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Lisne buhe (Hemiptera: Sternorrhyncha: Psylloidea) sitni su kukci koje je u prirodi teško otkriti, posebno kada se nalaze u populacijama niskog intenziteta. Procjenjuje se da je u svijetu do danas opisano oko 4000 vrsta klasificiranih u sedam porodica. Samo manji broj vrsta ubraja se u važne poljoprivredne štetnike, a u posljednje vrijeme dobivaju na značaju zahvaljujući spoznaji da prenose uzročnike biljnih bolesti. Faunističko istraživanje lisnih buha u Hrvatskoj započelo je 2015. godine. Cilj ovog istraživanja bio je sastaviti popis vrsta lisnih buha prisutnih u Hrvatskoj, uz pregled pripadajućih biljaka domaćina, kao i utvrditi potencijalno prisustvo nekih do danas u Hrvatskoj nepoznatih vrsta. Odrasli primjerci lisnih buha uzorkovani su entomološkim kečerom ili metodom otresanja biljaka na bijelu podlogu te su usnim aspiratorom prikupljani u Falcon epruvete i do laboratorijske analize pohranjeni u 70% etilni alkohol. Identifikacija vrsta provedena je klasičnom makroskopskom i mikroskopskom analizom na osnovi morfoloških karakteristika odraslih stadija i genitalija mužjaka, vrlo rijetko i ženki, uz korištenje dihotomnih ključeva dostupnih u literaturi. U periodu od 2015. do 2021. godine sljedeće vrste lisnih buha iz porodice Psyllidae zabilježene su po prvi puta u Hrvatskoj: Diaphorina chobauti Puton, 1898, Arytaina genistae (Latreille, 1805), Cacopsylla brunneipennis (Edwards, 1896), Cacopsylla myrthi (Puton, 1876), Cacopsylla saliceti (Foerster, 1848), Livilla variegata (Löw, 1881), Psylla foersteri Flor, 1861 i Psylla hartigii Flor, 1861.

Thrips palmi Karny, 1925 polifagna je fitofagna vrsta tripsa zabilježena na biljnim vrstama iz više od 36 porodica, posebice iz porodica Cucurbitaceae i Solanaceae. Vektor je destruktivnih biljnih tospovirusa. Pretpostavlja se da vrsta potječe iz južne Azije. Vrsta u EU ima status karantenskog štetnog organizma i često se presreće u uvoznim izvaneuropskim pošiljkama rezanog cvijeća, plodova i povrća. Štetnik predstavlja ozbiljan fitosanitarni rizik za poljoprivrednu proizvodnju na području Mediteranskog bazena. Provođenje programa posebnog nadzora nad štetnim organizmom T. palmi započeto je u Hrvatskoj 2021. godini. Vizualnim pregledima obuhvaćeni su nasadi povrća u zaštićenim prostorima te ukrasno bilje u rasadnicima i vrtnim centrima na 34 lokaliteta u 13 županija. Odrasli primjerci tripsa prikupljeni su otresanjem biljaka na bijelu podlogu ili izravno finim kistom s biljnih organa te pohranjeni do laboratorijske analize u AGA mješavini u Eppendorf epruvetama. Ukupno je obavljeno 46 vizualnih pregleda i pritom je prikupljen 101 uzorak tripsa s 43 biljne vrste za laboratorijsku analizu. Primjerci tripsa su u prikupljenim uzorcima mikroskopski identificirani do razine vrste na osnovi morfoloških karakteristika odraslih ženki, pomoću EPPO dijagnostičkog protokola PM 7/3 (3) i relevantnih ključeva za identifikaciju.U prikupljenim uzorcima determinirano je 19 vrsta tripsa, od kojih su Chaetanaphothrips orchidii (Moulton, 1907) i Scirtothrips cf. canizoi Titchak, 1964 nove za faunu tripsa u Hrvatskoj. Niti u jednom analiziranom uzorku nije identificirana karantenska vrsta T. palmi.

The Australian red gum lerp psyllid Glycaspis brimblecombei Moore, 1964 is recorded for the first time in Croatia. In the paper, a brief overview of the new pest with the locality of its first occurrence is provided.

First aim of this review paper is to make the checklist of the most important phytophagous insects from the Sternorrhyncha (Hemiptera) suborder that may feed on plants from genus Citrus, Fortunella and Poncirus, present in the Mediterranean basin. Second aim is to compare the mentioned list with Croatian findings from relevant literature. Third aim is to separate and describe possible risk for introduction and harmfulness of the most harmful species in Croatia. In the literature review 46 species (17 aphids, 21 scale insects, 6 whiteflies and 2 psyllids) which may feed on citrus plants were found to be present in selected countries. Out of that number, 37 species (13 aphids, 18 scale insects and 6 whiteflies) are reported for Croatia. Based on their potential to cause damages, ability to spread and the vicinity of the countries in which they are found, following species if introduced could be potential threat for citrus growing areas in Croatia: Toxoptera citricida (Kirkaldy), Aonidiella citrina (Craw, 1890), Parasaissetia nigra (Nietner, 1861), Trioza erytreae (Del Guercio, 1918), Aleurothrixus flocossus (Maskell, 1896) and Parabemisia myricae (Kuwana, 1927)., Prvi cilj ovog preglednog rada je napraviti popis najvažnijih fitofagnih kukaca iz podreda Sternorrhyncha (Hemiptera) prisutnih u Mediteranskom bazenu kojima domaćini mogu biti biljne vrste iz rodova Citrus, Fortunella i Poncirus. Drugi cilj je usporediti navedeni popis s vrstama utvrđenim u Hrvatskoj temeljem dostupne relevantne literature. Treći cilj je izdvojiti i opisati najštetnije vrste za koje postoji rizik od unosa i uzrokovanja šteta u Hrvatskoj. Literaturnim pregledom u odabranim zemljama utvrđeno je 46 vrsta kukaca kojima domaćini mogu biti agrumi (17 lisnih uši, 21 štitastih uši, 6 štitastih moljaca i 2 lisne buhe). Od toga je 37 vrsta kukaca (13 lisnih uši, 18 štitastih uši i 6 štitastih moljaca) nađeno u Hrvatskoj. Na temelju njihovog potencijala uzrokovanja šteta, sposobnosti širenja i blizine zemalja u kojima su prisutni, nekoliko vrsta kukaca u slučaju unosa mogu predstavljati potencijalnu opasnost za uzgojna područja agruma u Hrvatskoj: Toxoptera citricida (Kirkaldy), Aonidiella citrina (Craw, 1890), Parasaissetia nigra (Nietner, 1861), Trioza erytreae (Del Guercio, 1918), Aleurothrixus flocossus (Maskell, 1896) i Parabemisia myricae (Kuwana, 1927).

U radu su navedeni lokaliteti prvih nalaza bakrenastoga krasnika Perotis lugubris u nasadima šljive, višnje i lijeske na području istočne Slavonije i štete koje uzrokuje. Opisane su osnovne morfološke karakteristike. U laboratorijskom pokusu ispitana je učinkovitost biološkog insekticida na bazi entomopatogene gljive Beauveria bassiana protiv odraslih stadija bakrenastoga krasnika. Prema morfološkim značajkama utvrđeno je da bakrenasti krasnik pripada podvrsti P. lugubris lugubris, no potrebna su detaljnija morfometrijska istraživanja kako bi se potvrdio ovaj nalaz. Kritična brojnost bakrenastoga krasnika nije do sada istražena, no u našem istraživanju četiri imaga po sadnici načinila su 100%-tnu štetu na pupovima mladih sadnica koštićavog voća. Bakrenasti krasnik osjetljiv je na entomopatogenu gljivu B. bassiana s obzirom na to da je nakon jednog tretmana kukaca biološkim sredstvom utvrđen mortalitet kod 60% jedinki. Od 5 do 7 dana nakon tretmana na uginulim jedinkama zamijećena je pojava micelija B. bassiana što je važno za potencijal horizontalne transmisije gljive na nove domaćine kukce., The first occurence of the metallic wood-boring beetle Perotis lugubris in the area of Eastern Slavonia, and damages in plum, cherry and hazel plantations are reported by this study. Morphological characteristics and parameters of male genitalia and insect antennae were evaluated to identify the pest. The effectiveness of a commercial biological insecticide based on the entomopathogenic fungus Beauveria bassiana against the metallic wood-boring beetle adults was investigated under the laboratory condition. According to the insect morphological characteristics, the metallic wood-boring beetle was identified as subspecies P. lugubris lugubris, but detailed morphometric studies are required to confirm this finding. The critical population abundance of the metallic wood-boring beetle has not been investigated so far, but in our study four pest adults per one seedling of stone fruit did 100% damage to the buds. The metallic wood-boring beetle is susceptible to B. bassiana, considering that after one treatment with a biological agent, mortality was achieved in 60% of insects. From 5 to 7 days after the treatment, the appearance of B. bassiana mycelium on cadavers was noticed. is important for the potential horizontal transmission of the fungus to a new insect hosts.

Štitaste uši na vinovoj lozi, štetnici su koji na toj kulturi mogu pričinjati gospodarski značajne štete. Kod nas su to iz porodice Coccidae Pulvinaria vitis Linnaeus (lozina vunasta uš), Parthenolecanium corni Bouché (šljivina štitasta uš), Parthenolecanium persicae Fabricius (breskvina štitasta uš) i Neopulvinaria innumerabilis Rathvon (velika lozina vunasta uš), a iz porodice Pseudococcidae to je Planococcus ficus Signoret (smokvin crvac)., Scale insects are pests that can cause economically significant damage to vines. From the family Coccidae, these are Pulvinaria vitis Linnaeus, Parthenolecanium corni Bouché, Parthenolecanium persicae Fabricius and Neopulvinaria innumerabilis Rathvon and from family Pseudococcidae Planococcus ficus Signoret.

