Search

We use DNA sequence data to generate the first phylogenetic hypothesis for the weevil tribe Lymantini. These are leaf litter inhabiting beetles generally regarded as restricted to the New World and taxonomically arranged in two subtribes, 11 genera and some 150 named species. An additional genus of questionable affinities to the tribe, Devernodes Grebennikov, 2018, has five described species in Southeastern Asia. All these beetles are flightless and some have eyes reduced in size or absent, traits normally associated with limited dispersal capacity. We performed a phylogenetic analysis of 153 terminals (50 of them belong to Lymantini representing Devernodes and all but three named genera) based on 4,174 bp alignment of one mitochondrial (cox1) and two nuclear fragments (ITS2 and 28S). We find that both Lymantini subtribes Lymantina and Caecossonina are monophyletic, the latter sister to the amphi-Atlantic tribe Anchonini. The Asian genus Devernodes is deeply nested among American Lymantina. The clade of Anchonini plus Lymantini is consistently recovered outside of the CCCMS clade of “higher” weevils (Curculioninae, Conoderinae, Cossoninae, Molytinae and Scolytinae). We hypothesize that the polished head capsule of adult beetles is an apomorphy of Anchonini and Lymantini, the 8-segmented antennal funicle is an apomorphy of Anchonini plus Caecossonina. We attribute the origin of the currently observed amphi-Pacific distribution of Lymantina to normal ecological dispersal facilitated by the warmer periods of the Cenozoic such as the Eocene, and by presently submerged Arctic land bridges. Using parsimony we hypothesize a North American origin for the Anchonini plus Lymantini crown group, as well as that of Lymantina. We argue that Bronchotibia adunatus Poinar & Legalov, 2021, a Dominican amber adult weevil fossil, is not a member of Lymantini and re-classify it as Curculionidae incertae sedis. We present an image gallery of 28 Lymantini specimens to document the morphological diversity of the tribe. We hypothesize the existence of unnamed American genera of Lymantina and make public the DNA-barcode dataset of 89 Lymantini specimens.

Corrigendum to “A new hypothesis on the evolution of the hybosorid beetle capacity to conglobate their bodies into a tight ball (Coleoptera: Scarabaeoidea)”, Fragmenta entomologica, Vol. 54 No. 1 (2022)

Melanophilharmostes tuber Grebennikov, new species Figs 1���5. Type locality. Cameroon, Mt. Cameroon, 4.0681��N, 9.0717��E, 233m. Type material. Holotype (deposited in the Canadian National Collection of Insects, Arachnids, and Nematodes, Ottawa, Canada), female, ��� CAMEROON, Mt. Cameroon, 4.0681, 9.0717, 233m, 28.xii.2015, sift. CM09, V. Grebennikov.���, ���CNCCOLVG00009477���. Paratype (deposited in the Canadian National Collection of Insects, Arachnids, and Nematodes), not sexed, ��� CAMEROON, Mt. Kupe, 4.8193, 9.7075, 1525m, 29.xii.2015, sift. CM13, V. Grebennikov.���, ���CNCCOLVG00009488���. Description. Holotype maximal body length (in rolled position, Fig. 1A): 2.5 mm (paratype: 2.5 mm), maximal body width (Fig. 1): 2.2 mm (paratype: 2.3 mm). Head distinctly convex, clypeal disc gibbose. Interocular bridge completely subdividing each eye into smaller dorsal and larger ventral parts (Fig. 2E); antenna with seemingly 10 antennomeres (Fig. 2F, not dissected to make exact count); head, pronotum, and elytra with deep and dense microsculpture (horseshoe-shaped and comma-shaped), as well as with sparse, short, and distinct pilosity; surface of pronotum uneven, with bumps and depressions (Fig. 2A); each elytron with notable lateral longitudinal sharp carina interrupted in posterior part (Figs 2B, D); hind wings fully developed; distal fork of vein CuA present; distal expansion of vein MP 1+2 cannot be verified using single available wing (Fig. 2D). Male genitalia unknown. DNA data of holotype: MW899169 (COI) and MW845067 (28S); DNA data of paratype: MW899176 (COI), MW845087 (ITS2), and MW845074 (28S). Diagnosis. Within the Synarmostes group of four Afrotropical genera (including Madagascar and Comoros), this species can be immediately recognised by any of its four diagnostic characters: (1) head distinctly convex with clypeal disc gibbose (Fig. 2F), (2) bumpy pronotum, (3) notably developed longitudinal carina on each elytron, and (4) deep and dense microsculpture on the head, pronotum, and elytra. Distribution. This species is known from two Cameroonian localities about 100 km apart: Mt. Cameroon (233 m) and Mt. Kupe (1523 m). Natural History. Both specimens were collected by sifting forest leaf litter in rainforest. Derivation of name. The species epithet is the Latin noun meaning ���a hump, bump, swelling, protuberance���, with reference to the peculiarly bumpy pronotum of the new species distinguishing it from all its congeners; it is used as a noun in apposition., Published as part of Grebennikov, Vasily V., 2022, Phylogenetic placement of a new Melanophilharmostes Paulian, 1968 pill scarab (Coleoptera: Hybosoridae: Ceratocanthinae) from Cameroon: molecular results decipher misleading morphology, pp. 441-450 in Zootaxa 5087 (3) on page 446, DOI: 10.11646/zootaxa.5087.3.3, http://zenodo.org/record/5826878

Melanophilharmostes Paulian, 1968 Type species: Philharmostes (Melanophilharmostes) zicsii Paulian, 1968, by original designation. Composition and distribution: 17 named species (including the one described below) from sub-Saharan Africa and the Gulf of Guinea island of Annob��n. Monophyly, sister group, and morphological synapomorphies: the genus formed a moderately supported clade in both the morphology-based (Ballerio 2016) and DNA-based (Fig. 5) analyses. Its three morphological synapomorphies (Ballerio 2016) are (1) dorsal body surface with setae, (2) larger elytral punctures are ���large horseshoe-shaped���, and (3) elytra with a lateral carina. In both analysis the genus formed either moderately (Ballerio 2016) or weakly-supported (Fig. 5) sister group to the genus Pseudopterorthochaetes; the only morphological synapomorphy of both genera is that the dorsal puncture on the head is shallow (not deep; Ballerio 2016). Two hind wing characters seem to additionally support the Melanophilharmostes and Pseudopterorthochaetes clade (presence of distal fork in vein CuA and presence of the distal expansion of vein MP 1+2; characters 15/1 and 16/1, respectively, in Ballerio 2016; see also Fig. 2D); however, ambiguity remains due to the widespread loss of hind wings within this clade. The genus Pseudopterorthochaetes was recovered either as a moderately-supported (Ballerio 2016) or strongly-supported clade (Fig. 5) with a single morphological autapomorphy: the inner mesotibial apical spur in males is parallel to the tibial axis (not bent inwards at a right angle, as in Melanophilharmostes and most other pill scarabs)., Published as part of Grebennikov, Vasily V., 2022, Phylogenetic placement of a new Melanophilharmostes Paulian, 1968 pill scarab (Coleoptera: Hybosoridae: Ceratocanthinae) from Cameroon: molecular results decipher misleading morphology, pp. 441-450 in Zootaxa 5087 (3) on page 445, DOI: 10.11646/zootaxa.5087.3.3, http://zenodo.org/record/5826878

