Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam Author Hisasue, Yu D2E20D5E-B406-4169-9B1D-A4D0078D06EE Entomological Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, Fukuoka, 819 - 0395, Japan. & Ogasawara Division of Japan Wildlife Research Center, Okumura, Chichijima, Ogasawara, Tokyo 100 - 2101, Japan. hybrizonist@gmail.com Author Pham, Thai-Hong B226B19B-509B-4878-B2FD-8505B688A1D2 Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), 321 Huynh Thuc Khang, Hue, Vietnam. & Graduate School of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam. phamthai@vnmn.vast.vn Author Mita, Toshiharu 6CC49F2C-C91C-463C-9C2D-8269588E1A6A Entomological Laboratory, Faculty of Agriculture, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, 819 - 0395 Japan. t3mita@agr.kyushu-u.ac.jp text European Journal of Taxonomy 2023 2023-08-04 887 1 1 68 http://zoobank.org/788ae14a-0698-4c42-819c-bc2412f76fca journal article 60724 10.5852/ejt.2023.887.2203 e07425be-9a2c-4459-aa8b-b51c90eafc0f 2118-9773 8222523 788AE14A-0698-4C42-819C-BC2412F76FCA Genus Loboscelidia Westwood, 1874 Loboscelidia Westwood, 1874: 171 . Type species: Loboscelidia rufescens Westwood, 1874: 172 . Loboscelidoidea (sic!) Rye, 1876: 365 . Invalid emendation of Loboscelidia . Laccomerista Cameron, 1910: 21 . Type species: Laccomerista rufescens Cameron, 1910: 22 (= Loboscelidia nixoni Day, 1978: 29 ]. Synonymized by Evans 1964: 17 . Scelidoloba Maa & Yoshimoto, 1961: 529 . Type species: Scelidoloba antennata Fouts, 1922 . Synonymized by Day 1978: 29 . Fig. 1. Pilosity of Loboscelidia Westwood, 1874 . A–E . Patterns of setae. F–H . Inclination of setae. A . Simple setae. B . Cuneate setae. C . Scale-like setae. D . Forked setae. E . Ribbon-like setae. F . Erect . G . Suberect. H . Decumbent. Diagnosis Frontal projection rectangular or triangular in frontal view; behind ocelli with or without transverse depression; cervical expansion trapezoid or cuboid in dorsal view, convex or flattened in lateral view; ribbon-like setae extending from adjacent to eye to apex of cervical extension of head; scape 2–4.5 times as long as wide, usually with flange on ventral margin; F11 about as long as F2 (males); F2–10 as wide as or wider than long (females); F11 flattened (females) or cylindrical (males); lateral margin of pronotum parallel or more commonly diverging posteriorly in dorsal view; dorsolateral surface of pronotum carinate or rounded; mesopleuron usually with scrobal sulcus; scutum usually with notauli; notauli usually reaching posterior margin; scutellum trapezoid or subtriangular; forewing A vein present, usually cu-a vein present, venation extending 0.3–0.5 times as long as forewing length; femora and tibiae usually with transparent flange; dorsolateral surface of hindcoxa usually with carinae. Description HEAD . Head shape kite-like or rhomboid; frontal projection rectangular or triangular in frontal view; frons granulate or smooth, usually with low ridge extending from vertex along inner eye margin; frons usually without carinae and wrinkles towards median ocellus, usually without frontal line; spraclypeal area usually with transverse carinae; apical margin of mandible acute (female) or rounded (male); temple shorter or longer than MOD; POL longer or as long as MOD; OOL longer than MOD; LOL usually shorter than half of MOD; behind ocelli with or without transverse depression; cervical expansion trapezoid or cuboid in dorsal view and convex or flattened in lateral view; scape usually with longitudinal grooves; scape 2–4.5 times as long as wide, usually with a flange on ventral surface; F2–10 1.5–3.0 times as long as wide, F11 about as long as F2 (males); F2–10 as wide as or wider than long (females); F11 flattened (females) or cylindrical (males). MESOSOMA . Mesosoma polished; anterior margin of pronotum usually linear, sometimes depressed; dorsolateral surface of pronotum carinate or