Loboscelidia fulgens Kimsey, 2012

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 : 29-31

Loboscelidia fulgens Kimsey, 2012

Figs 2C, 3B, 13, 25I

Loboscelidia fulgens Kimsey, 2012: 16 . Holotype ♂; Vietnam: Tuyen Quang Province, Na Hang Nature Reserve (CNC).

Material examined

Paratypes

VIETNAM • 1 ♂; Ha Tinh province, Huong Son ; 450 m a.s.l.; 18°22′ N, 105°13′ E; 22 Apr.–1 May 1998; L. Herman leg.; light trap; CNC • 1 ♂; Tuyen Quang province, Na Hang Reserve ; 360 m a.s.l.; 16–20 May 1997; S.B. Peck leg.; FIT; CNC .

Non-type

VIETNAM • 5 ♂♂; Bac Giang Province, Tay Yen Tu NR; 21°10′52.33″ N, 106°43′24.3″ E; 9 Jul. 2014; T. Mita leg.; VNMN • 5 ♂♂; same locality data as for preceding but 21°11′3.65″ N; 106°44′42.44″ E; 10 Jul. 2014; K. Tsujii leg.; VNMN .

Description

Male ( Fig. 13A)

MEASUREMENTS. Body length 2.4–3.1 mm; forewing length 2.7–3.2 mm.

HEAD. Head ( Fig. 13B–D) 1.8 times as long as high, 1.1 times as long as wide; inner ocular length 0.67 times as long as head width; frontal projection rectangular in frontal view ( Fig. 13C); apical margion of frontal projection depressed ( Fig. 13D); frons polished and unpunctured ( Fig. 13D); frons with low ridge extending from median ocellus along inner orbit of eye ( Fig. 13D); frons with indistinct carinae towards median ocellus ( Fig. 13C); frons with distinct frontal line; spraclypeal area with transverse carinae; temple 0.64 times as long as MOD ( Fig. 13D); POL 1.2 times as long as MOD; OOL as long as MOD; LOL 0.40 times as long as MOD; behind ocelli with transverse depression; cervical expansion convex in lateral view ( Fig. 13B); basal part of cervical expansion constricted in dorsal view ( Fig. 13D); scape 3.6 times as long as wide; scape with longitudinal grooves; F1 2.2 times as long as wide; F2 1.8 times as long as wide; F11 3.0 times as long as wide; relative length of F1–F11: 1.3: 1.1: 1.0: 1.0: 1.0: 1.1: 1.0: 1.1: 1.1: 1.1: 1.6.

MESOSOMA. Pronotum 0.81 times as long as posterior width of pronotum ( Fig. 13F); posterior width of pronotum 1.3 times as wide as anterior width and 0.90 times as wide as head width; dorsolateral surface of pronotum rounded ( Fig. 13A); notauli of scutum slightly curved, reaching posterior margin ( Fig. 13G); scutellum polished, with lateral carina ( Fig. 13G); apico-lateral area of scutellum without longitudinal carina ( Fig. 13G); scrobal sulcus absent ( Fig. 13A); metanotum with two ridges; metanotum 0.31 times as long as scutellum ( Fig. 13G); propodeal angle weakly developed; propodeum without transverse carina above foramen.

WINGS. Forewing ( Fig. 13E) with M absent; cu-a absent; A extending half of Cu+M; R1 0.33 times as long as R; Rs 1.7 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.35 times longer, as wide as tubular part of forefemur; flange on foretibia 0.34 times longer, 0.33 times wider than tubular part of foretibia; flange on midfemur 0.66 times longer, 0.70 times wider than tubular part of midfemur; flange on midtibia 0.58 times longer, 0.33 times wider than tubular part of midtibia; hindcoxa 2.3 times as long as hind trochanter; hindcoxa dorso-laterally carinate; basal part of hindfemur simple; hindfemur basally not stout, as wide as distal part; ventral margin of hindfemur swollen; flange on hindfemur 0.48 times longer, as wide as tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.54 times longer, 0.75 times wider than tubular part of hindtibia.

PILOSITY. Forecoxa with sparse decumbent simple setae; foretibia with sparse decumbent and erect simple setae; midcoxa with sparse decumbent simple setae; midfemur with sparse decumbent and suberect simple setae; midtibia with sparse decumbent and suberect simple setae; hindcoxa with sparse decumbent simple setae; hindfemur with sparse decumbent cuneate setae; 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, Central Vietnam) ( Fig. 27).

Remarks

Loboscelidia fulgens shares a completely lacking M vein with L. bakeri Fouts, 1922 , L. guangxiensis Xu, Weng & He, 2006 and L. reducta . However, L. fulgens can be distinguished from the three species by the following characteristics: head wider than posterior width of pronotum (narrower than posterior width of pronotum in L. bakeri and L. reducta ); R1 0.30 times as long as R (more than 0.50 times as long as R in L. guangxiensis ); a flange on hindtibia more than 0.50 times as wide as tubular part of hindtibia (less wide than hindtibia in L. guangxiensis ); well-developed tibial flanges (lacking in L. reducta ); and propodeum without a transverse carina (with the carina in L. bakeri ).