Štitasti moljci pripadaju redu Hemiptera unutar podreda Sternorrhyncha i imaju samo jednu natporodicu Aleyrodoidea. Sve su vrste svrstane u porodicu Aleyrodidae, koja uključuje 166 rodova s 1551 vrstom sistematiziranom u tri živuće (Aleyrodinae, Aleurodicinae, Udamosellinae) i jednu fosilnu potporodicu (Bernaeinae). Unutar potporodice Aleurodicinae opisano je 118 vrsta proširenih u cijelom svijetu koje primarno potječu iz Neotropikalne regije. Fauna štitastih moljaca Europe i Mediterana uključuje 56 autohtonih, ili nakon unošenja udomaćenih vrsta, razvrstanih u 25 rodova. Potporodici Aleurodicinae pripada pet zabilježenih vrsta iz rodova Aleurodicus Douglas, 1892, odnosno Paraleyrodes Quaintance, 1909, od kojih su tri nađene na Kanarskom otoku Gran Canaria. Posljednji objavljeni popis vrsta štitastih moljaca u Hrvatskoj sadržava 31 vrstu. Nakon toga zabilježeno je još pet novih vrsta. Sve one pripadaju isključivo potporodici Aleyrodinae. Gospodarski su najštetnije vrste: Aleyrodes proletella Linnaeus, 1758, Dialeurodes citri Ashmead, 1885, Trialeurodes vaporariorum Westwood, 1856 i odnedavno Bemisia tabaci Gennadius, 1889. Uzorci štitastih moljaca iz potporodice Aleurodicinae prikupljeni su na Kanarskim otocima u studenom 2014. s biljaka domaćina posađenih na javnim zelenim površinama grada Las Palmas i u gradskom botaničkom vrtu. Primjerci štitastih moljaca prikupljeni na zaraženim listovima identificirani su do vrste na osnovi morfoloških karakteristika puparija/egzuvija prema relevantnim morfološkim ključevima. Identificirane su sljedeće vrste: Aleurodicus dispersus Russell, 1965; Aleurodicus floccissimus (Martin, Hernández-Suárez i Carnero, 1997); Paraleyrodes minei Iaccarino, 1990. Sve su te vrste polifagni štetnici. S obzirom na proširenost u Mediteranskom bazenu, biljke domaćine i globalne klimatske promjene, unos i udomaćenost neke od vrsta iz porodice Aleurodicinae, posebice vrste P. minei, mogu se očekivati u budućnosti i u obalnoj Hrvatskoj., Whiteflies belong to the order Hemiptera and comprise a single superfamily, Aleyrodoidea, within the suborder Sternorrhyncha. They are all placed in a single family Aleyrodidae, which includes 166 genera and 1551 species in three extant subfamilies (Aleyrodinae, Aleurodicinae, Udamosellinae) and one fossil subfamily (Bernaeinae). The subfamily Aleurodicinae comprises 118 worldwide distributed species in 18 genera, originating primary from Neotropical region. In Europe and the Mediterranean region the whiteflies’ fauna comprises 57 native and naturalized species in 25 genera. Five recorded species from genera Aleurodicus Douglas, 1892 and Paraleyrodes Quaintance, 1909 belong to subfamily Aleurodicinae. Three of them were recorded on Canarian island Gran Canaria. The last published check list of whiteflies in Croatia comprises 31 species. Five additional species were discovered recently. All currently recorded species belong to subfamily Aleyrodinae, none to Aleurodicinae. Economically the most important pest species are: Aleyrodes proletella Linnaeus, 1758, Dialeurodes citri Ashmead, 1885, Trialeurodes vaporariorum Westwood, 1856 and recently Bemisia tabaci Gennadius, 1889. Whiteflies from subfamily Aleurodicinae were collected on plants planted on public green spaces and in the city’s botanical garden of Las Palmas on the Canary Islands in November 2014. Specimens collected from infested leaves were identified to the species level on the basis of morphological characters of puparium/pupal case according to the relevant morphological keys. The following Aleurodicinae species were recorded: Aleurodicus dispersus Russell, 1965, Aleurodicus floccissimus (Martin, Hernández-Suárez & Carnero, 1997) and Paraleyrodes minei Iaccarino, 1990. They are all polyphagous pest species. Considering distribution in the Mediterranean basin, host plants and global climate change, introduction and possible domestication of some species from the subfamily Aleurodicinae can be expected in the future in coastal Croatia, especially the species P. minei.

Fikusov štitasti moljac [Singhiella simplex (Singh, 1931)] (Hemiptera: Aleyrodidae) jedan je od najvažnijih štetnika različitih ukrasnih vrsta iz roda Ficus L. diljem svijeta. Smokvu (Ficus carica L.) ne napada. Invazivna je vrsta podrijetlom iz Azije. Na području Europe nađena je prvi put na Cipru 2014. Vrsta S. simplex nalazila se na EPPO Alert listi od 2014. do 2018. Taj štetnik može uzrokovati ozbiljne štete na biljkama domaćinima zbog sisanja hranjiva iz listova, uzrokujući pritom venuće, žućenje, defolijaciju te čak i uginuće biljke. U državama Mediterana značajan je štetnik stabala fikusa posađenih na zelenim javnim površinama, uzduž prometnica, u parkovima i na okućnicama. Vrsta S. simplex u Hrvatskoj je zabilježena 2019. na ulončenim biljkama Ficus benjamina L. i Ficus microcarpa L.f. uzgojenima u Nizozemskoj., The ficus whitefly [Singhiella simplex (Singh, 1931)] (Hemiptera: Aleyrodidae) is one of the most important pests of various ornamental Ficus species worldwide. Edible fig (Ficus carica L.) is not considered to be susceptible. It is an alien species originating from Asia. In Europe, the pest was first recorded in Cyprus in 2014, resulting in its addition to the EPPO Alert list in the same year. It was removed from the list in 2018. This pest can seriously damage host plants by sucking of nutrients from the leaves, subsequently causing wilting, yellowing, leaf drop or even plant’s death. In the Mediterranean countries, it causes a serious damage on ficus trees grown for ornamental purposes in urban public greeneries, planted along roads, in parks and gardens. S. simplex was intercepted in Croatia in 2019 on potted plants of Ficus benjamina L. and Ficus microcarpa L.f. originating from the Netherlands.

Narančin trnoviti štitasti moljac, Aleurocanthus spiniferus (Quaintance 1903) (Hemiptera, Aleyrodidae) novi je karantenski štetnik Hrvatske. Polifagani je štetnik koji napada brojne biljne vrste iz čak 38 različitih porodica, a najznačajniji su domaćini biljke iz rodova Citrus, Pyrus i Vitis. U Hrvatskoj je vrsta A. spiniferus prvi put zabilježena 2012. godine na ukrasnim sadnicama naranče (Citrus x aurantium L.,) nakon čega je uspješno eradicirana. Tijekom 2018. godine potvrđena je prisutnost trnovitog štitastog moljca u Dubrovačko neretvanskoj županiji, u mjestu Vitaljina. Štetnik se zasada proširio na području Konavala, a utvrđen je i na otoku Hvaru. Njegovo širenje predstavlja visoku fitosanitarnu prijetnju proizvodnji ostalog poljoprivrednog bilja. U Hrvatskoj do sada nisu istraživana obilježja ovog štetnika. Cilj rada bio je prikazati biologiju štetnika od kraja srpnja do kraja prosinca 2019. godine u poljskim uvjetima u Vitaljini. Unutar nasada postavljen je insektarij bez regulacije temperature i vlage u kojemu je postavljena sadnica mandarine Citrus Unshiu Marc. 'Owari'. Da bi se utvrdio životni ciklus, sadnica mandarine umjetno je zaražena s 50 jedinaka odraslih oblika štetnika. Također, provedeno je i utvrđivanje razdoblja nazočnosti svih razvojnih stadija štetnika na listu. Uzorkovanje se provodilo svakih 7 do 10 dana u razdoblju vegetacije i jednom mjesečno u razdoblju mirovanja. Tijekom praćenja životnog ciklusa kukca, ovisno o klimatskim uvjetima, embrionalni razvoj A. spiniferusa trajao je 12 do 15 dana, razvoj ličinke 36 do 43 dana te puparija 12 do 17 dana. Ukupni razvoj od jaja do pojave odraslog oblika trajao je 60 do75 dana., Orange spiny whitefly (OSW), Aleurocanthus spiniferus (Quaintance, 1903) (Hemiptera, Aleyrodidae) is a new quarantine pest of Croatia. It is a polyphagous insect which infest plant species belonging to 38 plant families, but the main hosts are plants of the genera Citrus, Pyrus and Vitis. In Croatia, A. spiniferus was first found in 2012. on ornamental potted orange seedlings (Citrus x aurantium L) in one nursery garden in Split. After indentification, this pest was eradicated. During the 2018. the presence of OSW was reported in Dubrovnik –Neretva valley, in Vitaljina. This pest continued to spread through the area of Konavle and the presence of OSW on the island of Hvar was recorded, what presents high phytosanitary risk to various agricultural crops. The characteristics of this pest have not been studied in Croatia. Accordingly, the aim of this article is to present the biology of pest in field conditions in Vitaljina from July to December, 2019. Inside the nursery, an insectarium without temperature and humidity regulation was placed, in which a mandarin seedling Citrus Unshiu Marc 'Owari' was placed. To determine the life cycle, a mandarin seedling was artificially infected with 50 individuals of adult. Also, the period of presence of all developmental stages of pests on the leaf was determined. Sampling was performed every 7-10 days during the growing season and once a month during the dormant period. During the research and monitoring of the life cycle of the insect during August, depending on the climatic conditions, the embryonic development of Aleurocanthus spiniferus lasted 12-15 days, the development of the larvae 36 - 43 days and the "puparium" for 12-17 days. The total development from egg to adult form lasted 60-75 days. In early October, the adult emerged, ending the life cycle.

Smrdljiva zelena stjenica široko je rasprostranjena i izrazito polifagna vrsta. Iako od povrtnih vrsta najvede štete uzrokuje na kupusnjačama i plodovitom povrdu, njezina ishrana na tikvenjačama može izazvati štete. Bududi da je smrdljiva zelena stjenica podrijetlom iz toplih suptropskih i tropskih krajeva, klimatske promjene i sve učestalija odstupanja od temperaturnih i oborinskih prosjeka pogoduju sve češćoj i brojnijoj pojavi ovog štetnika. Stjenica razvija 4- 5 preklapajudih generacija godišnje, a štete pričinjavaju ličinke i odrasli razvojni stadiji ishranom na stabljikama, listovima, cvjetovima i plodovima. Trenutno u Republici Hrvatskoj nema registriranih kemijskih insekticida za suzbijanje smrdljive zelene stjenice na tikvenjačama, pa je u slučaju intenzivnog napada u ranoj fazi na mladim biljčicama potrebno provoditi nekemijske mjere suzbijanja., Southern green stink bug is a polyphagous pest with a world-wide distribution. Although its primary vegetable hosts are cruciferous and bulb vegetables, feeding on cucurbits can cause damage. Recent climate change, with frequent deviations from temperature and precipitation averages, causes more frequent and abundant occurrence of this pest originating from tropical and sub-tropical areas. The southern green stink bug has 4-5 overlapping generations per year. Fifth instars and adults cause damages by feeding on stems, leaves, flowers and fruits. There are currently no chemical plant protection products registered for the control of southern green stink bug in Croatia on cucurbits. Therefore, in case of heavy infestation on young plants, non-chemical measures should be undertaken.

