Loboscelidia glabra, Hisasue & Pham & Mita, 2023

Hisasue, Yu, Pham, Thai-Hong & Mita, Toshiharu, 2023, Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam, European Journal of Taxonomy 887 (1), pp. 1-68 : 31-33

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 ).