Aside: Cleonini are not universally flightless Regardless of whether the tribe is monophyletic or not, some Cleonini species do actively fly. This is, however, a poorly documented and rarely observed phenomenon, which misled Arzanov & Grebennikov (2017) into the erroneous conclusion that all Cleonini are flightless. Active flight has been reported for at least three economically important species: Asproparthenis punctiventris (Germar, 1823) (e.g., Orlachiova 1956; Auersch 1961; Tóth et al. 2006), Bothynoderes affinis (Schrank, 1781) (Kokovikhin 1966), and Temnorhinus brevirostris (Gyllenhal, 1834) (Brunner 1959). Meregalli (2005) reported flight in Eurycleonus talamellii Meregalli, 2005. One of us (BI) observed in Mongolia active flight of, likely, Conorhynchus conirostris Gebler, 1829. Robert Stejskal (personal communication) observed in central Europe active flight of Bothynoderes affinis, Asproparthenis punctiventris, Cleonis pigra, and Cyphocleonus dealbatus Gmelin, 1790., Published as part of Volovnik, Semyon V., Boldgiv, Bazartseren, Iderzorig, Badamnyambuu, Khobrakova, Larisa Ts., Kolov, Sergey V., Rudykh, Sergey G., Zabaluev, Ilya A. & Grebennikov, Vasily V., 2021, The first molecular phylogeny of the weevil subfamily Lixinae (Coleoptera Curculionidae) casts doubts on the monophyly of its tribes, pp. 201-220 in Zootaxa 5026 (2) on page 216, DOI: 10.11646/zootaxa.5026.2.3, {"references":["Arzanov, Yu. G. & Grebennikov, V. V. (2017) Cleonini (Coleoptera: Curculionidae: Lixinae) are monophyletic and flightless: tribe overview, rampant adult homoplasy and illustrated global diversity. Zootaxa, 4329 (1), 1 - 63. https: // doi. org / 10.11646 / zootaxa. 4329.1.1","Orlachiova, K. A. (1956) Faktory, opredelyayushchie perelioty zhukov sveklovichnogo dolgonosika. In: Vasiliev, V. P. (Ed.), Sveklovichnyi Dolgonosik i Borba s Nim. Sbornik Nauchnykh Trudov Instituta Entomologii i Fitopatologii AN USSR. Vol. 7. Akademia Nauk USSR, Kiev, pp. 158 - 194 [in Russian].","Auersch, O. (1961) Zur Kenntnis des Rubenderbrusslers (Bothynoderes punctiventris Germ.). Teil 2. Zeitschrift fur Angewandte Entomologie, 49, 50 - 77. https: // doi. org / 10.1111 / j. 1439 - 0418.1961. tb 02855. x","Toth, M., Ujvary, I., Sivcev, I., Imrei, Z., Szarukan, I., Farkas, O., Gomory, A., Gacs-Baitz, E. & Francke, W. (2006) An aggregation attractant for the sugar-beet weevil, Bothynoderes punctiventris. Entomologia Experimentalis et Applicata, 122, 125 - 132 https: // doi. org / 10.1111 / j. 1570 - 7458.2006.00502. x","Kokovikhin, A. I. (1966) K biologii Chromoderus fasciatus Mull. (Coleoptera, Curculionidae) v stepnoy zone Omskoi oblasti. In: Cherepanov, A. I. (Ed.), Fauna i Ekologija Chlenistonogikh Sibiri. Nauka - Sibirskoe otdelenie, Novosibirsk, рp. 29 - 32. [in Russian]","Brunner, Yu. N. (1959) Samarkandskyi sveklovichnyi dolgonosik. In: Savchenko, E. N. (Ed.), Sveklovodstvo. Vol. 3. Gosselkhozizdat USSR, Kiev, pp. 135 - 136. [in Russian]","Meregalli, M. (2005) Eurycleonus talamellii n. sp. of Cleonine weevil from the Moroccan desert (Coleoptera: Curculionidae: Lixinae: Cleonini). Zootaxa, 1053 (1), 23 - 34. https: // doi. org / 10.11646 / zootaxa. 1053.1.2"]}

Sampling of Lixinae Most herein analysed specimens of Lixinae were sampled during our fieldwork in Kazakhstan, Mongolia, Russia and Ukraine; the remaining specimens were accumulated through a network of correspondents (see Acknowledgements). All Cleonini specimens sampled by us were either hand-picked during the daytime from under items lying on the ground (mainly dry dung of domesticated ungulates, Fig. 2L)), or caught in unbaited pitfall traps; a few specimens were picked when walking on the ground or reared from root galls (Fig. 2J). Conversely, all Lixini and Rhinocyllini specimens were swept or hand-picked from vegetation. All specimens sequenced herein (including the outgroup) are deposited in the Canadian National Collection of Insects, Arachnids, and Nematodes (Ottawa). Images and geographic data of each specimen reported in this work, either of Lixinae or non-Lixinae, are available online in the Barcode of Life Data System (BOLD, Ratnasingham & Hebert 2007; dx.doi.org/10.5883/DS-VGDS21)., Published as part of Volovnik, Semyon V., Boldgiv, Bazartseren, Iderzorig, Badamnyambuu, Khobrakova, Larisa Ts., Kolov, Sergey V., Rudykh, Sergey G., Zabaluev, Ilya A. & Grebennikov, Vasily V., 2021, The first molecular phylogeny of the weevil subfamily Lixinae (Coleoptera Curculionidae) casts doubts on the monophyly of its tribes, pp. 201-220 in Zootaxa 5026 (2) on page 207, DOI: 10.11646/zootaxa.5026.2.3, {"references":["Ratnasingham, S. & Hebert, P. D. N. (2007) BOLD: The Barcode of Life Data System (www. barcodinglife. org). Molecular Ecology Notes, 7, 355 - 364. https: // doi. org / 10.1111 / j. 1471 - 8286.2007.01678. x"]}

