Loboscelidia flavipes, 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 : 26-27

Loboscelidia flavipes sp. nov.

urn:lsid:zoobank.org:act:7E033E15-9CF0-4E63-8F74-294C76C6C2EA

Figs 12, 25H

Etymology

Named after the Latin ‘ flava ’, meaning ‘yellow’, and ‘ pes ’, meaning ‘foot’, referring to the pale-yellow legs.

Type material

Holotype

VIETNAM • ♂; Ninh Binh Province, Cuc Phuong NP; 20°21′01.9″ N, 105°35′37.0″ E; 24 Jul. 2010; T. Mita leg.; VNMN.

Description

Male ( Fig. 12A)

MEASUREMENTS. Body length 3.1 mm; forewing length 3.2 mm.

HEAD. Head ( Fig. 12B–D) 2.0 times as long as high, 1.3 times as long as wide; inner ocular length 0.58 times as long as head width; frontal projection rectangular in frontal view ( Fig. 12B); apical margion of frontal projection straight ( Fig. 12C); frons granulate, finely microstriate ( Fig. 12C); frons with low ridge extending from vertex along inner orbit of eye ( Fig. 12C); spraclypeal area without transverse carinae ( Fig. 12B); temple 0.80 times as long as MOD ( Fig. 12C); POL as long as MOD; OOL 1.4 times as long as MOD; LOL 0.4 times as long as MOD; behind ocelli without transverse depression ( Fig. 12C); cervical expansion convex in lateral view ( Fig. 12D); basal part of cervical expansion parallel in dorsal view ( Fig. 12C); scape 2.8 times as long as wide; scape with longitudinal grooves; scape with transparent flange; F1 1.9 times as long as wide; F2 1.8 times as long as wide; F11 3.6 times as long as wide; relative length of F1–F11: 1.2: 1.1: 1.1: 1.1: 1.0: 1.0: 1.1: 1.1: 1.2: 1.1: 1.7.

MESOSOMA. Pronotum 0.83 times as long as posterior width of pronotum ( Fig. 12E); posterior width of pronotum 1.5 times as wide as anterior width and as wide as head width; dorsolateral surface of pronotum carinate ( Fig. 12A); notauli of scutum slightly curved, reaching posterior margin ( Fig. 12F); scrobal sulcus absent ( Fig. 12A); scutellum polished and impunctured, without lateral carina ( Fig. 12F); metanotum with two ridges, 0.43 times as long as scutellum ( Fig. 12F); propodeal angle strongly developed; upper area of propodeum without transverse carina; propodeum without transverse carina above foramen.

WINGS. Forewing ( Fig. 12G) with M curved; cu-a 0.50 times as long as R; A extending half of Cu+M; R1 0.42 times as long as R; Rs 3.6 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.59 times longer, 1.3 times wider than tubular part of forefemur; flange on foretibia 0.42 times longer, 0.67 times wider than tubular part of foretibia; flange on midfemur 0.37 times longer, 1.6 times wider than tubular part of midfemur; flange on midtibia 0.50 times longer, 0.67 times wider than tubular part of midtibia; hindcoxa 1.9 times as long as hind trochanter; hindcoxa dorso-laterally carinate; basal part of hindfemur producing; hindfemur basally not stout, as wide as distal part; ventral margin of hindfemur flat; flange on hindfemur 0.66 times longer, as wide as tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.80 times longer, 1.5 times wider than tubular part of hindtibia.

PILOSITY. Lower gena with sparse decumbent cuneate setae ( Fig. 12D); hypostoma with sparse decumbent cuneate setae; foretibia with sparse decumbent and suberect simple and cuneate setae; midcoxa with sparse decumbent cuneate setae; midfemur and midtibia with sparse decumbent and suberect simple and cuneate setae; hindcoxa with sparse decumbent cuneate setae; hindfemur and hindtibia with sparse decumbent and suberect simple setae.

COLORATION. Body yellowish brown; antenna yellowish brown; legs yellowish brown; ribbon-like setae whitish yellow.

Female

Unknown.

Distribution

Vietnam (Northern Vietnam) ( Fig. 27).

Remarks

Loboscelidia flapives sp. nov. resembles L. vietnamensis sp. nov. and L. bachmaensis sp. nov. in having the following characteristics: frons microstriate; cervical expansion weakly convex; F1 less than twice as long as wide; and Rs more than 3.0 times as long as R ( L. vietnamensis sp. nov.). However, L. flavipes sp. nov. can be distinguished by the following characteristics: yellow body color (red or reddish brown in the other two species); temple more than 0.50 times as long as MOD ( L. vietnamensis sp. nov. less than 0.30 times as long as R); POL as long as MOD ( L. vietnamensis sp. nov. shorter than MOD, L. bachmaensis sp. nov. longer than MOD); pronotum narrower than head (wider than head in L. bachmaensis sp. nov.); and cu-a 0.50 times as long as R (nearly 0.30 times as long as R in other two species).