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Gunung Kinabalu is famous for its exceptionally diverse fauna and flora, rich in endemism. An example is the psyllid genus Ctenarytaina that is represented by four, apparently endemic species. Here two new Ctenarytaina species, C. lienhardisp. nov. and C. smetanaisp. nov., are described from Gunung Kinabalu. The new taxa are diagnosed, illustrated and their relationships to other species in the genus are discussed. Ctenarytaina daleae Burckhardt is redescribed. The species develops on Leptospermum species (Myrtaceae) and not Syzygium as previously suggested.

A new species of the genus Formicoccus Takahashi (Hemiptera, Coccomorpha, Pseudococcidae) collected from the holoparasitic plant Balanophora fungosa J. R. & G. Forst (Balanophoraceae), on Ishigaki Island, Japan, is described as Formicoccus yoshinoi Tanaka, sp. nov. based on the morphology of adult females. This species is similar to F. formicarius (1900) and F. erythrinae Williams, 2004, but differs from them by having fewer than six cerarii, and only one type of ventral oral collar tubular duct distributed on the medial area of the posterior abdominal segments. Keys to the Oriental species of the genus Formicoccus are provided.

International audience; Aleuroclava aucubae (Kuwana) (Hemiptera : Sternorrhyncha : Aleyrodidae), native to Japan, has been recorded for the first time in Hungary. Several individuals of the species were found on various ornamental plants (Celtis, Fraxinus, Morus, Sorbus, Ulmus) at five locations in the country in 2014 and 2018.The currently known distribution and host associations of the species are briefly discussed, along with an annotated checklist of the whitefly fauna of Hungary.

A new species of spiroplasmid, Spiroplasma burmanica sp. nov. (Mollicutes: Entomoplasmatales: Spiroplasmataceae) is described from the body cavity of a fossil plant louse (Psylloidea: Sternorrhyncha) in Burmese amber. The new species is pleomorphic with body shapes varying from oval to helical. The majority of the helical cells occur in the head, thorax (including leg cavities) and abdomen of the fossil psyllid. The association between S. burmanica and the psyllid is considered to be a case of symbiosis, similar to extant relationships. This discovery of the first fossil spiroplasmid shows that psyllids carried these microorganisms some 100 million years ago.

We reviewed the diversity and distribution of the gall-forming aphids of the genus Pemphigus developing on poplars in Eastern Siberia. As a result, the checklist of this group was compiled comprising 13 species distributed in this macroregion that accounts about 29% of the world's known poplar-feeding Pemphigus species. Biogeographical and host plant data are provided for all listed species. Pemphigus birimatus Ivanovskaja, Pem. laurifoliae Dolgova, and Pem. matsumurai Monzen were documented for the first time in the Republic of Tuva. In addition, the latter two species were also discovered in the Republic of Buryatia and Zabaikalskii Krai, respectively. Two poplars Populus × sibirica and Pop. laurifolia were recorded as novel hosts for 3 Pemphigus species. The origin of Pem. passeki Borner, Pem. spyrothecae Passerini, and Pem. microsetosus Aoki in Eastern Siberia remains unclear. Four species Pem. populi Courchet, Pem. bursarius (Linnaeus), Pem. matsumurai, and Pem. spyrothecae Lichtenstein cause noticeable damage to poplars in man-made plantations.

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).

A new family, genus and species of scale insect is described from mid-Cretaceous Burmese amber. The male specimen of Macrodrilus bostrychus gen et sp. nov. in the new family Macrodrilidae (Hemipter...

Six Japanese species of the genus Pulvinaria Targioni Tozzetti (Hemiptera: Coccomorpha; Coccidae): P. aurantii Cockerell, 1896, P. hazeae Kuwana, 1902, P. idesiae Kuwana, 1914, P. kuwacola Kuwana, 1907, P. nipponica Lindinger, 1933 and P. photiniae Kuwana, 1914, are redescribed and illustrated based on type specimens and some newly collected adult females. In addition, Pulvinaria decorata Borchsenius, 1957 syn. nov. and P. ornata Froggatt, 1921 (nec Hempel, 1912) syn. nov. are proposed as new junior synonyms of P. aurantii, and Pulvinaria fujisana Kanda, 1960 syn. nov. and P. hydrangeae Steinweden, 1946 syn. nov. are proposed as new junior synonyms of P. kuwacola. Lectotypes are designated for P. idesiae, P. nipponica and P. photiniae from the syntypes of these species and, in the absence of any original material, neotypes are designated for P. hazeae and P. kuwacola, respectively, using specimens collected from the type localities. To facilitate comparisons, a table containing diagnostic morphological character states of the redescribed species and the type species of the genus, P. vitis (Linnaeus, 1758), is provided.