rounded; notauli conversing posteriorly or parallel, usually reaching posterior margin; tegula very large, covering both wing bases and extending back to posterior margin of scutellum; scutellum punctured and rugose or smooth, usually with lateral carinae; metanotum with or without medial ridge; mesopleuron usually with scrobal sulcus, strongly or weakly depressed; propodeum usually slightly rounded in lateral view, with propodeal angle, usually without transverse carina above foramen; upper area of propodeum usually without transverse carina. LEGS . Legs usually polished; femora with flanges; tibiae with or without flanges; dorsolateral surface of tibiae usually with longitudinal carinae; dorsolateral surface of hindcoxa usually with longitudinal carinae, rarely absent; shape of hind femur variable, basally stout, apparently wider than distal part ( Fig. 2A ), or moderately stout, as wide as distal part ( Fig. 2B ), or simple and not stout, as wide as distal part ( Fig. 2C–D ); outer margin of hindfemur usually flat ( Fig. 2A–B, D ), rarely swollen in median part ( Fig. 2C ); ventral margin of hindfemur usually flat ( Fig. 2A–B ), sometimes swollen ( Fig. 2C–D ); tarsal claw of hindleg usually with a median tooth ( Fig. 25A–H, J–K, M–Q ), rarely without tooth ( Fig. 25I, L ); median tooth usually not extending half of tarsal claw ( Fig. 25A, C–H, M–O, Q ). WINGS . Forewing membrane usually maculate, with A, Cu+M, M, R1, R, cu-a, and Rs vein ( Fig. 3A–B ); forewing venation developed to half of forewing ( Fig. 3A ); A usually half as long as Cu+M ( Figs 4G , 10E ), sometimes as long as Cu+M; M usually curved ( Fig. 3A ), rarely straight or M vein absent (e.g., L. fulgens Kimsey, 2012 , L. reducta Maa & Yoshimoto, 1961 ); R1 usually 0.3–1.0 times as long as R, rarely absent; cu-a usually 0.4–1.0 times as long as R ( Figs 5G , 7F ), sometimes absent ( Figs 12E , 17G , 21F ); Rs usually more than 2.5 times as long as R. METASOMA . Metasoma polished; five visible segments in males. Females similar to male, four segments visible. PILOSITY . Eye usually without setae, rarely with sparse erect simple or scale-like setae; frontal projection usually with dense erect simple setae, sometimes with cuneate or scale-like setae; clypeus usually with sparse erect simple setae; lower gena with sparse suberect simple or cuneate setae; gena with ribbon-like setae; temple usually with sparse simple setae, sometimes with cuneate setae; cervical expansion with sparse simple setae and ribbon-like setae; antenna with sparse simple or cuneate setae; anterolateral margin of pronotum with ribbon-like setae, longer than those on gena; dorsal surface of pronotum usually with sparse simple or suberect cuneate setae, rarely with forked setae; propleuron sometimes with cuneate setae; scutum with sparse simple or suberect cuneate setae; tegula usually with sparse simple or cuneate setae, rarely with forked setae; mesopleuron usually with sparse cuneate setae; metanotum rarely with forked setae; propodeum with sparse simple setae or suberect cuneate setae in lateral view; apical half of coxae with sparse suberect simple or cuneate setae; femora usually with sparse simple and cuneate setae; tibiae with dense simple or cuneate setae. Distribution Australia ; Brunei ; China (Mainland China , Hainan Island); India ; Indonesia (Borneo Island, Java Island, Sula Islands, Sulawesi Island); Japan (Iriomote Island); Laos ; Malaysia (Malay Peninsula, Borneo Island); Papua New Guinea (New Guinea , New Britain Island); Philippines ( Basilan Island, Luzon Island, Mentawai Islands, Mindanao Island, Palawan Island, Sibuyan Island); Singapore ; Sri Lanka ; Taiwan ; Thailand ; Vietnam . Host Acrophylla sp. ( Phasmatidae : Phasmatinae) ( Riek 1970 ); Anchiale austrotessulata Brock & Hasenpusch, 2007 (as Ctenomorphodes tessulata (Gray, 1835)) ( Phasmatidae : Phasmatinae) ( Hadlington & Hoschke 1959 ; Heather 1965 ).