Muhe lisni mineri (Agromyzidae) sitne su muhe žuto crne boje tijela. Štete na kulturnim biljkama uzrokuju ličinke pravedi karakteristične hodnike („mine“) u mezofilu listova. Dodatne štete čine ženke ubadanjem tkiva na licu lista radi ishrane i odlaganja jaja, zbog čega nastaju male, okruglaste rane. Najštetnije na tikvenjačama svakako su polifagne vrste: Chromatomyia horticola (Goureau, 1851), Liriomyza trifoli (Burgess, 1880), Liriomyza bryoniae (Kaltenbach, 1858) i Liriomyza huidobrensis (Blanchard, 1926). Muhe lisnih minera tijekom razvoja prolaze kroz stadij jaja, tri stadija ličinke, stadij kukuljice i odrasli razvojni stadij. Tijekom godine razvijaju brojne poklapajuće generacije, posebice u zaštićenim prostorima. „Mine“ i ubodi ženka na listovima značajno smanjuju fotosintezu biljaka i mogu imati za posljedicu sušenje i prijevremeno otpadanje listova te smanjenu kvantitetu i kakvoću uroda. Napadnute presadnice i tek posađene biljke mogu potpuno propasti. Suzbijanje muha lisnih minera otežano je, posebice u tikvenjačama u zaštićenim prostorima, zbog brojnih generacija koje se razvijaju tijekom godine, brzog razvoja rezistentnosti na primijenjene insekticide i skrivena načina života ličinki unutar „mina“ na listovima. U Hrvatskoj trenutačno nema dovoljno registriranih pripravaka na tržištu za suzbijanje ovih štetnika. Stoga je za učinkovito suzbijanje važna implementacija integriranog pristupa zaštite koji uključuje sve raspoložive kulturalne, fizikalne i biološke mjere., Leaf-mining flies (Agromyzidae) is a family of small yellow and black coloured flies, whose larvae cause damage on cultural plants by tunnelling into the leaf tissue between upper and lower leaf surfaces, creating characteristic „mines“. Females cause additional damage by creating small round feeding and oviposition punctures on upper leaf surface. The most important pests of cucurbits are four polyphagous species: Chromatomyia horticola (Goureau, 1851), Liriomyza trifoli (Burgess, 1880), Liriomyza bryoniae (Kaltenbach, 1858) and Liriomyza huidobrensis (Blanchard, 1926). The life-cycle of leaf-mining flies comprises following stages: egg, three larval instars, a pupal instar and adult fly. Leaf-mining flies develop numerous, overlapping generations throughout the year, especially in greenhouse conditions. “Mines” and punctures made by female flies greatly reduce photosynthesis and can lead to desiccation and premature leaf-fall that subsequently reduces yield and fruit quality. As a result of the damage caused by leaf-mining flies, seedlings and young plants can be totally destroyed. Control of leaf-mining flies is very difficult, particularly in protected cucurbits due to many generations these pest have during a year, fast development of resistance to most commonly used insecticides and larvae being hidden inside the “mines” in leaves. Also, there is currently a lack of registered products on the market in Croatia for the chemical control of these pests. Therefore, IPM must be applied for the efficient control of leaf-mining flies in cucurbits, including all available cultural, physical and biological measures.

Hrvatskoj je lisna uš, Prociphilus oleae, prvi put registrirana u lipnju 2018. u masliniku na području Šibensko‐kninske županije, na dva lokaliteta. Napadnute su masline koje su bile izložene niskim temperaturama i nepovoljnim klimatskim uvjetima tijekom protekle zime. U neposrednoj blizini maslinika nalazili su se i vinogradi. Simptomi napada lisne uši P. oleae i maslinine lisne buhe Euphyllura olivina izgledaju jako slično zbog njihovih bijelih voštanih niti, te je jedino mikroskopska determinacija pouzdana. Uš P. oleae nađena je prilikom vizualnih pregleda maslina. Prisutnost odraslih stadija i ličinki P. oleae određena je vizualnim pregledima. Prikupljeni su uzorci maslina koje su pokazivale simptome napada. Jedinke su preparirane u vidu trajnog mikroskopskog preparata i determinirane na temelju morfoloških karakteristika odraslih jedinki. Determinacijom je potvrđeno da se radi o vrsti P. oleae. U Hrvatskoj do sada nisu utvrđene značajne štete, no ipak ovu lisnu uš možemo smatrati potencijalnim manje opasnim štetnikom masline., P. oleae was registered for the first time in Croatia in June 2018 in the olive grove in the Šibenik‐Knin County on two locations. The olives infested by this aphid were exposed to low temperatures and adverse climatic conditions over the past winter. In the vicinity of the olive groves there were also vineyards. Symptoms of P. oleae and E. olivina look very similar because of their white waxy filaments this two species so only microscopic identification is relevant. Host plants were surveyed visually for the presence of immature or adult stages. Host plant material infested with aphids was collected. Characteristics of collected specimens were observed under the dissecting stereo microscope. Aphids were subsequently slide mounted and microscopic identification was made on the basis of morphological characteristics of adults. Determination confirmed the species was P. oleae. Even though there has been no significant damage in Croatia so far, P. oleae can still be considered as a potential but less significant olive pest.

Scolothrips longicornis Priesner, 1926 (Thysanoptera: Thripidae: Thripinae) is a predaceous thrips species originating from Western-Palearctic zoogeographical region. It is a predator of all stages of spider mites from the family Tetranychidae. S. longicornis has been recorded in many European countries: Poland, Czech Republic, Slovakia, Hungary, Romania, Austria, France, Spain, Italy, United Kingdom and Finland. In Europe, findings of six species from the genus Scolothrips Hinds, 1902, have been recorded, S. longicornis including. S. longicornis was found for the first time in Croatia in 2017 on leaves of soybean and ornamental plants Hydrangea sp. and Datura sp. in greenhouses. In 2018, the species was also recorded on indoor Alocasia sp. Predatory thrips species was present on leaves of plants in association with polyphagous spider mite Tetranychus urticae Koch, 1889. Thrips and spider mites present in collected samples were identified to the species level on the basis of microscopic morphological characters, using classical identification method according to relevant morphological keys. Since, S. longicornis is a new thrips species for the fauna of Croatia and one of the numerous newly discovered, the last published national check list of thrips fauna should be updated.

Indijska voštana štitasta uš Ceroplastes ceriferus (Fabricius, 1789) prvi je put u Hrvatskoj pronađena u kolovozu 2017. na lovoru (Laurus nobilis L.) u Crikvenici. Prema DAISE strana je vrsta za Europu. Iz roda Ceroplastes Gray, 1828 prije toga u Hrvatskoj registrirane su vrste Ceroplastes japonicus, Ceroplastes rusci i Ceroplastes sinensis. Sve spomenute vrste imaju status polifagnih štetnika i napadaju brojno ukrasno drveće i grmlje te voćne vrste. C. Ceriferus i C. Japonicus preferiraju kao biljku domaćina lovor, C. rusci smokvu, a C. sinensis je nađena samo u dva navrata na agrumima. C. japonicus i C. rusci prošireni su u čitavom obalnom području. C. ceriferus i sve vrste iz istog roda karakterizira izuzetno debeli sloj voska te obilno lučenje medne rose na koju se naseljavaju gljive čađavice. Upravo one uzrokuju najveće štete na napadnutim dijelovima biljaka., Indian wax scale Ceroplastes ceriferus (Fabricius, 1798) was found for the first time in Croatia in August 2017 on laurel plants (Laurus nobilis L.) in Crikvenica. According to DAISIE, this species is alien to Europe. Prior to this finding, the following species from the genus Ceroplastes Gray 1828 have been recorded in Croatia: Ceroplastes japonicus, Ceroplastes rusci and Ceroplastes sinensis. All recorded species are polyphagous pests that feed on numerous ornamental trees and shrubs as well as fruit species. Both C. ceriferus and C. japonicus feed primarily on laurel, C. rusci prefers feeding on fig plants, while C. sinensis has so far been recorded twice on citrus plants. Both C. japonicus and C. rusci are widespread along the entire Croatian Adriatic coast. Like other species from this genus, C. ceriferus is characterised by a very thick wax layer and abundant excretion of honeydew that is subsequently covered in sooty mould. Occurrence of sooty mould causes the most significant damage to the infested host plants.

A check list of whiteflies in Croatia contains 31 species. This is the result of browsing the literature of faunistic investigations of whiteflies in Croatia from 1940 to 2007 and faunistic research done by the authors in the period 2005–2007. During faunistic investigations, 7 of the total 31 recorded species were whitefly species with dark puparia and pupal cases. These are the following species: Aleuroclava hikosanensisTakahashi 1938, Aleurolobus olivinus Silvestri 1911, Aleurolobus wunni Ryberg 1938, Aleurotuba jelinekii Frauenfeld 1867, Aleuroviggianus adrianae Iaccarino 1982, Simplaleurodes hemisphaerica Goux 1945 and Tetralicia ericae Harrison 1917. In addition to these, another 2 whitefly species with dark puparia and pupal cases were recorded later in Croatia. These are Aleurocanthus spiniferus (Quaintance 1903), which was reported for the first time in Croatia in 2012 and Aleuroclava aucubae (Kuwana 1911), first detected in Croatia in 2013