Tazarcus gen. n. http://zoobank.org/ urn:lsid:zoobank.org:act: 09E4CE1E-BFE6-47E9-89BD-2A529F652DA4 Type species. Tazarcus aeaea sp. nov., here designated. Diagnosis. Known representatives of the new genus can be recognized among weevils by the unique combination of the following easily observed characters: body small (combined dorsal length of pronotum and elytra 2.0��� 3.4 mm); ratio of combined pronotal and elytral length in dorsal view to the maximal body width 1.6 x or less; elytra laterally rounded, without shoulders; rostrum relatively short and straight; eyes present, small and flat; antennal funicle with seven segments; anterior margin of prothorax laterally without postocular lobes; prosternum with canal laterally delimited by ridges tapering anteriad and linking anterior edge of prosternum with anterior edge of procoxae (thus canal only present in front of procoxae, not behind); procoxae separate; metanepisternal sutures absent, their place occupied by longitudinally oriented metapleural ridge bearing on its crest a line of short and robust small setae (sclerolepidia?); femora without teeth-like projections; tarsal claws small, separate and not appendiculate; elytra with nine longitudinal punctate striae; legs and rostrum dorsally covered with dense matt whitish pilosity; hind wings absent. Adults of the new genus (particularly those of the type species) habitually resemble comparably rounded, flightless and globular members of the distantly related (McKenna et al. 2009) genus Ocladius Sch��nherr, 1825 (Meregalli & Colonnelli 2006). At least three Ocladius species have been reported from the highlands of northern Tanzania (Aurivillius 1910), one of them (O. seriatus Faust, 1896) from ���Usambara���. Adults of Tazarcus are externally distinguishable from those of Ocladius by the straight, shorter and thicker rostrum lacking longitudinal keels and furrows.Adults of all other genera of flightless East African Molytinae have a more slender body (a ratio of dorsal combined length of pronotum and elytra to the maximal body width of> 1.6x). Four additional diagnostic characters aid in the identification of Tazarcus: (1.) small body size, combined length of pronotum and elytra in dorsal view 2.0��� 3.4 mm; (2.) a short and straight rostrum; (3.) small flat eyes; and (4.) a short prosternal canal, tapering anteriad. Species composition and distribution. This genus consists of two herein described allopatric species restricted to the EAM Chain in Tanzania. The two species can be easily separated by the form of the elytral punctation (Figs. 1A, B vs Fig. 2A, B). Biology. Adult specimens of the new genus were found by sifting forest floor litter in wet Afromontane forests at elevations between 1576 m and 2318 m. Host plants, immature life stages, parasites or any other biological aspects are unknown. Etymology. Toponymic, formed by abbreviating ���Tanzanian Arc���, with reference to the EAM occurring predominantly in Tanzania; gender masculine., Published as part of Grebennikov, Vasily V., 2020, Tazarcus, a new phylogenetically unplaced genus of two flightless weevils with metapleural ridge from the Eastern Arc Mountains, Tanzania (Coleoptera: Curculionidae: Molytinae), pp. 421-434 in Zootaxa 4766 (3) on pages 425-426, DOI: 10.11646/zootaxa.4766.3.2, http://zenodo.org/record/3765549, {"references":["McKenna, D. D., Sequeira, A. S., Marvaldi, A. E. & Farrell, B. D. (2009) Temporal lags and overlap in the diversification of weevils and flowering plants. Proceedings of the National Academy of Sciences USA, 106, 7083 - 7088. https: // doi. org / 10.1073 / pnas. 0810618106","Meregalli, M. & Colonnelli, E. (2006) The genus Ocladius Schonherr, 1825 (Coleoptera: Curculionoidea: Curculionidae) in the Arabian subregion, with description of six new species. Fauna of Arabia, 21, 251 - 306.","Aurivillius, C. (1910) 7. Coleoptera. 21 Curculionidae. In: Sjostedt, Y. (Ed.), Wissenschaftliche Ergebnisse der Schwedischen zoologischen Expedition nach dem Kilimandjaro, dem Meru und den umgebenden Massaisteppen Deutsch-Ostafrikas 1905 - 1906, unter Leitung von Prof. Dr. Yngve Sjostedt. Volume 1, Abteilung 1 - 7. P. Palmquists Aktiebolag, Stockholm, pp. 403 - 435."]}

Tazarcus aeaea sp. n. Figs 1, 4, 5 http://zoobank.org/ urn:lsid:zoobank.org:act: 3EA886A2-BA5C-4F0A-AA07-49558CD9A936 Type locality. Tanzania, West Usambara Mts., Mkusu Forest, S4.76585�� E38.36022��, 1576 m. Description. Length of pronotum and elytra in dorsal view 2.0��� 2.5 mm (n=7); lateral body contour in dorsal view not constricted between pronotum and elytra; lateral sides of posterior half of pronotum and elytra at middle evenly curved; disc of pronotum completely covered by dense whitish pilosity; procoxae separated by distance greater than half their length; elytral punctures on striae small, their diameter not greater than 0.2 of width of interstriae; elytral interstriae with row of prominent appressed scales as long as width of interstriae; male genitalia: Figs 5 E���F; DNA: Table 2. Geographic variability. Adults of the new species from South Pare and West Usambara populations appear morphologically indistinguishable, even though genetically distinct (Fig. 4). Material examined. Holotype (CNC), male, ��� TANZANIA, W. Usambara Mts., Mkusu For., S4.76585�� E38.36022��, 1576m, 14.i.2013, sift47, V.Grebennikov���, ���CNCCOLVG00005480���. Paratypes (CNC), 3: same data as holotype, specimens 5479, 9337, 9338. Additional material: 4 (CNC): in ethanol, same data as holotype; 1 (in collection of D. McKenna): same data as holotype; 1 (CNC): ��� TANZANIA, South Pare Mts., Chome For., S4.26865�� E37.92944��, 2318m, 3.i.2013, sift36, V.Grebennikov���, 2 (CNC): ��� TANZANIA, South Pare Mts., Chome For., S4.26945�� E37.92814��, 2239m, 3.i.2013, sift37, V.Grebennikov���. Distribution. This species is known from two nearby EAM localities in Tanzania, South Pare and West Usambara. Etymology. The species epithet is a Latinized Greek mythical name of Aeaea, an island of the goddess Circe, who is known for transforming her offenders into animals, and it is a noun in apposition., Published as part of Grebennikov, Vasily V., 2020, Tazarcus, a new phylogenetically unplaced genus of two flightless weevils with metapleural ridge from the Eastern Arc Mountains, Tanzania (Coleoptera: Curculionidae: Molytinae), pp. 421-434 in Zootaxa 4766 (3) on page 426, DOI: 10.11646/zootaxa.4766.3.2, http://zenodo.org/record/3765549

