Loboscelidia glabra sp. nov. urn:lsid:zoobank.org:act: DA75CC25-7D50-4004-85C0-7AF48829DDE0 Figs 14, 25J Etymology Named after the Latin ‘ glaber ’, meaning ‘hairless’, referring to the eye without setae of the holotype. Type material Holotype VIETNAM • ♀; Ninh Binh Province, Cuc Phuong NP; 24–25 Aug. 2019; Y. Hisasue et al. leg.; FIT; VNMN. Description Female (Fig. 14A) MEASUREMENTS. Body length 3.6 mm; forewing length 2.7 mm. HEAD. Head (Fig. 14B–D) 1.8 times as long as high, 1.4 times as long as wide; inner ocular length 0.67 times as long as head width; frontal projection rectangular in frontal view (Fig. 14B); apical margin of frontal projection depressed (Fig. 14C); frons granulate, microstriae (Fig. 14C); frons without ridge along inner orbit of eye (Fig. 14C); frons with distinct carinae towards median ocellus (Fig. 14C); spraclypeal area with transverse carinae (Fig. 14B); temple 1.1 times as long as MOD (Fig. 14C); POL 1.2 times as long as MOD; OOL 2.5 times as long as MOD; LOL 0.48 times as long as MOD; behind ocelli with transverse depression (Fig. 14C); cervical expansion weakly convex in lateral view (Fig. 14D); basal part of cervical expansion strongly constricted in dorsal view (Fig. 14C); scape 2.6 times as long as wide; scape longitudinally carinate, without flange; F1 0.88 times as long as wide; F2 0.63 times as long as wide; F11 0.82 times as long as wide; relative length of F1–F11: 1.8: 1.4: 1.0: 1.0: 1.0: 1.0: 1.2: 1.2: 1.2: 1.2: 2.2. MESOSOMA. Pronotum 0.70 times as long as posterior width of pronotum (Fig. 14F); posterior width of pronotum 1.4 times as wide as anterior width and 1.3 times as wide as head width; dorsolateral surface of pronotum carinate (Fig. 14A); notauli parallel, reaching posterior margin (Fig. 14G); scutellum polished and punctured (Fig. 14G); scrobal sulcus present, weakly depressed (Fig. 14A); metanotum with medial ridge, 0.41 times as long as scutellum (Fig. 14G); propodeal angle weakly developed; propodeum without transverse carina above foramen. WINGS. Forewing (Fig. 14E) with M curved; cu-a 0.51 times as long as R; A extending half of Cu+M; R1 0.63 times as long as R; Rs 2.9 times as long as R. LEGS. Tibiae carinate; flange on forefemur 0.69 times longer, 1.3 times wider than tubular part of forefemur; flange on foretibia 0.67 times longer, 1.8 times wider than tubular part of foretibia; flange on midfemur 0.66 times longer, 0.8 times wider than tubular part of midfemur; flange on midtibia 0.61 times longer, 1.6 times wider than tubular part of midtibia; hind coxa dorso-laterally carinate; basal part of hindfemur strongly producing; hindfemur basally stout, apparently wider than distal part; ventral margin of hindfemur flat; outer surface of hindfemur smooth; flange on hindfemur 0.52 times longer, as wide as tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.73 times longer, 0.78 times wider than tubular part of hindtibia; hind tarsal claw without median tooth (Fig. 25J). PILOSITY. Gena with sparse suberect simple setae (Fig. 14D); hypostoma with sparse suberect simple setae; scape and pedicel with sparse decumbent cuneate setae; dorsal and lateral surfaces of pronotum with sparse decumbent cuneate setae (Fig. 14F); propleuron with sparse suberect simple setae; scutum, mesopleuron and metanotum with sparse decumbent cuneate setae (Fig. 14A, G); tegula with sparse suberect simple setae (Fig. 14G); scutellum with sparse decumbent cuneate setae (Fig. 14G); dorsal surface of propodeum almost asetose; lateral and posterior parts of propodeum with sparse decumbent cuneate setae; forecoxa and foretrochanter with sparse suberect simple setae; foretibia with sparse decumbent and suberect simple and cuneate setae; midleg with sparse decumbent and suberect simple and cuneate setae; hindleg with sparse decumbent and suberect simple and cuneate setae. COLORATION. Body reddish brown; antenna reddish brown; legs reddish brown; flanges yellowish brown; ribbon-like setae whitish yellow. Male Unknown. Distribution Vietnam (Northern Vietnam) (Fig, 27). Remarks Loboscelidia glabra sp. nov. resembles L. antennata Fouts, 1922 and L. hei Yao, Liu & Xu, 2010; however, L. glabra sp. nov. has eyes without setae (with erect setae in L. antennata); pronotum 0.80 times as long as wide (0.60 times as long as wide in L. antennata); shorter F11 0.80 times as long as wide (1.2 times as long as wide in L. hei); and a narrow hindtibial flange, 0.80 times as wide as the tubular part (as wide as the tubular part in L. hei).

Published as part of Hisasue, Yu, Pham, Thai-Hong & Mita, Toshiharu, 2023, Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam, pp. 1-68 in European Journal of Taxonomy 887 (1) on pages 31-33, DOI: 10.5852/ejt.2023.887.2203, http://zenodo.org/record/8222523