A new genus of Chamaemyiidae (Diptera: Lauxanioidea) is described, namely Leucotaraxis gen. nov. (type species Leucopis atrifacies Aldrich; other included species Leucotaraxis argenticollis (Zetterstedt), comb. nov., Leucotaraxis piniperda (Malloch), comb. nov., and Leucotaraxis sepiola sp. nov.). These species are predators of Adelgidae (Hemiptera) infesting Pinaceae. Leucotaraxis argenticollis is Holarctic, while the other three species are Nearctic. The phylogeny of Leucotaraxis with other representatives of Chamaemyiidae was elucidated using mitochondrial and nuclear DNA sequences and the genus was found to be monophyletic. Egg and puparial stages are discussed or described and illustrated for all species except Leucotaraxis sepiola. A key is provided to all species of Chamaemyiidae known to attack Pinaceae-infesting Sternorrhyncha, an annotated list of these taxa is provided, and a habitus photograph is provided for each genus with such species. In addition, a lectotype is designated for Leucopis olivacea Meijere, and it is synonymized under Neoleucopis obscura (Haliday), syn. nov.

Acacia mangium is a pioneer species with fast growth and frequently used in the recovery of degraded areas. The objectives were to evaluate insects and spiders, their ecological indices and interactions on A. mangium saplings in a tropical degraded area in recovering process. The experimental design was completely randomized with 24 replications, with treatments represented by the first and second years after A. mangium seedling planted. Numbers of leaves/branch, branches/sapling, and ground cover by A. mangium saplings, Hemiptera: Phenacoccus sp. and Pachycoris torridus; Hymenoptera: Tetragonisca angustula and Trigona spinipes, Brachymyrmex sp., Camponotus sp. and Cephalotes sp.; Blattodea: Nasutitermes sp. and Neuroptera: Chrysoperla sp.; abundance, species richness of pollinating insects, tending ants, and the abundance of Sternorrhyncha predators were greatest in the second year after planting. Numbers of Hemiptera: Aethalium reticulatum, Hymenoptera: Camponotus sp., Cephalotes sp., Polybia sp., T. angustula, T. spinipes, tending ants, pollinating insects, Sternorrhyncha predators and species richness of tending ants were highest on A. mangium saplings with greatest numbers of leaves or branches. The increase in the population of arthropods with ground cover by A. mangium saplings age increase indicates the positive impact by this plant on the recovery process of degraded areas. Resumo Acacia mangium é uma espécie pioneira, de rápido crescimento e utilizada na recuperação de áreas degradadas. Os objetivos foram avaliar insetos e aranhas, seus índices ecológicos e interações com plantas de A. mangium em área tropical degradada em processo de recuperação. O delineamento experimental foi inteiramente casualizado com 24 repetições, com os tratamentos representados pelos primeiro e segundo anos após a plantio de A. mangium. Os números de folhas/galhos, galhos/plantas e cobertura do solo por plantas de A. mangium, de Hemiptera: Phenacoccus sp. e Pachycoris torridus; Hymenoptera: Tetragonisca angustula e Trigona spinipes, Brachymyrmex sp., Camponotus sp. e Cephalotes sp.; Blattodea: Nasutitermes sp. e Neuroptera: Chrysoperla sp.; a abundância, riqueza de espécies de insetos polinizadores, formigas cuidadoras e a abundância de predadores de Sternorrhyncha foram maiores no segundo ano após o plantio. Os números de Hemiptera: Aethalium reticulatum, Hymenoptera: Camponotus sp., Cephalotes sp., Polybia sp., T. angustula, T. spinipes, formigas cuidadoras, insetos polinizadores, predadores de Sternorrhyncha e a riqueza de espécies de formigas cuidadoras foram maiores em plantas de A. mangium com maior altura e número de folhas ou galhos. O aumento populacional de artrópodes e da cobertura do solo com o processo de envelhecimento das plantas de A. mangium indicam impacto positivo dessa planta na recuperação de áreas degradadas.