Kelijev trips agruma [Pezothrips kellyanus (Bagnall, 1916)] zabilježen je prvi put u Hrvatskoj 2016. u nasadu naranče u Komiži (N 43°02'40" E 16°05'30.4"), zatim u mješovitom nasadu naranče, limuna i grejpa u Hvaru (N 43°10'19.7" E 16°26'13.5") te u jednom nasadu u kojem su bile posađene naranča i mandarina u Kaštel Kambelovcu (N 43°33'10.5" E 16°22'56.09"). Vrsta je detektirana u sklopu provođenja programa posebnog nadzora karantenskih vrsta tripsa iz roda Scirtothrips Shull, 1909 u nasadima agruma. Vizualni pregledi i prikupljanje uzoraka tripsa obavljeni su od početka cvatnje do početka razvoja ploda. Uzorci tripsa prikupljeni su otresanjem grana te iz prikupljenih uzoraka cvjetova, odnosno mladih plodova agruma. Za laboratorijsku ekstrakciju primjeraka tripsa iz uzoraka biljnog materijala primijenjena je modificirana metoda Berlese lijevka. Vrsta tripsa u prikupljenim uzorcima identificirana je na osnovi morfoloških karakteristika odraslih ženki, uz pomoć relevantnih ključeva. P. kellyanus polifagna je vrsta tripsa koja obitava u cvjetovima biljaka iz različitih porodica. U Australiji, na Novom Zelandu i u nekim mediteranskim državama postala je važan gospodarski štetnik agruma. Ova vrsta napada sve vrste agruma, ali je najštetnija na limunu, naranči i grejpu. Mandarina je manje osjetljiva, što je potvrđeno rezultatima provođenja programa jer vrsta P. kellyanus nije nađena niti u jednom nasadu mandarine u monokulturi. Štetnik ishranom na mladim plodovima uzrokuje pojavu srebrnkastih ožiljaka u obliku prstena, uglavnom oko vrha ploda. Takvi simptomi snižavaju tržišnu vrijednost, iako ne utječu na kvalitetu ploda., Kelly's citrus thrips [Pezothrips kellyanus (Bagnall, 1916)] was found for the first time in Croatia in orange plantation in Komiža (N 43°02'40" E 16°05'30.4"), than in mixed cultivation of orange, lemon and grapefruit in Hvar (N 43°10'19.7" E 16°26'13.5"), as well as in mixed plantation of orange and mandarin in Kaštel Kambelovac (N 43°33'10.5" E 16°22'56.09") in 2016. Species was detected during survey of quarantine thrips species from genus Scirtothrips Shull, 1909 in citrus orchards. Visual inspections and thrips sampling were conducted during flowering and at the beginning of fruit development. Thrips were collected by beating of citrus branches. Also, citrus flowers and young fruits were collected during visual inspections for subsequent laboratory analysis. Modified Berlese funnels method was used for extraction of thrips from samples of plant material in laboratory. Thrips from collected samples were identified to the species level on the basis of morphological characters of adult females, using the classical identification method according to relevant morphological keys. P. kellyanus is a polyphagous thrips species, living in flowers of different plant families. It became an economic pest in citrus plantations in Australia, New Zealand and some Mediterranean countries. All citrus species can be attacked, but lemons, orange and grapefruit are particularly susceptible. Mandarin is less frequently attacked, which was confirmed during survey conducted in 2015 and 2016, since species P. kellyanus was not recorded in any monoculture mandarin plantation. Thrips feeding on immature fruit causes a silvery, ring like scars on the fruit surface, mainly around the calyx area. Infested fruits are considered unacceptable for the market, though the presence of the scars affects only the appearance and not the quality of the fruit.

Japanski cvjetni trips (Thrips setosus Moulton, 1928) (Thysanoptera: Thripidae) nađen je u svibnju 2016. na ulončenim biljkama hortenzije (Hydrangea spp.) iz domaćeg uzgoja. Štetnik je zabilježen na otvorenom, u vrtnom centru u Turnju (N 43°58'18.5“ E 15°25'1.5“). Ovo je prvi nalaz te invazivne vrste u Hrvatskoj. Trips je detektiran tijekom fitosanitarnog nadzora bilja, kada su na listovima hortenzija uočene nespecifične štete. Pregledom naličja listova određena je niska populacija odraslih stadija tamne boje i svijetlih ličinki tripsa te za tripse karakteristični simptomi u obliku srebrnkastih mrlja i tamnih tragova izmeta. Nekoliko primjeraka odraslih tripsa prikupljeno je za laboratorijsku analizu. Mikroskopskom morfološkom determinacijom ženki, uz pomoć relevantnih ključeva, u uzorku je identificirana vrsta T. setosus. Podrijetlo nađene populacije štetnika nije poznato, ali se može pretpostaviti da je unesen uvozom hortenzija iz Nizozemske, gdje je trips nađen 2014. Vrsta T. setosus originalno potječe iz Azije. Polifagan je štetnik i vektor virusa pjegavosti i venuća rajčice (TSWV), zbog čega predstavlja potencijalnu opasnost za proizvodnju povrća u Hrvatskoj, posebice rajčice, paprike i krastavca u zaštićenim prostorima., Japanese flower thrips (Thrips setosus Moulton, 1928) (Thysanoptera: Thripidae) was found in Croatia in May 2016 on potted hydrangea plants (Hydrangea spp.) originating from domestic production. It was found in the open, in a nursery in Turanj (N 43°58'18.5“ E 15°25'1.5“). This is the first record of this invasive species in Croatia. Pest was detected during regular phytosanitary visual inspections of plants, when unusual damage on Hydrangea leaves was noticed. Low infestation of dark adults and light coloured larvae, as well as typical thrips damage (silvery spots with dark excrements on the underside of the leaf), were observed on infested plants. Several adult thrips were sampled for laboratory analysis. Thrips females were identified based on morphological characteristics as species T. setosus, according to the relevant keys. The origin of the finding is unknown, but it could be linked to import of hydrangea plants from the Netherlands, where T. setosus was first recorded in 2014. It originally comes from Asia. Due to its highly polyphagous nature and the ability to transmit Tomato spotted wilt virus (TSWV), T. setosus presents a potential risk to vegetable crops in Croatia, especially glasshouse production of tomato, pepper and cucumber.

Scirtothrips aurantii Faure, 1929, Scirtothrips citri (Moulton, 1909) i Scirtothrips dorsalis Hood, 1919 polifagne su karantenske vrste tripsa. Odrasli razvojni stadiji i ličinke hrane se na agrumima sisanjem biljnih sokova na mladim listovima i plodovima, a starije lišće i plodove ne napadaju. Simptomi karakteristični za napad tripsa iz roda Scirtothrips Shull, 1909 na agrumima jesu srebrolikost lista, rubno zadebljanje i uvijanje mladih listova, tripsov izmet smeđe boje na listovima i plodovima te sivi do crni ožiljci u obliku prstena oko vršnoga dijela ploda. Posljedica jakog napada jesu deformacija plodova i ranije otpadanje listova. Program posebnog nadzora karantenskih vrsta tripsa proveden je tijekom 2015. i 2016. u ukupno 36 nasada agruma na području Zadarske, Šibensko-kninske, Splitsko-dalmatinske i Dubrovačko-neretvanske županije. Vizualni pregledi i prikupljanje uzoraka tripsa obavljeni su od početka cvatnje do početka razvoja ploda (BBCH 55-72) tijekom mjeseca travnja, svibnja i lipnja. Uzorci tripsa prikupljeni su otresanjem grana na bijelu plastičnu podlogu. Tijekom svakog vizualnog pregleda prikupljeni su za laboratorijsku analizu i cvjetovi, odnosno mladi plodovi. Za ekstrakciju primjeraka tripsa u laboratoriju iz uzoraka biljnog materijala primijenjena je modificirana metoda Berlese lijevka. Ukupno su tijekom 2015. i 2016. obavljena 72 vizualna pregleda te je prikupljeno i laboratorijski analizirano 208 uzoraka tripsa. Tripsi su u prikupljenim uzorcima identificirani na osnovi morfoloških karakteristika odraslih ženki, uz pomoć relevantnih ključeva. Niti u jednom prikupljenom uzorku nisu identificirane karantenske vrste S. aurantii, S. citri i S. dorsalis. Thrips major Uzel, 1895, Thrips tabaci Lindeman, 1889 i Thrips meridionalis Priesner, 1926 bile su brojčano najzastupljenije i vrste zabilježene u najvećem broju nasada. Vrste Dendrothrips phyllireae (Bagnall, 1927) i Thrips mediterraneus Priesner, 1934 i Pezothrips kellyanus (Bagnall, 1916), koji je važan štetnik agruma na području Mediterana, prvi su put zabilježene u Hrvatskoj., Scirtothrips aurantii Faure, 1929, Scirtothrips citri (Moulton, 1909) and Scirtothrips dorsalis Hood, 1919 are quarantine polyphagous thrips species. Adults and thrips larvae feed on young leaves and fruits of citrus, but not on mature leaves and fruits. Symptoms of feeding range from silvering of the leaf surface, thickening of the leaf edge and curling of the leaves to brown frass markings on the leaves and fruits and grey to black markings on fruits, often forming a ring around the apex. The consequences of heavy infestation are fruit deformation and premature defoliation. A survey of quarantine thrips species was conducted in 2015 and 2016 in 36 citrus plantations in Zadar, Šibenik-Knin, Split-Dalmatia and Dubrovnik-Neretva counties. Visual inspections and thrips sampling were conducted during flowering and at the beginning of fruit development (BBCH 55-72) in April, May and June. Thrips were collected by beating of citrus branches on a white plastic tray. Also, citrus flowers and young fruits were collected during visual inspections on each site for subsequent laboratory analysis. Modified Berlese funnels method was used for extraction of thrips from samples of plant material in laboratory conditions. Altogether 72 visual inspections were carried out and 208 samples of thrips were collected for species identification. Thrips from collected samples were identified to the species level on the basis of morphological characters of adult females, using the classical identification method according to relevant morphological keys. Quarantine species S. aurantii, S. citri and S. dorsalis were not determined in any of the analysed samples. The most common and abundant thrips species were Thrips major Uzel, 1895, Thrips tabaci Lindeman, 1889 and Thrips meridionalis Priesner, 1926. Species Dendrothrips phyllireae (Bagnall, 1927) and Thrips mediterraneus Priesner, 1934, as well as Pezothrips kellyanus (Bagnall, 1916) as an important citrus pest in the Mediterranean region, were recorded for the first time in Croatia.

Aponychus corpuzae Rimando 1966 orijentalna je i istočno-palearktička vrsta grinje nađena prvi put u Hrvatskoj u kolovozu 2015. na biljkama bambusa (Phyllostachys sp.) u Poreču. Na bambusu nisu uočeni simptomi napada, ali pregledom listova s pomoću lupe nađene su na naličju neobične narančaste grinje, plosnatoga tijela s vrlo dugim nogama. Laboratorijskom analizom u uzorku listova determinirana je neeuropska vrsta A. corpuzae. To je umjereno polifagna vrsta koja iskazuje preferenciju prema različitim vrstama bambusa. Na području Zapadnog Palearktika, A. corpuzae zabilježena je samo u Sloveniji i Italiji., Aponychus corpuzae Rimando 1966 is an Oriental and East-Palearctic spider mite species. In Croatia it was first recorded on bamboo (Phyllostachys sp.) in August 2015 in Poreč. No damage was observed on bamboo plants, but orange mites with unusual flat appearance and very long legs were detected by visual inspection of leaves using the magnifying lens. An alien species A. corpuzae was identified by the laboratory analysis of collected leaf samples. It is moderately polyphagous species that prefers different bamboos as host plants. So far, A. corpuzae was recorded in the West-Palearctic region only in Slovenia and Italy.

