Loboscelidia parallela Hisasue & Pham & Mita 2023, sp. nov.

Loboscelidia parallela sp. nov.

urn:lsid:zoobank.org:act: D512C463-0D4E-4D9F-98A2-3EC86F9D3141

Figs 2B, 18, 25M

Named after the Latin ‘ parallela ’, meaning ‘parallel’, referring to the parallel cervical expansion.

Holotype VIETNAM • ♂; Bac Giang Province, Tay Yen Tu NR; 21°10′52.33″ N, 106°43′24.3″ E; 9 Jul. 2014; T. Mita leg.; VNMN.

Paratype VIETNAM • 1 ♂; same collection data as for holotype; VNMN.

Male (Fig. 18A)

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

HEAD. Head (Fig. 18B–D) 1.9 times as long as high, 1.3 times as long as wide; inner ocular length 0.61 times as long as head width; frontal projection rectangular in frontal view (Fig. 18B); apical margion of frontal projection depressed (Fig. 18C); frons granulate, with microstriae (Fig. 18C); frons with low ridge extending from vertex along inner orbit of eye (Fig. 18C); spraclypeal area with transverse carinae (Fig. 18B); temple as long as MOD (Fig. 18C); POL 1.2 times as long as MOD; OOL 1.7 times as long as MOD; LOL 0.2 times as long as MOD; behind ocelli without transverse depression (Fig. 18C); cervical expansion flattened in lateral view (Fig. 18D); basal part of cervical expansion parallel in dorsal view (Fig. 18C); scape 3.1 times as long as wide; scape with longitudinal grooves; scape with transparent flange; F1 2.0 times as long as wide; F2 1.8 times as long as wide; F11 3.3 times as long as wide; relative length of F1–F11: 1.2: 1.0: 1.1: 1.0: 1.0: 0.9: 1.1: 1.1: 1.1: 1.0: 1.5.

MESOSOMA. Pronotum 0.78 times as long as posterior width of pronotum (Fig. 18E); posterior width of pronotum 1.4 times as wide as anterior width and 1.1 times as wide as head width; dorsolateral surface of pronotum carinate (Fig. 18A); notauli of scutum slightly curved, reaching posterior margin (Fig. 18F); scutellum polished, with lateral carina (Fig. 18F); apico-lateral area of scutellum with longitudinal grooves (Fig. 18F); metanotum with two ridges (Fig. 18F); scrobal sulcus present, weakly depressed (Fig. 18A); metanotum 0.51 times as long as scutellum (Fig. 18F); propodeal angle weakly developed; upper area of propodeum without transverse carina; propodeum without transverse carina above foramen.

WINGS. Forewing (Fig. 18G) with M curved; cu-a 0.50 times as long as R; A extending half of Cu+M; R1 0.83 times as long as R; Rs 3.2 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.49 times longer, 0.85 times wider than tubular part of forefemur; flange on foretibia 0.35 times longer, 0.50 times wider than tubular part of foretibia; flange on midfemur 0.53 times longer, 0.85 times wider than tubular part of midfemur; flange on midtibia 0.59 times longer, 0.29 times wider than tubular part of midtibia; hindcoxa dorso-laterally carinate; basal part of hindfemur producing; hindfemur basally stout, apparently wider than distal part; ventral margin of hindfemur flat; flange on hindfemur 0.61 times longer, 0.80 times wider than tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.68 times longer, 1.2 times wider than tubular part of hindtibia.

PILOSITY. Lower gena with sparse decumbent cuneate setae (Fig. 18D); scape with sparse decumbent and suberect simple setae; forecoxa 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 and cuneate setae.

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

Female

Unknown.

Vietnam (Northern Vietnam) (Fig. 28).

Remarks

Loboscelidia parallela sp. nov. resembles L. cuneata sp. nov. and L. halimunensis; however, it can be distinguished by the following characteristics: femora with simple setae (with cuneate setae in L. cuneata sp. nov.); flange of forefemur 0.85 times as wide as the tubular part (0.25 times as wide as the tubular part in L. cuneata sp. nov.); flange of foretibia 0.50 times as wide as the tubular part (1.5 times as wide as the tubular part in L. cuneata sp. nov.); and curved M vein (straight in L. halimunensis).