Grebennikov, Vasily V. (2020): Tazarcus, a new phylogenetically unplaced genus of two flightless weevils with metapleural ridge from the Eastern Arc Mountains, Tanzania (Coleoptera: Curculionidae: Molytinae). Zootaxa 4766 (3): 421-434, DOI: 10.11646/zootaxa.4766.3.2

This study targets the post-Oligocene evolution of low-vagility beetles in wet African forests. Two nominal genera of large-bodied pill scarabs form the focus: the East African Afrocloetus with two nominal species and the Central African Congomostes with three nominal species. Both genera are rarely sampled, particularly Afrocloetus which is known until now from two holotypes collected in 1948 and 1957. Long series of Afrocloetus are newly reported from four Tanzanian localities: Kimboza forest, Kaguru, Rubeho and Udzungwa; the last three belong to the biodiverse chain of the Eastern Arc Mountains. A phylogenetic analysis utilized a matrix consisting of 52 terminals (including five Afrocloetus and two Congomostes) and an alignment of 2,940 bp from one mitochondrial and two nuclear fragments. The analysis recovered both genera as monophyletic and forming the sister clade to the Afrotropical Philharmostes group of genera. Molecular clock analysis of 39 DNA barcodes of both genera estimated their separation within a temporal window (13.0 – 6.8 Ma) that is fully concurrent with the Miocene uplift of the East African Plateau causing aridification and forest fragmentation. Three Tanzanian localities each support an endemic mitochondrial Afrocloetus clade evolving in allopatry, following the pre-Pleistocene range breakup of their originally widespread ancestor (= first cycle of forest expansion and contraction). Two morphologically and genetically distinct Afrocloetus clades co-exist in Udzungwa; this sympatry is attributed to secondary re-colonization of Udzungwa by the younger and reproductively isolated clade at 2.4 – 1.2 Ma (= second cycle of forest expansion and contraction). This hypothesised re-colonisation of Udzungwa by flightless beetles coincides with the Pleistocene climatic cycles and suggests temporal connectivity between Rubeho and Udzungwa forests. Adults of Afrocloetus are extensively illustrated, compared among themselves and with those of Congomostes, and their relevant evolutionary markers are discussed. The taxonomy of both nominal and likely synonymous genera is unmodified pending further research. Habitus images, DNA sequences and other supplementary information of all sequenced specimens are available online at dx.doi.org/10.5883/DS-VGDS002 and dx.doi.org/10.5883/DS-VGDS003.

Agrilus draco sp. nov. (Fig. 3A) Description of holotype. Body length: 17.2 mm. BODY. Shape: cuneiform, Build: robust, Color (dorsally): unicolored. HEAD. Medial impression: deep. Vertex. Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes. Size: subequal to half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: converging ventrally. Antennae. Length: reach to anterior pronotal angles, Serration: from antennomere 4. PRONOTUM. Shape: visually transverse, Sides: subangulate, Maximal width: at posterior margin, Anterior margin: narrower than posterior. Anterior lobe. Development: absent or vague. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (width): narrow. Prehumerus. Development: obsolete, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: distant from lateral pronotal carina, Posterior end: distant from posterior pronotal angle or margin, Arc: moderate. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior angles. Scutellum. Carina: obsolete or absent. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate, Modifications: widely expanded. Pubescence. Extent: distal only, Distal (shape): preapical. STERNUM. Prosternal lobe. Distal margin: arcuate, Emargination (width): wide. Prosternal process. Shape: subparallel, Sides: arcuate, Angles: obtuse, Angles (tips): blunt, Disc: flat, Projection (length): protruding distinctly beyond angles. ABDOMEN. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (depth): very shallow. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Ovipositor. Shape: square (uritiform). Variability. The species is known only from the female holotype. Diagnosis. A. draco sp. nov. has no similar species in the Oriental fauna, but resembles Neotropical A. pyropygus Thomson, 1878. Among Oriental species, the new species distantly resembles A. bicornis Th��ry, 1930 by having expanded elytral apices, but can be easily recognized by the much greater size. Type material. Type locality: Malaysia, Sabah, Crocker Range, Mt. Trus Madi, N 05��33'00���, E 116��31'00���E, altitude 1000 m. Type specimens. Holotype ♀ (EJCB): ��� Malaysia: Sabah, Crocker Range, Mt. Trus Madi, 1000m \ N05��33'00���, E 116��31'00���E, 20.iii.���28.iv.2006, S. Chew coll.���. Distribution. MALAYSIA: Sabah. Etymology. The specific name draco (dragon) is the Latin noun in apposition. It refers to the remarkable species appearance more typical for Neotropical Agrilus., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on pages 450-451, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus xia sp. nov. (Figs. 1A, 5A) Description of holotype. Body length: 7.3 mm. BODY. Shape: subparallel, Color (dorsally): unicolored. HEAD. Size: very large, Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate, Sculpture density: dense. Eyes. Size: subequal or larger than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: converging ventrally. Antennae. Serration: from antennomere 4, Antennomeres 7–10: with obvious petiole. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Convexity: flat, Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): shallow, Lateral impressions (width): narrow. Prehumerus. Development: obsolete, Extent: adjoining posterior angle, Posterior end: joined with posterior pronotal angle or margin. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. Scutellum. Size: robust. ELYTRA. Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Extent: distal only, Distal (shape): perisutural stripe. STERNUM. Pubescence. Strip of erect pubescence: absent. Prosternal lobe. Size: large, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process. Width: wide, Shape: markedly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: flat, with cluster of setae, Projection (length): protruding distinctly beyond angles. Metasternum. Modification: with cluster of setae above metacoxal plates. ABDOMEN. Tomentum: absent. Basal ventrite. Modifications: with tubercle(s). Pygidium. Apical margin: arcuate. Sternal groove. Extent: on all ventrites, Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to mesotarsus: obviously longer, Length to metatibia: somewhat shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Aedeagus. Symmetry: symmetric, Shape: widest in apical part, Modifications: parameres with obvious membranous lobes. Variability. The species is known only from the holotype. Diagnosis. Agrilus xia sp. nov. is similar to the Palaearctic A. graminis Kiesenwetter, 1857 by the habitus, by the pattern of the elytral pubescence, and by the clusters of setae on the prosternum. The new species can be distinguished by the unmodified antennae in the males, by the obsolete prehumerus, by the large prosternal lobe, by two clusters of setae on the prosternum, with the larger cluster at the base and the smaller cluster on the apex of prosternal process (one cluster in A. graminis), and by the presence of a single hook-like tubercle in the middle of the basal ventrite. Type material. Type locality: North Laos, Phongsaly province, Phongsaly env., 21°41'–2'N, 102°06'–08'E, altitude ~ 1500m. Type specimens. Holotype ♂ (EJCB): “Lao-N, Phongsaly prov., 21°41'–2'N, 102°06'–08'E, 28.v.–20.vi.2003 Phongsaly env., ~ 1500m, Vít Kubáň leg.”. Distribution. LAOS: Phôngsali.