Sažetak Popis štitastih uši na domaćinima iz roda Quercus L. sastavljen je od svih dostupnih literaturnih podataka faunističkih istraživanja štitastih uši u Hrvatskoj i podataka faunističkih istraživanja koja su trajala od 2005. do 2014. Prema literaturnim podacima u Hrvatskoj registrirano je 15 vrsta štitastih uši na hrastu. Istraživanjima je utvrđeno 12 vrsta štitastih uši, od kojih je u odnosu na vrste iz literaturnih podataka registrirano šest novih. U ovom trenutku popis štitastih uši na hrastovima obuhvaća 21 vrstu iz četiri porodice kako slijedi: porodica Asterolecanidae: Asterodiaspis ilicicola (Targioni Tozzetti 1888), A. quercicola (Bouche 1851), A. variolosa (Ratzeburg 1870), porodica Coccidae: Coccus hesperidum Linnaeus 1758, Eulecanium tiliae (Linnaeus 1758), Parthenolecanium rufulum Cockerell 1903, Pulvinaria sericea (Fourcroy 1785), porodica Diaspididae: Chionaspis etrusca Leonardi 1908, C. lepineyi Balachowsky 1928, C. salicis (Linnaeus 1758), Diaspidiotus alni (Marchal 1909), D. bavaricus (Lindinger 1912), D. ostreaeformis (Curtis 1843), D. zonatus (Frauenfeld 1868), Gonaspidiotus minimus (Leonardi in: Berlese & Leonardi 1896), Lepidosaphes beckii (Newman 1869), L. ulmi (Linnaeus 1758), Targionia vitis (Signoret 1876) i porodica Kermesidae: Kermes quercus (Linnaeus 1758), K. roboris (Fourcroy 1785) i K. vermilio Planchon 1864. U srpnju 2014. godine, zamijećeno je propadanje hrasta crnike u Poreču. Nakon što je obavljen vizualni pregled, uzeti su uzorci. Dijagnostička analiza, koja je obavljena u Laboratoriju za zoologiju Zavoda za zaštitu bilja, pokazala je da se radi o štitastoj uši crnike K. vermilio. Budući da je ovo prvi nalaz K. vermilio u Hrvatskoj, vrstu možemo smatrati novim članom hrvatske entomofaune. Ova štitasta uš napada zimzelene domaćine iz roda Quercus, ponaj­prije Quercus ilex L. Široko je rasprostranjena u zemljama Mediteranskog bazena. U prošlosti, štitasta uš K. vermilio imala je značajnu gospodarsku važnost kao izvor crvene boje za tkaninu, no danas ima status invazivnog gospodarski značajnog štetnika.

Tijekom provođenja programa posebnog nadzora štetnih organizama s IA1 i IA2 popisa Direktive 2000/29/EC na agrumima u 2015., prvi put u Hrvatskoj zabilježena je vrsta Parabemisia myricae (Kuwana 1927) (Hemiptera: Aleyrodidae). Štitasti moljac, koji izvorno potječe iz Japana, nađen je vizualnim pregledom listova limuna (Citrus x limon) u nasadu u mjestu Lumbarda na otoku Korčuli. Osim na limunu, vrsta je zabilježena i na obližnjem listopadnom stablu podrijetlom iz Azije Broussonetia papyrifera (L.) Vent. (Moraceae). Vrsta P. myricae determinirana je na osnovi morfoloških karakteristika puparija/egzuvija metodom klasične morfološke identifikacije. U prirodi, „puparij“ ima spljošteno ovalno tijelo, bijele do žućkaste boje, obrubljeno prozirnim voštanim prstenom. Preparirani egzuvij uzduž ruba ima 14 parova podjednako dugih i pravilno raspoređenih dlaka, uključujući par kaudalnih dlaka. Analni je otvor izdužen, trokutastog oblika. Poklopac zauzima oko polovice unutrašnjosti analnog otvora. Jezičac je izdužen i ima dva karakteristična postrana tupa proširenja, a završava s dvije duge dlake. P. myricae istočnopalearktička je invazivna vrsta, široko rasprostranjena u svijetu. Polifagan je štetnik koji u nekim državama Mediterana uzrokuje gospodarske štete na agrumima te predstavlja potencijalno ozbiljnu fitosanitarnu prijetnju proizvodnji agruma i u Hrvatskoj, posebice uzgoju mandarine u dolini Neretve., Parabemisia myricae (Kuwana 1927) is an East Palearctic whitefly species. The common name Japanese bayberry whitefly is often applied. It is native to Japan and alien to Europe. P. myricae has become a pest in several different parts of the world and is widely distributed across the Mediterranean Basin, where avocado and citrus are the major hosts. It is extremely polyphagous insect recorded from woody dicotyledonous hosts from 14 families. This whitefly species was first found in Croatia in September 2015 on lemon and ornamental tree Broussonetia papyrifera (L.) Vent. in low population in Lumbarda (N42°55'20.9'' E17°10'16.8'') on the island of Korčula. Species P. myricae was identified on the basis of morphological characteristics of puparium/pupal case, using the classical microscopic identification method. In the field, the puparium is broadly suboval and flatten, white to yellowish, with a translucent wax fringe that borders the body. On slide, the pupal case has an outer submargin with a row of 14 pairs, including caudal pair of evenly spaced and even-sized setae. Vasiform orifice is triangular to elongate-cordate with operculum occupying its basal half and elongated lingula with characteristic two blunt laterobasal lobes and two long setae. Favourable climatic conditions, biodiversity and appropriate plant hosts were the parameters for the screening pest risk analysis upon which can be predicted that whitefly P. myricae will spread in Mediterranean part of Croatia in the future and therefore it represents a potential phytosanitary risk for citrus production.

Koprivina grinja Tetranychus urticae (Koch) i hrđasta grinja rajčice Aculops lycopersici (Masse) kozmopolitski su štetnici. Izraziti su polifagi i osim rajčice napadaju i brojne druge vrste kultiviranoga i samonikloga bilja. U vrlo kratkom vremenu mogu pričiniti velike štete stoga je potrebno provoditi niz različitih mjera koje uključuju sve raspoložive nepesticidne metode, ali i kemijsko suzbijanje. Bez kontinuiranog monitoringa na prisutnost grinja, ne može se na vrijeme zaštiti nasad od tih štetnika koji mogu uzrokovati velike štete., Twospotted spider mite Tetranychus urticae (Koch) and tomato russet mite Aculops lycopersici (Masse) are cosmopolitan pests. Both species are extremely polyphagous and have been reported on numerous host plants, including tomato. In a very short period of time can cause a lot of damage so it is necessary to implement a variety of measures, including chemical control. Without continuous monitoring, it is not possible to protect tomato from mites, which can cause great damage.

Dvije su vrste štitastih moljaca gospodarski važni štetnici koji napadaju rajčicu u zaštićenim prostorima u Hrvatskoj. To su staklenički štitasti moljac (Trialeurodes vaporariorum Westwood 1856) i duhanov štitasti moljac (Bemisia tabaci Gennadius 1889) . Izravne štete na biljkama uzrokuju odrasli razvojni stadiji i ličinke sisanjem biljnih sokova na listovima, a neizravne su štete povezane s prenošenjem patogenih virusnih oboljenja i s izlučivanjem medne rose na koju se sekundarno naseljavaju gljivice čađavice. U nasadima rajčice u zaštićenim prostorima štitasti moljci prisutni su tijekom cijele vegetacije, od faze presadnica do berbe. Suzbijanje se provodi kemijski insekticidima, biološki introdukcijom prirodnih neprijatelja i implementacijom različitih mjera integrirane zaštite., Greenhouse whitefly (Trialeurodes vaporariorum Westwood 1856) and tobacco whitefly (Bemisia tabaci Gennadius 1889) are two economically important pests of greenhouse tomato in Croatia. Adults and larvae damage the plants directly by sucking on the leaves. Indirect damages are caused by transmission of viruses and excretion of honeydew that is subsequently inhabited by sooty mould. In greenhouse production of tomato, whiteflies occur throughout entire vegetation. The whiteflies can be control with application of chemical insecticides, introduction of their natural enemies and implementation of different IPM measures.

Od kad je introducirana iz Sjeverne Amerike, krumpirova zlatica postaje najozbiljniji štetnik krumpira u najvećem dijelu Europe, a napada i patlidžan, papriku, rajčicu i duhan. U Hrvatskoj se proširila na svim područjima uzgoja biljaka domaćina,osim na nekim otocima. Štete uzrokuju ličinke i odrasle zlatice izgrizanjem listova, stabljika i plodova rajčice. Njezino suzbijanje sve je veći problem jer je vrsta sklona brzom razvijanju rezistentnosti pa se stalno smanjuje broj kemijskih pripravaka koji je uspješno suzbijaju., Since its introduction into Europe, Colorado potato beetle has become most severe pest on potato, but it also causes damage on aubergine, pepper, tomato and tobacco. It is widely spread throughout Croatia, with exception of some islands. Larvae and adults cause damage by feeding on leaves, stems and fruits of tomato plants. Control of this pest presents a big challenge, since the species is very prone to development of resistance. Therefore, the number of efficient plant protection products for its control is declining.