The sequences generated in this study were deposited in GenBank (Accession number: MW021146–MW021160).; International audience; The Asian citrus psyllid, Diaphorina citri, is a major threat to citrus production worldwide, as it transmits 'Candidatus Liberibacter asiaticus', the pathogen associated with the devastating Asian form of huanglongbing. The psyllid has spread widely from its native South Asia during the past 300 years, most recently to Africa. We report the first population genomic analyses of D. citri in Kenya and La Reunion based on next-generation sequencing of their mitochondrial genomes. We analyzed mitochondrial sequences of 264 D. citri individuals to establish genetic relationships among accessions from D. citri populations from Asia, North America and Africa. Haplotype network analysis indicated that the psyllids from Kenya were genetically close to an accession from Cambodia, and distinctly different to those from La Reunion. These findings revealed populations in southern Indochina would be the likely source of the D. citri introduction into East Africa through human-mediated transfer of psyllid-infested plants.

Members of the scale insect family Ortheziidae (Hemiptera: Sternorrhyncha: Coccomorpha) occur all over the world but these small, delicate insects are difficult to find. The largest genus in the Ortheziidae is Newsteadia Green. Previous studies have recorded four species of Newsteadia in China. This study describes and illustrates the adult female, male, prepupal male, and first-, second- and third-instar nymphs of a fifth species, Newsteadia fanjingensis sp. n., from Guizhou Province, China, collected above 2000 m altitude under thick moss on the bark of Acer sp. Identification keys are provided to the adult females of Newsteadia species known in China, and the adult males known worldwide.

The scale insects (infraorder Coccomorpha) are the most morphologically specialised members of the Hemiptera. They form a monophyletic group within the suborder Sternorrhyncha, having one-segmented tarsi and a single claw (all other hemipterans have a double claw). They show extreme sexual dimorphism: the more-or-less sessile adult females are wingless and larviform, whereas the motile adult males mostly are winged and lack mouthparts. Within the Coccomorpha, 54 families are currently recognised, of which 20 are known only from fossils and 34 are extant (García Morales et al. 2016).

Liu, X., Qiao, G.X., Yao, Y. & Ren, D., 28 March 2019. A new species of the aphid family Burmitaphididae (Hemiptera: Sternorrhyncha: Aphidomorpha) from Upper Cretaceous Burmese amber. Alcheringa 43...

A new genus Sinicoselis gen. nov., with new species Sinicoselis weberi gen. and sp. nov. is described from Middle-Upper Jurassic, Daohugou Bed, Inner Mongolia, China. It is the oldest representative of whiteflies placed in the subfamily Bernaeinae. Its morphological features and taxonomic position with respect to other aleyrodids from the subfamilies Bernaeinae and Udamoselinae are briefly discussed.

The Canadian Hemiptera (Sternorrhyncha, Auchenorrhyncha, and Heteroptera) fauna is reviewed, which currently comprises 4011 species, including 405 non-native species. DNA barcodes available for Canadian specimens are represented by 3275 BINs. The analysis was based on the most recent checklist of Hemiptera in Canada (Maw et al. 2000) and subsequent collection records, literature records and compilation of DNA barcode data. It is estimated that almost 600 additional species remain to be discovered among Canadian Hemiptera.

Mitrapsylla rupestrissp. nov., associated with Poiretia bahiana C. Mueller (Fabaceae, Faboideae, Dalbergieae), is described, diagnosed and illustrated. The new species is morphologically similar to M. aeschynomenis, M. aurantia, M. cubana and M. didyma from which it differs in details of the terminalia and the host plant. Poiretia constitutes a previously unknown psyllid host. As its host, Mitrapsylla rupestrissp. nov. is probably endemic to rock habitats of the Espinhaço Range in eastern Brazil. These rock habitats display a high species diversity but are seriously threatened by human activities. More research on these habitats is urgently needed to design efficient conservation strategies.

Five species of obligatorily myrmecophilous aphids of two subfamilies were found in south-eastern Belarus during studies conducted in 2018–2020. The species Stomaphis quercus (L., 1758) is new for the Belarus aphid fauna. The vast majority of aphids in this group are holocyclic dendrophilous species. Only one species of herbophilous aphid Paracletus cimiciformis von Heyden, 1837 in Belarus is represented by an anholocyclic clone.