Agrilus jum sp. nov. (Figs. 2D, 5J) Description of holotype. Body length: 4.4 mm. BODY. Shape: cuneiform, Posterior tapering part: long with narrow apex, Color (dorsally): unicolored. HEAD. Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate, Sculpture density: dense. Eyes. Size: larger than half width but smaller than width of vertex (dorsal view), Shape: markedly protruding head outline, Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually transverse, Sides: markedly arcuate, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (depth): shallow, Lateral impressions (width): broad. Prehumerus. Development: filamentary, Shape: arcuate, Extent: beyond 1/2 of pronotal length, Modifications: with rudiment at anterior part, Anterior end: adjoining to lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: moderate. Lateral carinae. Interspace: narrow, Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Extent: proximal and distal, Proximal (shape): quadrangular, Distal (shape): preapical. STERNUM. Pubescence. Strip of erect pubescence: absent. Prosternal lobe. Position to sternum: markedly declivous, Distal margin: arcuately emarginate, Emargination (width): wide. Prosternal process. Shape: subparallel, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: impressed, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (depth): markedly deep. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Aedeagus. Symmetry: feebly asymmetric, Profile: flat, Modifications: apex of medial lobe markedly obtuse. Variability. Body length: 4.3–4.4 mm. The species is known only from males. Sexual dimorphism. The male has a medial strip of erect pubescence from the prosternal lobe to the metasternal projection. Diagnosis. Agrilus jum sp. nov. is similar to A. friebi Obenberger, 1922 by the size, by the color, and by the habitus, but it can be distinguished by having a subparallel prosternal process and a feebly asymmetric aedeagus (Fig. 5J). Type material. Type locality: Northeastern Laos, Houa Phan province, 20°12–13.5'N, 103°59'.5– 104°01'E, Ban Saluei + Phou Pane Mt., altitude 1340–1870 m. Type specimens. Holotype ♂, 2 ♂ paratypes (EJCB): “Laos- NE, Houa Phan prov., 20°12–13.5'N, 103°59'.5– 104°01'E, Ban Saluei + Phou Pane Mt., 1340–1870m, 15.iv.–15.v.2008, Lao collectors leg.”. Distribution. LAOS: Houaphan.

Agrilus cicadelloides sp. nov. (Fig. 3C) Description of holotype. Body length: 6.8 mm. BODY. Shape: fusiform, Profile: convex, Color (dorsally): unicolored. HEAD. Eyes. Size: smaller than half width of vertex (dorsal view), Shape: markedly protruding head outline, Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Length: reach to anterior pronotal angles, Width: antennomeres 5–10 obviously short and broad, Serration: from antennomere 5. PRONOTUM. Shape: visually transverse, Sides: slightly arcuate, Maximal width: at posterior margin, Anterior margin: narrower than posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: projecting beyond anterior angles. Posterior angles. Shape: acute, Apex: blunt. Disk. Convexity: strongly convex, Impressions: absent. Prehumerus. Development: obsolete, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: distant from lateral pronotal carina, Posterior end: distant from posterior pronotal angle or margin, Arc: weak. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. Scutellum. Size: robust. ELYTRA. Humeral carina: absent. Apices. Arrangement: conjoint, Shape: arcuate. Pubescence. Extent: entire ornamental. STERNUM. Prosternal lobe. Distal margin: subtruncate. Prosternal process. Shape: subparallel, Sides: straight, Angles: obtuse, Angles (tips): sharp, Disc: flat. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: angulately sinuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Ovipositor. Shape: square (uritiform). Variability. The species is known only from the female holotype. Diagnosis. Agrilus cicadelloides sp. nov. is similar to A. scutellaris Deyrolle, 1864 by the small eyes, by the trapezoid pronotum, by the sculpture of the pronotal disc, by the absence of a prehumerus, and by the robust scutellum. The new species can be distinguished by having a cluster of reddish setae on head, by an obvious pronotal lobe, and by conjointly arcuate elytral apices. Type material. Type locality: Malaysia, Sarawak, Kampung Kuap [01°24'28”N, 110°21'38”E]. Type specimens. Holotype ♀ (EJCB): “ Malaysia, Sarawak, Kampung Kuap, iii. 1914 ”. Distribution. MALAYSIA: Sarawak. Etymology. The specific name cicadelloides is derived from the family name Cicadellidae (Hemiptera), and the suffix- oides, denoting form or resemblance to stress similarity with a leafhopper.

