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).

Figures

Fig. 12. Loboscelidia flavipes sp. nov., holotype, ♂ (VNMN). A. Lateral habitus. B. Head, frontal view. C. Head, dorsal view. D. Head, lateral view. E. Pronotum, dorsal view. F. Mesosoma, dorsal view. G. Forewing. Scale bars: A, E–G = 0.5 mm; B–D = 0.2 mm.

Fig. 25. Hind tarsal claw of Loboscelidia Westwood, 1874. A. L. bachmaensis sp. nov. B. L. barbata sp. nov. C. L. cilia sp. nov. D. L. convexa sp. nov. E. L. cucphuongensis sp. nov. F. L. cuneata sp. nov. G. L. do sp. nov. H. L. flavipes sp. nov. I. L. fulgens Kimsey, 2012. J. L. glabra sp. nov. K. L. komedai sp. nov. L. L. mediata sp. nov. M. L. parallela sp. nov. N. L. piriformis sp. nov. O. L. squamosa sp. nov. P. L. vang sp. nov. Q. L. vietnamensis sp. nov.

Fig. 27. Distribution map of Loboscelidia spp. in Vietnam. L. cuneata sp. nov. (purple circles). L. defecta Kieffer, 1916 (gold circle). L. do sp. nov. (white circles). L. flavipes sp. nov. (black circle). L. fulgens Kimsey, 2012 (light blue circles). L. glabra sp. nov. (brown circle).