SažetakPopis štitastih uši na domaćinima iz roda Quercus L. sastavljen je od svih dostupnih literaturnih podataka faunističkih istraživanja štitastih uši u Hrvatskoj i podataka faunističkih istraživanja koja su trajala od 2005. do 2014. Prema literaturnim podacima u Hrvatskoj registrirano je 15 vrsta štitastih uši na hrastu. Istraživanjima je utvrđeno 12 vrsta štitastih uši, od kojih je u odnosu na vrste iz literaturnih podataka registrirano šest novih. U ovom trenutku popis štitastih uši na hrastovima obuhvaća 21 vrstu iz četiri porodice kako slijedi: porodica Asterolecanidae: Asterodiaspis ilicicola (Targioni Tozzetti 1888), A. quercicola (Bouche 1851), A. variolosa (Ratzeburg 1870), porodica Coccidae: Coccus hesperidum Linnaeus 1758, Eulecanium tiliae (Linnaeus 1758), Parthenolecanium rufulum Cockerell 1903, Pulvinaria sericea (Fourcroy 1785), porodica Diaspididae: Chionaspis etrusca Leonardi 1908, C. lepineyi Balachowsky 1928, C. salicis (Linnaeus 1758), Diaspidiotus alni (Marchal 1909), D. bavaricus (Lindinger 1912), D. ostreaeformis (Curtis 1843), D. zonatus (Frauenfeld 1868), Gonaspidiotus minimus (Leonardi in: Berlese & Leonardi 1896), Lepidosaphes beckii (Newman 1869), L. ulmi (Linnaeus 1758), Targionia vitis (Signoret 1876) i porodica Kermesidae: Kermes quercus (Linnaeus 1758), K. roboris (Fourcroy 1785) i K. vermilio Planchon 1864.U srpnju 2014. godine, zamijećeno je propadanje hrasta crnike u Poreču. Nakon što je obavljen vizualni pregled, uzeti su uzorci. Dijagnostička analiza, koja je obavljena u Laboratoriju za zoologiju Zavoda za zaštitu bilja, pokazala je da se radi o štitastoj uši crnike K. vermilio. Budući da je ovo prvi nalaz K. vermilio u Hrvatskoj, vrstu možemo smatrati novim članom hrvatske entomofaune. Ova štitasta uš napada zimzelene domaćine iz roda Quercus, ponaj­prije Quercus ilex L. Široko je rasprostranjena u zemljama Mediteranskog bazena. U prošlosti, štitasta uš K. vermilio imala je značajnu gospodarsku važnost kao izvor crvene boje za tkaninu, no danas ima status invazivnog gospodarski značajnog štetnika., Check-list of scale insects (Hemiptera: Coccomorpha) on host plants of genus Quercus L. comprises all available literature data on faunistic research of scale insects in Croatia, as well as data from the research conducted from 2005 to 2014. Published data on former faunistic research from the following authors have been used: Balachowsky (1950), Kovačević (1961), Kozár (1983), Langhoffer (1927, 1929), Lindinger (1912), Schmidt (1956, 1973) and Žak-Ogaza (1967). Each listed species was matched with a corresponding name, according to current systematics (Ben Dov et al., 2014). Following materials and methods were used in conducted research: visual inspections, collecting of plant material, storing and preservation of samples, analysis of samples under stereomicroscope, preparation of microscopic slides and identification of species. Samples were collected according to the method by Gill (1993). Analysis of collected samples was done under ZEISS Discovery V12 stereomicroscope with appurtenant AxioCam ERc5s digital camera. 70% ethyl alcohol, potassium hydroxide, lactic acid, fuchsine acid, lignin pink, acetic acid and clove oil were used in processing of scale insects’ samples. Permanent microscopic slides (photo 2) were prepared using clove oil, accordingly to Kosztarab & Kozár, 1988 and Gill, 1993. Identification of scale insect species was conducted using identification keys by Balachowsky, 1950, Borchsenius, 1960, Gill, 1993 and Pellizzari et al., 2012, compound microscope OLYMPUS BX 51 (with 4x, 10x, 20x, 40x and 100x magnification lens and 10x magnification ocular) and OLYMPUS DP25 digital camera. Based on literature data, 15 species of scale insects have been registered on oak trees (table 1). Faunistic investigation of scale insects in period from 2005 to 2014 established 12 species of scale insects. When compared to literature data, 6 new species have been registered (table 2). Currently, the check-list of scale insects on oak trees in Croatia comprises 21 species belonging to 4 families: family Asterolecanidae: Asterodiaspis ilicicola (Targioni Tozzetti 1888), A. quercicola (Bouche 1851), A. variolosa (Ratzeburg 1870), family Coccidae: Coccus hesperidum Linnaeus 1758, Eulecanium tiliae (Linnaeus 1758), Parthenolecanium rufulum Cockerell 1903, Pulvinaria sericea (Fourcroy 1785), family Diaspididae: Chionaspis etrusca Leonardi 1908, C. lepineyi Balachowsky 1928, C. salicis (Linnaeus 1758), Diaspidiotus alni (Marchal 1909), D. bavaricus (Lindinger 1912), D. ostreaeformis (Curtis 1843), D. zonatus (Frauenfeld 1868), Gonaspidiotus minimus (Leonardi in: Berlese & Leonardi 1896), Lepidosaphes beckii (Newman 1869), L. ulmi (Linnaeus 1758), Targionia vitis (Signoret 1876) and family Kermesidae: Kermes quercus (Linnaeus 1758), K. roboris (Fourcroy 1785) and K. vermilio Planchon 1864 (table 3). A. ilicicola had the highest number of appearing, followed by P. rufulum (graph 1). On host species from the genus Quercus, species from the family Diaspidide were dominant, followed by Asterolecanidae, Coccidae and Kermesidae (graph 2). In July 2014 mass occurrence of scale insect K. vermilio and symptoms of its infestation were registered on evergreen oak (Quercus ilex L.) in the town of Poreč (photo 2). Visual inspections were conducted and samples were collected. Diagnostic analysis based on morphological characteristics was carried out and it resulted in identification of scale insect K. vermilio (photo 1). K. vermilio is a new member of Croatian entomofauna, whose host plants are evergreen species belonging to the genus Quercus, primarily evergreen oak.

U sklopu faunističkih istraživanja na ukrasnom bilju u 2014. zabilježene su u urbanim sredinama dvije nove vrste lisnih uši u Hrvatskoj: lisna uš lagerstremije Sarucallis kahawaluokalani (Kirkaldy 1906) i lisna uš liriodendrona Illinoia liriodendri (Monell 1879) (Masten Milek et al., 2015; Pintar et al., 2015). Daljnjim istraživanjima lisna uš lagerstremije tijekom 2014. i 2015. zabilježena je na ovim lokacijama: Poreč, Rovinj, Šibenik, Dubrovnik, Turanj, Sakarun - Dugi otok, Dubrava-Šibenik i Vela Luka - Korčula. Lisna uš lagerstremije napada primarno biljke iz roda Lagerstroemia (L.), no može se naći i na biljkama iz roda Lawsonia (L.). Vrsta je podrijetlom iz jugoistočne Azije. Danas je široko rasprostranjena u svijetu. Lisna uš liriodendrona hrani se na biljci liriodendrona (Liriodendron tulipifera (L.)). Vrsta potječe iz Sjeverne Amerike. Također je široko rasprostranjena u svijetu. Tu lisnu uš za sada nismo zabilježili na novim lokacijama. Lisna uš lagerstremije i lisna uš liriodendrona strane su vrste za Europu (DAISIE, 2009)., Within the fanunistic investigation on ornamental plants in 2014, two new aphids were recorded in Croatia: crape myrtle aphid Sarucallis kahawaluokalani (Kirkaldy 1906) and tulip -tree aphid Illinoia liriodendri (Monell 1879) (Masten Milek et al., 2015; Pintar et al., 2015). In further investigation, during 2014 and 2015, crape myrtle aphid was found in Poreč, Rovinj, Šibenik, Dubrovnik, Turanj, Sakarun - Dugi Otok, Dubrava-Šibenik and Vela Luka - Kor čula. It feeds on ornamental plants from Lagerstroemia (L.) and Lawsonia (L.) genera. Aphid originates from Southeast Asia but has spread throughout the world. Tulip-tree aphid feeds on Liriodendron tulipifera (L.). It originates from North America. Aphid has been spreading across Europe and Asia. Till now, in Croatia it has been recorded only in Poreč. Crape myrtle aphid and tulip-tree aphid are alien to Europe (DAISIE, 2009).

Crna štitasta uš araukarije Lindingaspis rossi novi je član hrvatske entomofaune. Poznata je kao izraziti polifag. Napada brojno ukrasno drveće i grmlje te neke voćne vrste, od kojih svakako treba istaknuti maslinu i agrume. U Mediteranskom bazenu do sada je nađena u ovim zemljama: Portugal, Španjolska, Egipat, Monako, Velika Britanija, Italija i Francuska. U Hrvatskoj prvi je puta zabilježena u lipnju 2014. na Braču na palmama Phoenix canariensis i Butia capitata te na maslini. Osim o prvom nalazu ovog štetnika, rad govori i o njegovoj morfologiji, biologiji i štetama., Black araucaria scale Lindingaspis rossi is a new member of Croatian entomofauna. The pest is a distinct polyphage feeding on many ornamental trees and shrubs and some fruit species, citrus and olive in particular. So far this pest has been found in the following countries of the Mediterranean basin: Portugal, Spain, Egypt, Monaco, Italy and France. It was first found in Croatia in June 2014 on the island of Brač on palms Phoenix canariensis and Butia capitata as well as on olive trees. Apart from the first record of this pest the paper covers its morphology, biology and damage.

Recently Echinothrips americanus and Microcephalothrips abdominalis were introduced in Europe, respectively, in 1989 and 1994. Both species can be easily identified and are known from interceptions in the international trade on different ornamental hosts. E. americanus is spread mostly with Araceae and M. abdominalis is found on the intensively cultivated Tagetes. Both thrips species can occur on many ornamentals without showing obvious damage. This occurrence without damage on commercial crops and the development on weeds hampers the effectiveness of measures to prevent spread. Both are reported here new for Hungary and additionally M. abdominalis is found for the first time in Croatia. Characters and photographs for the identification of both species are given. The species are compared with some other species described within Echinothrips and Microcephalothrips.

Quaintance & Baker (1914) described the whitefly genus Pealius and designated Aleurodes maskelli Bemis, 1904 as the type species. Pealius quercus (Signoret, 1868) is a predominantly northern and central European species. It has been found in Croatia on the English oak (Quercus robur L.) in a mixed forest in Zagreb. The genus Pealius and the species P. quercus are new for the whitefly fauna of Croatia., Quaintance & Baker opisali su rod štitastih moljaca Pealius i kao tipsku vrstu roda odredili Aleurodes maskelli Bemis, 1904. Pealius quercus (Signoret, 1868) je pretežito sjeverna i srednje europska vrsta. Ta je vrsta nađena u Hrvatskoj na hrastu lužnjaku, u mješovitoj šumi u Zagrebu. Rod Pealius i vrsta P. quercus novo su zabilježeni u fauni štitastih moljaca Hrvatske.