Agrilus kon sp. nov. (Figs. 2F, 5L) Description of holotype. Body length: 4.1 mm. BODY. Shape: subparallel, Profile: convex, Color (dorsally): unicolored. HEAD. Size: very large, Modification: strongly convex. Vertex. Shape: markedly convex, Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate, Sculpture density: dense. Eyes. Size: subequal or larger than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at anterior margin, Anterior margin: wider than posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): shallow. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: adjoining to lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: weak. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5���1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Shape: arcuate. Pubescence. Extent: proximal and distal, Proximal (shape): triangular, Distal (shape): preapical. STERNUM. Pubescence. Strip of erect pubescence: absent. Prosternal lobe. Size: narrow, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: impressed, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: with tubercle(s). Last three ventrites. Modifications: with patches of erect pubescence. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (depth): markedly deep. LEGS. Metafemora. Modifications: with comb of setae on inner margin. Metatibiae. Modification: with comb of setae on inner side. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Aedeagus. Symmetry: symmetric, Shape: widest in basal part. Variability. The species is known only from the male holotype. Diagnosis. Agrilus kon sp. nov. is similar to A. relegatus Curletti, 1990 by the size, by the habitus, and by the color. The new species can be distinguished by the shape of the aedeagus, which is strongly enlarged apically (Fig. 5L), and by very specific male sexual characters in the form of a pair of tubercles on the basal ventrite, by clusters of fine, erect pubescence in the middle of the last three ventrites, and by a row of setae on the inner margin of the metatibiae and metafemora. Type material. Type locality: South West Cambodia, 20 km SE Koh Kong, Tatai river, 11��34'N, 103��07'E, altitude 50���300 m. Type specimens. Holotype ♂ (EJCB): ���SW Cambodia, 20km SE Koh Kong, Tatai river 11��34'N, 103��07'E, 3���19.v.2005, 50��� 300m, E. Jendek & O. ��au��a leg.���. Distribution. CAMBODIA: Kaol Kong., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on pages 454-455, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus ika sp. nov. (Figs. 2E, 5K) Description of holotype. Body length: 6.6 mm. BODY. Shape: cuneiform, Profile: convex, Color (dorsally): unicolored. HEAD. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate, Sculpture density: dense. Eyes. Size: larger than half width but smaller than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: converging ventrally. Antennae. Length: reach to anterior pronotal angles, Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: acute, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/2 of pronotal length, Modifications: with rudiment at anterior part, Anterior end: distant from lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: moderate. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: conjoint, Shape: arcuate. Pubescence. Extent: entire except epipleura. STERNUM. Pubescence. Strip of erect pubescence: extending from prosternal lobe to metasternal projection. Prosternal lobe. Size: large, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): narrow. Prosternal process. Width: wide, Shape: markedly dilated, Sides: straight, Angles: acute, Angles (tips): sharp, Disc: flat, Projection (length): adjoining to angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (depth): very shallow. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Aedeagus. Symmetry: symmetric, Modifications: medial lobe distinctly wider than parameres. Variability. Body length: 5.9–6.6 mm. The species is known only from males. Sexual dimorphism. The male has a medial strip of erect white pubescence from the prosternal lobe to the metasternal projection. Diagnosis. Agrilus ika sp. nov. is similar to A. dahoi Baudon, 1965 by habitus, by the color, and by the obviously dilated sternal process. The new species can be distinguished by the pronotum with sinuate sides at the posterior angles; by the elytra having a wide strip of adsutural pubescence; by conjointly arcuate elytral apices; and by the apically enlarged aedeagus(Fig. 5K). Type material. Type locality: Solomon Islands, Quadalcanal Island, ca 3.5 km SE Barana village, 09°29.8'S, 159°59.5'E. Type specimens. Holotype ♂, 1 ♂ paratype (EJCB): “ Solomon isl., Quadalcanal, ca 3.5km SE Barana vill., 09°29.8'S, 159°59.5'E, 23.xi.–15.xii.2013, J. Horak leg.”. Distribution. SOLOMON ISLANDS.

Agrilus wos sp. nov. (Figs. 1D, 5D) Description of holotype. Body length: 5.7 mm. BODY. Shape: subparallel, Profile: convex, Color (dorsally): unicolored. HEAD. Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes. Size: subequal or larger than width of vertex (dorsal view), Shape: markedly protruding head outline, Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4, Antennomeres 7–10: with obvious petiole. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: projecting beyond anterior angles. Posterior angles. Shape: acute, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): shallow. Prehumerus. Development: obsolete, Shape: arcuate, Extent: adjoining posterior angle, Anterior end: distant from lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. Scutellum. Size: robust. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: conjoint, Shape: subtruncate. Pubescence. Extent: proximal and distal, Proximal (shape): quadrangular, Distal (shape): apical. STERNUM. Pubescence. Strip of erect pubescence: extending from prosternal lobe to metasternal projection. Prosternal lobe. Size: large, Position to sternum: markedly declivous, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process. Width: wide, Shape: markedly dilated, Angles: obtuse, Angles (tips): blunt, Disc: flat, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to metatibia: somewhat shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4, Modification: with comb of setae on lower side. GENITALIA. Aedeagus. Symmetry: symmetric, Modifications: apex of medial lobe markedly obtuse, medial lobe distinctly wider than parameres. Variability. Body length: 5.1–5.7 mm. The paratype has broadly, separately arcuate elytral apices. Sexual dimorphism. The male has a strip of erect pubescence on the sternum and a comb of erect setae on the first metatarsomere. The female is unknown. Diagnosis. Agrilus wos sp. nov. is similar to A. volkovitshi Jendek, 2007 by the color, by the habitus, by the size of the eyes, by the shape of the pronotum, and by the pattern of the elytral pubescence. The new species can be distinguished by the obliterate prehumerus, by the shape of aedeagus (Fig. 5D), by the lack of tubercles on the basal ventrite, and by the presence of long setae on the first metatarsomere in the males. Type material. Type locality: Northeastern Laos, Houa Phan province, 20°12–13.5'N, 103°59'.5– 104°01'E, Ban Saluei + Phou Pane Mt., altitude 1340–1870 m. Type specimens. HT, 1 ♂ paratype (EJCB): “Laos-NE, Houa Phan prov., 20°12–13.5'N, 103°59'.5– 104°01'E, Ban Saluei + Phou Pane Mt., 1340–1870m, 15.iv.–15.v.2008, Lao collectors leg.”. Distribution. LAOS: Houaphan.