A new species, Kermicus huizhouensis Wu & Huang sp. n. (Hemiptera: Coccomorpha: Pseudococcidae), is described and illustrated based on the adult female, second instar female and first-instar nymph. It was collected at Qianfeng village, Huiyang District, Huizhou City, Guangdong Province, P. R. China, inside the stem of bamboo Bambusa rigida (Poaceae) and attended by the ant Tetraponera binghami (Forel) (Hymenoptera: Formicidae). It differs from K. wroughtoni Newstead, 1897 by the adult female lacking multilocular disc pores in the marginal region of the venter, and both the adult female and first-instar nymph having the anal ring bearing 16–20 setae. Keys to genera of legless mealybugs on bamboo based on adult females, and the immature stages of Kermicus, are provided.

A new genus and species of scale insect (Hemiptera: Coccomorpha) is described from a female specimen in mid-Cretaceous Burmese (Myanmar) amber. Fossil female scales are rare and the present species, described as Paleolepidotus macrocolus gen. et sp. n., has such an unusual assortment of morphological features that it could not be assigned to any particular extant or extinct family. The small, ferruginous specimen exhibits a series of long wax pencils that extend around the body, including the head. The antennae and legs are quite long compared to other extant and extinct scale fossils. Of special interest are the protruding eyes, and a conical-triangular rostrum arising from between the forelegs; the claws with bifid apices are also unique. The ovisac contains immature stages.

The Neotropical species of the predominantly north temperate genus Aphalara are reviewed. Four species are recorded here from this region, two of which are described as new. Aphalara ritterisp. nov. occurs in southern Brazil (Paraná, Rio Grande do Sul, Santa Catarina) and represents the first and only species reported from South America. A second new species, Aphalara ortegaesp. nov., is described from Mexico and Puerto Rico. Another two species, Aphalara persicaria Caldwell, 1937 and A. similaCaldwell, 1937, have been previously reported from Mexico and the USA, and one of them also from Cuba. The two new species are both associated with Persicaria hydropiperoides and P. punctata (Polygonaceae) on which the immatures induce leaf roll galls. The two new species are morphologically similar to A. persicaria, to which they are probably closely related. A key is provided for the adults and immatures of the Neotropical species of Aphalara.

Anomoneura taiwanicasp. nov. (Hemiptera, Psylloidea, Psyllidae, Psyllinae) is described based on samples from Taiwan that were previously misidentified as A. mori Schwarz, 1896. Morphological and genetic differences between the two species, as well as their distribution, are detailed and discussed. Comments on the pest status of Anomoneura spp. in East Asia are also provided.

The detection of Deraeocoris orientalis (Distant) [Heteroptera: Miridae] from Oahu and Maui, Hawaii, provides the first Hawaiian and U.S. records for this deraeocorine plant bug, which becomes the first member of the mainly predatory subfamily Deraeocorinae recorded from the state. A Neotropical psyllid, Euceropsylla orizabensis (Crawford) [Auchenorrhyncha: Psyllidae], from Oahu was found with D. orientalis at several sites, also is a new addition to Hawaii and the U.S. fauna. A few specimens of another Neotropical psyllid, Heteropsylla hausachae Caldwell, previously recorded from Hawaii, also were associated with D. orientalis. Both psyllids probably serve as prey for the mirid. Diagnoses, descriptions, and illustrations of the adult male and female of D. orientalis and E. orizabensis are provided to facilitate identification of these newly discovered hemipterans. Adults and nymphs of both species, along with H. hausachae, were found on monkeypod, Pithecellobium dulce (Roxb.) Benth. [Fabaceae] on Oahu.