Štitasti moljac Aleuroclava aucubae (Kuwana, 1911) [Hemiptera: Aleyrodoidea: Aleyrodidae] novo je zabilježena vrsta u fauni kukaca Republike Hrvatske. Polifagan je štetnik koji je određen kao nizak fitosanitarni rizik za uzgoj agruma u području Mediterana. Vrsta je u Hrvatskoj prvi put nađena na sadnicama limuna 2013. u Istarskoj županiji., Aleuroclava aucubae (Kuwana, 1911) [Hemiptera: Aleyrodoidea: Aleyrodidae] is an East Palearctic whitefly species. In Europe, it was reported for the first time in northern Italy in 2006. After this first finding, the species was detected in Slovenia and Montenegro (2012) and in France in 2013. A. aucubae was first found in Croatia in July 2013 on lemon seedlings (Citrus x limon) from domestic production in two nurseries in Istria. The infestation of lemon plants was low, with mostly 1 -5 puparia per leaf. Later on, it was found on several host plants in Opatija and on lemon leaves in a nursery in Zagreb as well. A. aucubae is a polyphagous insect. According to Mound & Halsey (1978), the pest has been recorded from 15 plant families, including Citrus species of the family Rutaceae. Puparia of A. aucubae are very small, elliptical and black. From the present knowledge, this new alien whitefly species apparently does not cause damage to cultivated plants. Thus, it presents a potential risk as a minor pest to citrus production in Croatia.

Vrsta štitastog moljca Aleurocanthus spiniferus Quaintance, 1903 (Hemiptera: Aleyrodidae) podrijetlom je iz jugoistočne Azije, otkuda se proširila u tropska i suptropska područja Azije, u Afriku te u područje Pacifika. Polifagan je štetnik kojemu su najvažniji domaćini biljke iz rodova Citrus, Pyres i Vitis. Štete na biljkama čine ličinke i odrasli razvojni stadiji štetnika sisanjem biljnih sokova na naličju listova te izlučivanjem obilne medne rose, na koju se sekundarno naseljavaju gljivice čađavice. Ta je karantenska vrsta u Europi prvi put nađena 2008. godine u nasadima agruma na jugu Italije, u provinciji Lecce (Porcelli, 2008). Nakon prvog nalaza u Italiji, vrsta je prebačena s EPPO A1 na EPPO A2 listu, a u Hrvatsko je sukladno EU direktivi 2000/29/EC, taj štetnik svrstan na Popis II Dio A Odjeljak I Pravilnika o mjerama za sprječavanje unošenja i širenja organizama štetnih za bilje, biljne proizvode i druge nadzirane predmete i mjerama suzbijanja tih organizama (NN 74/06). U Hrvatskoj, vrsta A. spiniferus nađena je prvi put 30. svibnja 2012. na ukrasnim sadnicama naranče (Citrus aurantium L.) iz vlastitog uzgoja, u jednom vrtnom centre u Splitu (42°30'29''N, 16°26'40"E; UTM 33T XJ 1919)., Orange spiny whitefly, Aleurocanthus spiniferus Quaintance, 1903 originated in south-east Asia and has spread widely in tropical and subtropical Asia, and into Africa and the Pacific. Citrus spp. are the main hosts of economic importance, but A. spiniferus has been recorded from woody hosts of 13 plant families. This species is listed as a quarantine threat to Europe and is included in the EU Annex IUA1 and in the EPPO A2 list. In Europe, it was reported for the first time in Italy, in 2008. In May 2012, A. spiniferus was first found in Croatia, on ornamental potted orange seedlings (Citrus x aurantium L) from domestic production in one nursery garden in Split. Infested orange plants have locally numerous small, brownish to black scales with a short fringe of white wax on the underside of leaves. The identification of the whitefly species was carried out by the Institute's Laboratory for Zoology and the result was confirmed in Plant Protection Service, Wageningen, The Netherlands. The origin of the infestation of this alien species is still unknown, but it is assumed that the infection originated from imported plant material from Italy. A. spiniferus causes general weakening of seriously infested plants due to sap loss and the growth of sooty mould. Dense colonies of whitefly immature stages develop on leaf undersides, whereas the adults fly actively when disturbed. Leaves and citrus fruits have spots of sticky, transparent honeydew, which become covered in black sooty mould fungus. A heavy infestation gives trees an almost completely black appearance. The potential host range of A. spiniferus in the EPPO region would be essentially citrus, with some possibility of establishment on other woody plantation crops growing in the southern part of the region in climatic conditions suitable for the pest. It presents a potential permanent risk to citrus in Croatia, especially to production of mandarin in Neretva river valley. For now, A. spiniferus has status of eradicated species in Croatia.

Faunistic research of whitefly species of the genus Aleurochiton Tullgren, 1907, conducted in the period 2005-2007 on maples in Croatia resulted in the recording of 3 species. The species Aleurochiton acerinus Haupt, 1934 was identified on the common maple (Acer campestre L.) at numerous Croatian inland sites. Aleurochiton aceris (Modeer) 1778 was found on Norway maple (Acer platanoides L.) in the central and northern inland part. Aleurochiton pseudoplatani Visnya, 1936 was recorded on Montpelier maple (Acer monspessulanum L.) in the northern coastal region and on sycamore maple (Acer pseudoplatanus L.) in northern coastal and continental part of Croatia., Faunistička istraživanja štitastih moljaca roda Aleurochiton Tullgren, 1907 provedena na javorima u Hrvatskoj, u razdoblju od 2005. do 2007. godine rezultirala su nalazom 3 vrste. Vrsta Aleurochiton acerinus Haupt, 1934 identificirana je na poljskom javoru (Acer campestre L.) na brojnim lokalitetima kontinentalne Hrvatske. Aleurochiton aceris (Modeer) 1778 nađen je na javoru mliječu (Acer platanoides L.) u središnjem i sjevernom kontinentalnom području. Aleurochiton pseudoplatani Visnya, 1936 zabilježen je na sredozemnom maklenu (Acer monspessulanum L.) na sjevernom obalnom području i na gorskom javoru (Acer pseudoplatanus L.) u sjevernom obalnom i kontinentalnom dijelu Hrvatske.

Na grašku je otkriven novi štetnik u Hrvatskoj - štitasta uš Peliococcus turanicus (Kiritshenko, 1931). Ova štitasta uš pronađena je na otoku Cresu. Grašak do sada nije bio registriran kao domaćin P. turanicus. Osim o prvom nalazu, rad govori o rasprostranjenosti i važnosti tog štetnika u svijetu, o njegovoj morfologiji i ekologiji., A new pest for Croatia - scale insect Peliococcus turanicus (Kiritshenko, 1931) was discovered on pea. This scale insect was found on island Cres. Pea has not been registered as a host of P. turanicus. In addition to the first finding, the paper deals with distribution and significance of this pest in the world, its morphology and ecology.

Maslinina buha pripada rodu lisnih buha Euphyllura Foerster, 1848, koji obuhvaća desetak vrsta proširenih u Mediteranskom bazenu, na srednjem istoku i u suhim područjima afrotropikalne zoogeografske regije (Burckhardt, 1994). Sve vrste se razvijaju na biljnim vrstama iz roda Olea (Toum.) L. i iz srodnih rodova porodice Oleaceae. Na maslini (Olea europaea L.) u uzgojnom mediteranskom području povremeno pričinjavaju štete 3 vrste lisnih buha. Najbolje istražena je zapadno mediteranska bivoltina iii multivoltina vrsta Euphyllura olivina (Costa., 1849). Na području istočnog Mediterana obitava vrsta Euphyllura straminea Loginova, 1973, dok je Euphyllura phillyreae Forster, 1848 vrsta koja se razvija na istim biljkama domaćinima kao i E. olivina ili E. straminea , a prisutna je na ograničenom području Mediterana. Maslinina buha - E. olivina je štetnik masline koji u Hrvatskoj uzrokuje općenito vrlo malu štetu. Populacija ovog kukca je viša u obalnom području, gdje tijekom proljeća vladaju, za njegov razvoj povoljni klimatski uvjeti, visoka zračna vlaga i umjerene temperature zraka. Maslinina buha razvija 5 - 6 generacija tijekom godine, a najštetnije su one proljetne. Napad utječe negativno na vegetativni razvoj biljke, a ličinke sisanjem oštećuju cvat masline. Suzbijanje maslinine buhe u našim područjima se ne preporučuje, osim u rijetkim slučajevima., Olive psyllid - Euphyllura olivina (Costa, 1839) is present in all Mediterranean olive-growing areas. In Croatia, it is a sporadic olive pest. The adults overwinter on the host. There are 5-6 generations of olive psyllid per year and the most damaging are the first two spring generations. Infested trees are contaminated with masses of wax and sticky honeydew (upon which sooty moulds develop) produced by larvae. Feeding may cause flowers to drop prematurely. Large populations are able to retard the growth of young trees. Psyllid activity is closely linked to the plant growth status and climatic conditions. Since in Croatia olive psyllid generally causes little damage to the olive, chemical control, except in rare cases, is not recommended. Focused application of insecticides to control this pest is usually not required if the regular control measures against the olive moth and olive fruit fly are taken. Biological activity of a number of parasitic and predatory insects that attack the olive psyllid is basically sufficient to maintain pest populations below economic threshold. Agro technical measures to reduce the pest populations and damage to the olives include quality pruning, suckers and watersprouts removal during summer and autumn-winter period, dense planting avoidance, optimum fertilization by nitrogen fertilizers and selection of an appropriate olive pruning system.

Stigmaeopsis nanjingensis (Ma & Yuan, 1980) (Acari: Tetranychidae) je orijentalna vrsta grinje, podrijetlom iz Kine. Živi i hrani se na naličju listova bambusa (Phyllostachys sp. i Pseudosasa sp.), zaštićena unutar gustih paučinastih gnijezda. Napad ovog štetnika ima za posljedicu pojavu bjeličastih, okruglih i ovalnih pjega na licu listova bambusa. U Europi su do sada na bambusu nađene dvije izvaneuropske fitofagne vrste iz porodice Tetranychidae, Stigmaeopsis celarius Banks u Nizozemskoj, Velikoj Britaniji, Belgiji i Francuskoj te vrsta Schizotetranychus bambusae Reck u Francuskoj. Vrsta S. nanjingensis je u Europi po prvi puta nađena u Italiji (Pelizzari & Duso, 2009). U Hrvatskoj, je ova vrsta detektirana na etabliranim biljkama zlatnog bambusa (Phyllostachys aurea Riviere & C. Riviere) u živoj ogradi, u vrtnom centre u Poreču (45°13'12" N; 13°40'16" E) 2011. godine. Pretpostavlja se da je štetnik introduciran u Hrvatsku uvezenim sadnicama bambusa iz Italije., Stigmaeopsis nanjingensis (Ma & Yuan, 1980) (Acari: Tetranychidae) is an oriental mite species, originated from China. The mites live and feed on the underside of bamboo leaves (Phyllostachys sp. i Pseudosasa sp.), protected under the web nests, and are recognizable by the presence of whitish-yellow round and oval spots on the upper side of leaves. The occurrence of the Asiatic mite S. nanjingensis in Europe was first reported in Italy (Pelizzari & Duso, 2009). In Croatia, the species was first detected on the established bamboo plants (Phyllostachys aurea Riviere & C. Riviere) in alive fence in the nursery garden in Pored, in 2011. Mite feeding reduces bamboo leaf areas and consequently culms become thinner and longer. As mite feeding goes on, leaves become yellow and brown, and then fall. Further investigations are needed to define the actual distribution oh this species in Croatia.