Agrilus titi sp. nov. (Fig. 4C) Description of holotype. Body length: 4.3 mm. BODY. Shape: subparallel, Build: robust, Posterior tapering part: short with broad apex, Color (dorsally): unicolored. HEAD. Size: very large, Modification: obviously flat. Vertex. Outline: markedly protruding head outline, Medial impression: present, Sculpture elements: rugae, Sculpture density: sparse, Sculpture intensity: superficial. Eyes. Size: smaller than half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually transverse, Sides: slightly arcuate, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: absent or vague. Posterior angles. Shape: rectangular, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): deep. Prehumerus. Development: carinal, Shape: bisinuate, Extent: to anterior angle, Anterior end: joined with anterior pronotal angle, Posterior end: joined with posterior pronotal angle or margin, Arc: weak. Lateral carinae. Interspace: narrow, Convergence: moderate, Junction: present, Narrowest point: at posterior 1/3 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Extent: entire ornamental with indication of stripes. STERNUM. Prosternal lobe. Size: large, Distal margin: arcuate. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: flat, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Ovipositor. Shape: markedly elongate. Variability. The species is known only from the female holotype. Diagnosis. Agrilus titi sp. nov. is similar to A. evolutus Descarpentries & Villiers, 1963 by the size, by the color, by the habitus, by the very small eyes, by the markedly transverse pronotum, and by the similar elytral pubescence. The new species can be distinguished by the sinuate carinal prehumerus extending to the anterior pronotal angles. Type material. Type locality: Malaysia, West Perak, 25 km Northeast of Ipoh, Banjaran Titi Wangsa mts., Korbu Mt., altitude 1200 m. Type specimens. Holotype (EJCB): ��� Malaysia, W Perak, 25 km NE of Ipoh, 1200 m, Banjaran Titi Wangsa mts., Korbu Mt., 6���12.v.2001, P. Čechovsk�� leg.���. Distribution. MALAYSIA: Perak. Etymology. The specific name is derived from a part of the name of the Banjaran Titi Wangsa Mountains, the type locality., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on pages 458-459, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus uxo sp. nov. (Figs. 1E, 5E) Description of holotype. Body length: 5.7 mm. BODY. Shape: subparallel, Profile: convex. HEAD. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: subparallel, Sculpture density: dense. Eyes. Size: larger than half width, but smaller than width of vertex (dorsal view), Shape: markedly protruding head outline, Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4, Antennomeres 7���10: with obvious petiole. PRONOTUM. Shape: visually transverse, Sides: slightly arcuate, Maximal width: at middle, Anterior margin: narrower than posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: rectangular, Apex: blunt. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): shallow, Lateral impressions (width): broad. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: distant from lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: weak. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5���1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Presence: without discernible pubescence. STERNUM. Pubescence. Strip of erect pubescence: absent. Prosternal lobe. Size: large, Position to sternum: markedly declivous, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process. Shape: markedly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: flat with cluster of setae, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: impressed. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (depth): markedly deep, Sinuosity (width): very narrow. LEGS. Metacoxal plates. Modifications: with tubercle on inner margin. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: longer than 2���3 but shorter than 2���4. GENITALIA. Aedeagus. Symmetry: feebly asymmetric, Profile: flat. Variability. The species is known only from the male holotype. Diagnosis. Agrilus uxo sp. nov. is similar to the Palaearctic A. graminis Kiesenwetter, 1857 by the habitus and by the presence of a cluster of setae on the base of the prosternal process. The new species can be distinguished by unmodified antennae in males, by the lack of white elytral pubescence, by a small cluster of setae on the inner margin of the metacoxae, and by the shape of the aedeagus (Fig. 5E). Type material. Type locality: North Vietnam, Ninh Binh province, Cuc Phuong National Park, N 20��21'10���, E105��35'00���, altitude 440 m. Type specimens. Holotype ♂ (EJCB): ���N Vietnam, Ninh Binh prov., Cuc Phuong N. Park, N20��21'10���, E105��35'00���, 24���28.iv.2012, alt 440m, E. Jendek leg.���. Distribution. VIETNAM: Ninh Binh., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on page 459, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus qom sp. nov. (Figs. 2C, 5I) Description of holotype. Body length: 4.3 mm. BODY. Shape: cuneiform, Color (dorsally): unicolored. HEAD. Size: very large, Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: subparallel, Sculpture density: sparse, Sculpture intensity: superficial. Eyes. Size: subequal or larger than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at anterior margin, Anterior margin: wider than posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (depth): shallow. Prehumerus. Development: filamentary, Shape: arcuate, Extent: to 1/2 of pronotal length, Modifications: with rudiment at anterior part, Anterior end: adjoining to lateral pronotal carina, Posterior end: distant from posterior pronotal angle or margin, Arc: moderate. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5���1/4 of marginal carina. ELYTRA, Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Extent: entire. STERNUM. Pubescence. Strip of erect pubescence: absent. Prosternal lobe. Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): narrow. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: impressed, with row of setae on sides, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: impressed. ABDOMEN. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Aedeagus. Symmetry: symmetric, Shape: widest in apical part, Modifications: apex of medial lobe sharply pointed, parameres with obvious membraneous lobes. Variability. The species is known only from the male holotype. Sexual dimorphism. In the male, sides of prosternal process with a row of setae. Diagnosis. Agrilus qom sp. nov. is similar to Agrilus pusillesculptus Obenberger, 1940 by the size, by the color, by the habitus, by the large eyes protruding outside the outline of the head in dorsal view, and by the obvious pronotal lobe. The new species can be distinguished by the maximum width located at the anterior margin of the pronotum; by the shorter prehumerus, extending to half the pronotal length; by the separately arcuate elytral apices; and by the shape of the aedeagus (Fig. 5I). Type material. Type locality: Northeastern Laos, Houa Phan province, 20��12���13.5'N, 103��59'.5��� 104��01'E, Ban Saluei + Phou Pane Mt., altitude 1340���1870 m. Type specimens. Holotype ♂ (EJCB): ���Laos-NE, Houa Phan prov., 20��12���13.5'N, 103��59'.5��� 104��01'E, Ban Saluei + Phou Pane Mt., 1340���1870m, 15.iv.���15.v.2008, Lao collectors leg.���. Distribution. LAOS: Houaphan., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on page 458, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus yuk sp. nov. (Figs. 2A, 5G) Description of holotype. Body length: 7.2 mm. BODY. Shape: subparallel, Posterior tapering part: short with broad apex, Profile: dorsally flattened, Color (dorsally): unicolored. HEAD. Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture density: dense, Sculpture intensity: rough. Eyes. Size: subequal or larger than width of vertex (dorsal view), Shape: markedly protruding head outline, Lower margin: in line or below antennal socket, Median orbit: converging ventrally. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: projecting beyond anterior angles. Posterior angles. Shape: obtuse, Apex: blunt. Disk. Convexity: flat, Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (depth): shallow, Lateral impressions (width): broad. Prehumerus. Development: carinal, Shape: straight, Extent: adjoining posterior angle, Anterior end: distant from lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5���1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate. Pubescence. Extent: distal only, Distal (shape): preapical. STERNUM. Pubescence. Strip of erect pubescence: extending from prosternal lobe to metasternal projection. Prosternal lobe. Size: narrow, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): sharp, Disc: impressed, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: angulately sinuate, Sinuosity (depth): markedly deep. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Aedeagus. Symmetry: symmetric, Shape: widest in apical part. Variability. Body length: 5.9���7.4 mm. Some paratypes have additional pubescenceon the anterior half of the elytra. Sexual dimorphism. The males have longer antennae, broader elytral apices, and a medial strip of erect pubescence on the sternum. The females have a markedly elongate ovipositor. Diagnosis. Agrilus yuk sp. nov. is similar to the Palaearctic A. sulcicollis Lacordaire, 1835 by the size, by the general habitus, by the shape of the pronotum, by the widely arcuate elytral apices, and by the narrow sternal lobe. The new species can be distinguished by the presence of the elytral pubescence, by the short prehumerus, by the lack of tubercles on basal ventrite in males, and by the shape of the aedeagus (Fig. 5G). Type material. Type locality: Northeastern Laos, Houa Phan province, 20��12���13.5'N, 103��59'.5��� 104��01'E, Ban Saluei + Phou Pane Mt., altitude 1340���1870 m. Type specimens. Holotype ♂, 1 ♂ paratype, 4 ♀ paratypes (EJCB): ���Laos-NE, Houa Phan prov., 20��12���13.5'N, 103��59'.5��� 104��01'E, Ban Saluei + Phou Pane Mt., 1340���1870m, 15.iv.���15.v.2008, Lao collectors leg.���. Other types. LAOS: Houaphan: ���Laos-NE, Hua Phan Province, Ban Saleui, Phou Pan (Mt), 20��12'N, 104��01'E, 7.iv���25.v.2010, 1300���1900m, leg. C. Holzschuh ��� 1 ♀ paratype (USNM); ���Laos-NE, Houa Phan prov., 20��12���13.5'N, 103��59'.5��� 104��01'E, Ban Saleuy + Phou Pane Mt., 1340���1870m, 2.���22.vi.2011, V��t Kub��ň & Lao coll. leg.��� 1 ♂ paratype (EJCB). Distribution. LAOS: Houaphan., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on pages 464-466, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus mimicus sp. nov. (Fig. 4A) Description of holotype. Body length: 5.1 mm. BODY. Shape: cuneiform, Color (dorsally): unicolored. HEAD. Vertex. Outline: markedly protruding head outline, Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes. Size: subequal to half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: acute, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (width): narrow. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/2 of pronotal length, Anterior end: adjoining to lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin, Arc: obvious. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/5���1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: cuspidate, Number of cusps or spines: 2, Position of dominant projection: sutural margin. Pubescence. Color: bicolored, Character: with patches or spots of denser pubescence, Extent: entire ornamental with indication of stripes. STERNUM. Prosternal lobe. Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): narrow. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: impressed, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Basal ventrite. Modifications: absent. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2���4. GENITALIA. Ovipositor. Shape: markedly elongate. Variability. This species is known only from the female holotype. Diagnosis. By having bicuspidate elytral apices, A. mimicus resembles species related to A. albogaster Deyrolle, 1864. It differs by the markedly longer pronotum when compared to the elytra, by the rough sculpture of the head and pronotum, and by the camouflaging pattern of the elytral pubescence. Type material. Type locality: Laos, Louang Namtha province, Namtha���Muang Sing, 21��09'N, 101��19'E, altitude 900���1200 m. Type specimens. Holotype ♀ (EJCB): ��� Laos, Louang Namtha pr., 21��09'N, 101��19'E, Namtha���Muang Sing, 5���31.v.1997, 900��� 1200 m, Vit Kub��ň leg.���. Distribution. LAOS: Louang Namtha. Etymology. The specific name mimicus (mimic) is the Latin adjective referring to the camouflage-like appearance of this species., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on pages 455-457, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725