The endemic Hawaiian genus Swezeyana Caldwell, 1940 is highly distinctive due to the extremely long genal processes. In addition, some of the immatures are ornamented with extraordinary tubercles and tentacles. Two Swezeyana species are redescribed, and seven new species are described, bringing the total number of species in the genus to nine. All species are hosted by a single, endemic host plant, Planchonellasandwicensis (Sapotaceae), which is distributed across all major islands in the archipelago. The majority of Swezeyana species are single island endemics. A sister taxon pair is found sympatrically on the same individual plants on Kauai, and putative sister or at least closely related species are also found sympatrically on Oahu and Hawaii, suggesting these taxa may have diversified in sympatry. However, there is no observed ecological niche partitioning, despite some striking morphological diversity, as all Swezeyana species have free-living immatures that are found on the leaf surface, and therefore no apparent biological shifts are coincident with occupying the same host plant. Two species groups are represented by strikingly different female terminalia structure and endoskeletal development, although ovipositor structure is very similar between the two groups. Mitochondrial DNA barcodes (COI and cytB) are provided for eight of the nine species. A phylogenetic analysis of the mitochondrial barcode regions indicates species relationships within Swezeyana and provides a comparison of genetic divergence with other Hawaiian endemic genera.

The plant-louse subfamily Miralinae, as a bizarre extinct psylloid lineage displaying some unique body structures and wing characteristics, was recently erected on the basis of the monotypic genus Mirala reported in mid-Cretaceous Kachin amber of northern Myanmar. Herein, Burmala liaoyaoi gen. et sp. nov., as the second genus and species of Miralinae, is described and illustrated from the same amber biota. The new genus is discriminated from Mirala by possessing elongate compound eyes, lateral ocelli close to anterior margin of compound eyes, and forewings with the wing tip at ending of vein M, very thick and long bScP, complete CuA2 and CuP, etc. Our new finding provides additional morphological information for the intriguing Miralinae, further adding the biodiversity and disparity of this plant-louse subfamily.

SummaryBecause correct identification of insects is crucial for pest management involving chemical or biological control agents, we have used a molecular approach to identify and characterize specimens of the cotton pest Phenacoccus solenopsis Tinsley (Sternorrhyncha: Pseudococcidae) present in different regions of Pakistan. The specimens were analyzed through DNA sequence analysis of their mitochondrial COI (mtCOI) gene using an improved procedure that could distinguish between the pest and its associated parasitoid. Our analysis showed no variation among the mealybug specimens from different geographical locations of Pakistan and confirmed that this is the same species and haplotype that is infesting cotton plants in other parts of Asia. This information will assist in the development of biological control programs against P. solenopsis in Pakistan and other Asian countries.

A taxonomic and nomenclatural catalog of the phylloxerids (Hemiptera, Phylloxeridae) is presented. Six family-group names are listed, three being synonyms. Thirty-five genus-group names, of which six are subjectively valid, are presented with their type species, etymology, and grammatical gender. Ninety-four species-group names are listed, of which 73 are considered subjectively valid. This is the last group of Aphidomorpha to be catalogued, bringing the list of valid extant species to 5,218.

A new species of soft scale (Hemiptera: Coccomorpha; Cocccidae) from South Africa, Coccus giliomeei Łagowska & Hodgson sp. n., collected on Gymnosporia buxifolia (L.) Szyszyl, is described and illustrated. Also, Coccus rhodesiensis (Hall) is recorded for the first time from South Africa and is redescribed and illustrated based on the adult females of the type series and fresh South African specimens. An updated key to the species of Coccus and similar species known from Africa is included. Based on this latter study, (i) Marsipococcus proteae (Brain) and M. durbanensis (Brain) are considered not to be congeneric with Marsipococcus marsupialis (Green), the type species of Marsipococcus Cockerell & Bueker, and are placed in a new genus Proteacoccus Łagowska & Hodgson, gen. n. with Lecanium proteae Brain as the type species; (ii) it is considered that Coccus asiaticus Lindinger is clearly not a junior synonym of Parasaissetia nigra (Nietner) and is accepted as a full species, rev. stat., and (iii) Neoplatylecanium adersi (Newstead) is considered to be non-conspecific with N. cinnamomi Takahashi, the type species of Neoplatylecanium Takahashi, and is transferred to Maacoccus Tao & Wong, as Maacoccus adersi (Newstead), comb. n.

A new species of Rhinoleucophenga Hendel from the Brazilian Amazon, R. hesperides sp. nov., was described based on morphology of male and female specimens. The larvae are predators of the eggs and adult females of ensign scales Praelongorthezia praelonga (Douglas) (Hemiptera: Sternorrhyncha: Ortheziidae). Female P. praelonga also serve as a source of honeydew for adult R. hesperides sp. nov. In addition, the puparium of this species was described.