This paper deals with the scale insects Pulvinaria floccifera (Westwood, 1870), Pulvinaria hydrangeae Steinweden, 1946 and Pulvinaria vitis (Linnaeus, 1758) which were monitored during a four year faunistic investigation (2005–2008) of the genus Pulvinaria Targioni Tozzetti, 1866 in Croatia. P. hydrangeae is a newly recorded species in Croatia. Distribution (according to the UTM coordinate system) and host plants of these species in Croatia are reported. Some morphological characteristics useful to separate these three species are also given., Rad govori o vrstama štitastih uši Pulvinaria floccifera (Westwood, 1870), Pulvinaria hydrangeae Steinweden, 1946 i Pulvinaria vitis (Linnaeus, 1758) koje su utvrđene monitoringom roda Pulvinaria Targioni Tozzetti, 1866 tijekom četverogodišnjih faunističkih istraživanja u Hrvatskoj (od 2005. do 2008.). P. hydrangeae je novoregistrirana vrsta za Hrvatsku. Rasprostranjenost utvrđenih vrsta i njihovih domaćina u Hrvatskoj prikazana je prema UTM sustavu. Opisana su i neka morfološka obilježja potrebna za razlikovanje utvrđenih vrsta.

This paper deals with the scale insects Planococcus citri (Risso, 1813), Planococcus ficus (Signoret, 1875) and Planococcus vovae (Nasonov 1908) monitored during a four year faunistic investigation (2005–2008) of the genus Planococcus Ferris, 1950 in Croatia. P. vovae is a new species for Croatia. Distribution (according to UTM system) and host plants of these species in Croatia are reported. Some morphological characters useful for the differentiation of these three species are also described., Rad govori o štitastim ušima Planococcus citri (Risso, 1813), Planococcus ficus (Signoret, 1875) i Planococcus vovae (Nasonov, 1908) koje su utvrđene monitoringom roda Planococcus Ferris, 1950 tijekom četverogodišnjih faunističkih istraživanja (2005.–2008.) u Hrvatskoj. P. vovae je novoregistrirana vrsta za Hrvatsku. Rasprostranjenost utvrđenih vrsta i njihovih domaćina u Hrvatskoj prikazana je prema UTM sustavu. Opisana su i neka morfološka obilježja potrebna za razlikovanje utvrđenih vrsta.

In 2003 the Institute for Plant Protection in Agriculture and Forestry of the Republic of Croatia started a national survey of the possible occurrence of quarantine Thysanoptera species for the EU Scirtothrips spp., Thrips palmi Karny) in greenhouses in Croatia. The survey was continued yearly until 2006. This project involved the most important producers of vegetables and flowers in greenhouses and importers of potplants and cutflowers. Eventual presence of especially T.palmi was checked in glasshouses and plasticgreenhouses at 45 localities in 12 continental and 5 Mediterranean counties of Croatia. A total of 26 Thysanoptera species were recorded in the greenhouses, of which 14s species were collected from plant material, 13 were from blues sticky boards and 17 were from yellow sticky boards. Compared to the latest check list of Thysanoptera in Croatia, the following species were recorded for the first time for the country: Echinothrips americanus, Hercinothrips femoralis, Parthenothrips dracaenae and Thrips simplex. The survey did not establish the presence of EU quarantine Thysanoptera.

This paper deals with the scale insects Aulacaspis rosae (Bouché, 1833) and Aulacaspis yasumatsui Takagi, 1977 monitored during a four year faunistic investigation (2005-2008) of the genus Aulacaspis Cockerell, 1836 in Croatia. A. yasumatsui is a newly recorded species for Croatia and the fourth finding of this species in Europe. Distribution (according to the UTM system) and host plants of these species in Croatia are reported. Some morphological characters useful to differentiate the two species are also described., Rad govori o štitastim ušima Aulacaspis rosae (Bouché, 1833) i Aulacaspis yasumatsui Takagi, 1977, koje su utvrđene monitoringom roda Aulacaspis Cockerell, 1836 tijekom četverogodišnjih faunističkih istraživanja (2005.-2008.) u Hrvatskoj. A. yasumatsui novoregistrirana je vrsta za Hrvatsku i četvrti je nalaz ove vrste u Europi. Rasprostranjenost utvrđenih vrsta i njihovih domaćina u Hrvatskoj prikazana je prema UTM sustavu. Opisana su i neka morfološka obilježja potrebna za razlikovanje utvrđenih vrsta.

A check list of whiteflies in Croatia is presented, with a list of references and the results by authors from the period 2005-2007, performed for the first time in Croatia ([IMALA, 2008). In the reference list, 10 species have been described. 31 different whitefly species were identified by our own faunistic investigations, 21 of which are new for the Croatian fauna. These are the following species: Aleurochiton acerinus Haupt, 1934; Aleurochiton pseudoplatani Visnya, 1936; Aleuroclava hikosanensis Takahashi, 1938; Aleuroclava jasmini Takahashi, 1932; Aleurolobus wunni Ryberg, 1938; Aleurotuba jelinekii Frauenfeld, 1867; Aleuroviggianus adrianae Iaccarino, 1982; Aleyrodes asari Schrank, 1801; Aleyrodes elevatus Silvestri, 1934; Aleyrodes lonicerae Walker, 1852; Asterobemisia carpini Koch, 1857; Asterobemisia obenbergeri Zahradnik, 1961; Asterobemisia paveli Zahradnik, 1961; Bemisia afer Priesner & Hosny, 1934; Massilieurodes chittendeni Laing, 1928; Massilieurodes setiger Goux, 1939; Neopealius rubi Takahashi, 1954; Simplaleurodes hemisphaerica Goux, 1945; Siphoninus immaculatus Heeger, 1856; Tetraleurodes hederae Goux, 1939 and Tetralicia ericae Harrison, 1917. The check list contains 31 whitefly species from a single subfamily, Aleyrodinae, categorised in 18 genera., Pregledom literaturnih podataka i faunističkih istraživanja autora u razdoblju od 2005-2007 napravljen je prvi popis štitastih moljaca u Hrvatskoj (ŠIMALA, 2008). Pregledom literature utvrđena je prisutnost 10 vrsta. Vlastitim istraživanjima utvrđena je 31 različita vrsta štitastih moljaca, od čega je 21 nova u fauni Hrvatske. To su slijedeće vrste: Aleurochiton acerinus Haupt, 1934; Aleurochiton pseudoplatani Visnya, 1936; Aleuroclava hikosanensis Takahashi, 1938; Aleuroclava jasmini Takahashi, 1932; Aleurolobus wunni Ryberg, 1938; Aleurotuba jelinekii Frauenfeld, 1867; Aleuroviggianus adrianae Iaccarino, 1982; Aleyrodes asari Schrank, 1801; Aleyrodes elevatus Silvestri, 1934; Aleyrodes lonicerae Walker, 1852; Asterobemisia carpini Koch, 1857; Asterobemisia obenbergeri Zahradnik, 1961; Asterobemisia paveli Zahradnik, 1961; Bemisia afer Priesner & Hosny, 1934; Massilieurodes chittendeni Laing, 1928; Massilieurodes setiger Goux, 1939; Neopealius rubi Takahashi, 1954; Simplaleurodes hemisphaerica Goux, 1945; Siphoninus immaculatus Heeger, 1856; Tetraleurodes hederae Goux, 1939 i Tetralicia ericae Harrison, 1917. Popis štitastih moljaca Hrvatske sadrži 31 vrstu iz 1 potporodice, Aleyrodinae svrstane u 18 rodova.

U proljeće 2002. godine uočen je jak napad viroze žuta patuljavost ječma (BYDV) na ozimim usjevima pšenice, a posebno ječma. Te je godine ova viroza smanjila urode i do 30%. Naša istraživanja pro-vedena su sakupljanjem krilatih (alatae) forma lisnih uši. U jesen iste godine obišli smo nakon sjetve usjeve mlade usjeve ozime pšenice i ozimog ječma na 26 lokacija širom Hrvatske te sakupili isto toliko uzoraka krilatih (alatae) jedinki lisnih uši. Sakupljanje krilatih jedinki lisnih uši nastavljeno je u 2003. godini (27 lokacija) i 2004. godini (30 lokacija). Određivanje o kojim se vrstama lisnih uši radi obavili su djelatnici Zavoda za poljoprivrednu zoologiju Agronomskog fakulteta u Zagrebu. Prema tim rezultatima na mladim usjevima ozimina u jesen prevladavale su vrste Rhopalosiphum padi L., Rhopalosiphum maidis Fitch. i Sitobion avenae F.. Žuta patuljavost ječma javila se i u proljeće 2003. godine u nešto slabijem intenzitetu, a u 2004. godini ova je viroza izostala između ostalog i zbog nepovoljnih klimatskih uvjeta za rast kukuruza koji je prema našim istraživanjima glavni prelazni domaćin za lisne uši od žetve do porasta mladih usjeva ozimina u jesen., In spring of 2002 heavy infection of winter wheat and especially of barley crops with barley yellow dwarf virus (BYDV) was observed. In that year yield losses reaching 30% were established. Own investigations were made by collecting aphids on plant. In the autumn of the same year on 28 locations throughout Croatia, where heavy infections were observed, the survey of aphid species was carried out. On each location a sample of aphids (winged alatae) was taken (altogether 28 samples). The survey was continued in 2003 (27 sampling locations) and 2004 (30 sampling locations). The determination of sampled aphid species was performed by Institute of Zoology of the Faculty of Agriculture of Zagreb University. The analyses of aphid samples have shown that aphids species Rhopalosiphum padi L., Ropalosiphum maidis Fitch. and Sitobion avenae F. have been dominant on all locations. Moderate yellow dwarf virus infections were observed also in spring of 2003, but in 2004 virus infection could not be noticed, according to our finding, prevalent plant hosts of mentioned aphid species in the period from harvest till development of new winter cereal crops in autumn.