Agrilus hergovitsi sp. nov. (Figs. 1B, 5B) Description of holotype. Body length: 5.4 mm. BODY. Shape: subparallel, Profile: convex, Color (dorsally): unicolored. HEAD. Size: very large, Modification: strongly convex. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate, Sculpture density: dense, Sculpture intensity: superficial. Eyes. Size: subequal or larger than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: converging ventrally. Antennae. Serration: from antennomere 4, Antennomeres 7���10: markedly longer than wide. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at anterior margin, Anterior margin: wider than posterior. Anterior lobe. Development: obvious, Shape: arcuate, Position: at level with anterior angles. Posterior angles. Shape: rectangular, Apex: sharp. Disk. Convexity: flat, Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (depth): shallow, Lateral impressions (width): broad. Prehumerus. Development: filamentary, Shape: arcuate, Extent: beyond 1/2 of pronotal length, Anterior end: adjoining to lateral pronotal carina, Posterior end: distant from posterior pronotal angle or margin, Arc: weak. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior angles. ELYTRA. Color: unicolored. Apices. Arrangement: separate, Shape: subangulate. Pubescence. Extent: distal only, Distal (shape): perisutural stripe. STERNUM. Prosternal lobe. Size: large, Position to sternum: markedly declivous, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): narrow. Prosternal process. Shape: slightly dilated, Sides: straight, Angles: obtuse, Disc: impressed with sides exserted, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: impressed. ABDOMEN. Basal ventrite. Modifications: with impression(s). Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuate. LEGS. Metafemora. Modifications: with comb of setae on inner margin. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: longer than 2���3 but shorter than 2���4. GENITALIA. Aedeagus. Symmetry: symmetric, Shape: widest in basal part, Modifications: apex of medial lobe markedly obtuse. Variability. The species is known only from the holotype. For male sexual dimorphism see Diagnosis. Diagnosis. The species is similar to A. syrphus Descarpentries & Villiers, 1963 in color and general appearance, but can be distinguished by the longer pronotum, by the gracile antennae, by the obliterated elytral pubescence, and by the shape of the aedeagus (Fig. 5B). Type material. Type locality: Malaysia, Johor, Endau Rompin National Park, 2��37'20���N 103��20'E, altitude 120���300 m. Type specimens. Holotype ♂ (EJCB): ��� Malaysia, Johor, Endau Rompin NP, 2��37'20���N 103��20'E, 23.ix.���3.x.2012, 120��� 300m, R. Hergovits leg.���. Distribution. MALAYSIA: Johor. Etymology. Patronymic; the species is named in honor of entomologist Roman Hergovits, Slovakia, who collected the holotype., Published as part of Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, pp. 449-469 in Zootaxa 4564 (2) on page 451, DOI: 10.11646/zootaxa.4564.2.7, http://zenodo.org/record/3713725