Insects are the most diverse and abundant group, comprising 95% of the animal clade. The bacteria domesticate the host and can potentially serve numerous purposes of the host. Insects of the suborder Sternorrhyncha of order Hemiptera feed on plant sap. These exhibit types of endosymbiosis, from obligate mutualism to facultative parasitism. Many beneficial services are given to the sap sucking host insect by bacterial endosymbionts, supply of nutrition, mainly the essential amino acids is one of them. Here we are discussing nutritional function of endosymbionts of hemipteran host.

A recent DNA-based assessment of the psyllid fauna of New Zealand recorded high genetic variation between populations that were expected to belong to the same psyllid species. Among these, a number of populations of the kōwhai psyllid Psylla apicalis (Ferris & Klyver, 1932), from a kōwhai species, Sophora microphylla Aiton (Fabaceae), presented high genetic variability. This gave new endorsement of an 87-year-old observation made by the entomologists Ferris and Klyver who, when describing the kōwhai psyllid, from Sophora tetraptera J.S. Muell., suggested that morphological variations could support more than one species. Accordingly, the morphological assessment conducted here, together with the genetic information now available, resulted in the description of Psylla frodobagginsi sp. nov. as a second New Zealand endemic psyllid species hosted by S. microphylla.

An updated aphid (Hemiptera, Aphidomorpha) check-list of Murmansk province (European Russia) is presented, it includes 162 species. Chaitophorus nigricantis Pintera, 1987, Schizaphis nigerrima (Hille Ris Lambers), Hyperomyzus (Neonasonovia) zirnitsi Hille Ris Lambers, Nasonovia (Kakimia) vannesii Stenseth, Plocamaphis flocculosa goernitzi Börner and Schizaphis graminum gigjai Stroyan are recorded for the first time from Russia. Both apterous and alate males of Chaitophorus nigricantis nigricantis Pintera are described. Two new aphid species are described: Aphis khrulevi sp. nov. from fundatrices and apterous viviparous females, living on Veronica longifolia and Dysaphis karyakini sp. nov. from apterous and alate viviparous females, oviparous females and males, living on Cenolophium denudatum. Comments about the distribution and biology of aphids in this Northern part of Europe, and on the completeness of the list are given.

A new felt scale species, Rhizococcus avicennae sp. nov. (Hemiptera: Sternorrhyncha: Coccomorpha: Acanthococcidae), is described and illustrated based on adult females collected in Hamadan province, Iran. The new species resembles Rhizococcus desertus (Matesova, 1957) originally described from Kazakhstan and differs from the latter in having cruciform pores on the venter of the head, thorax, and abdominal segments I and II; in lacking frontal lobes and the frontal tubercle on the head; in the presence of flagellate setae on the ventral submargin and macroducts in three sizes on the venter and dorsum. The females of R. avicennae sp. nov. were found at the bases of leaves of an unidentified species of grass (Poaceae). An identification key to the species of Rhizococcus Signoret, 1875 currently known from Iran is presented.

Four new protopsyllidioid species, Paraprotopsyllidium spinosum gen. et sp. nov., Angustipsyllidium minutum gen. et sp. nov., Burmapsyllidium setosum gen. et sp. nov., and Maliawa akrawna gen. et sp. nov. are described from the mid-Cretaceous Burmese amber, and assigned to a new family, Paraprotopsyllidiidae fam. nov., that we establish. These taxa are characterized by their narrowed fore and hind wings, bearing a fringe of long setae; the possible functions of these bristles are explored in this paper. The population dynamics, the potential diet and feeding behavior and the biogeographical distribution of this family are briefly discussed.

Whiteflies are abundant and highly diverse in mid-Cretaceous Kachin amber, but only three taxa have been reported to date: Burmoselis evelynae and Paraburmoselis kachinensis in the extinct subfamily Bernaeinae, and ‘Aleurodicus’ burmiticus with generic and subfamilial assignment doubtful. A new genus and species, Burmodicus cretaceus gen. et sp. nov., is herein described and illustrated on the basis of a new whitefly in Kachin amber, and the new taxon is tentatively assigned to the subfamily Aleurodicinae. In addition, the nomenclature, homology and evolution of aleyrodid wing venation are briefly discussed.