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

Loboscelidia komedai sp. nov.

urn:lsid:zoobank.org:act: 7D4199E6-8EAF-4828-B589-E46ABA1BB314

Figs 15, 25K

The specific name is in honor of Dr Yoto Komeda who collected the holotype of this new species.

Holotype VIETNAM • ♂; Thua Thien Hue Province, Bach Ma NP, rhododendron trail; 16.192° N, 107.849° E; 3 Aug. 2016; Y. Komeda leg.; VNMN.

Paratypes VIETNAM • 1 ♂, same locality data as for holotype; 3–6 Aug. 2016; YPT; VNMN • 1 ♂; Thua Thien Hue Province, Bach Ma NP, phaesant trail; 16.231° N, 107.852° E; 4 Aug. 2016; T. Mita leg.; VNMN.

Male (Fig. 15A)

MEASUREMENTS. Body length 3.9–4.1 mm; forewing length 3.9–4.1 mm.

HEAD. Head (Fig. 15B–D) 1.8–1.9 times as long as high, 1.3 times as long as wide; inner ocular length 0.55–0.61 times as long as head width; frontal projection rectangular in frontal view (Fig. 15B); apical margin of frontal projection straight (Fig. 15C); frons granulate (Fig. 15C); frons with low ridge extending from vertex along inner orbit of eye; frons with indistinct carina towards median ocellus (Fig. 15C); spraclypeal area with transverse carinae (Fig. 15B); temple 0.43–0.86 times as long as MOD (Fig. 15C); POL 1.5–1.6 times as long as MOD; OOL 1.3–2.0 times as long as MOD; LOL 0.29–0.57 times as long as MOD; behind ocelli without transverse depression (Fig. 15C); cervical expansion weakly convex in lateral view (Fig. 15C); basal part of cervical expansion constricted weakly in dorsal view (Fig. 15C); scape 2.5–2.6 times as long as wide; scape with longitudinal grooves; F1 1.6–2.6 times as long as wide; F2 1.5–2.8 times as long as wide; F11 3.4–3.8 times as long as wide; relative length of F1–F11: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 1.4.

MESOSOMA. Pronotum 0.81–0.83 times as long as posterior width of pronotum (Fig. 15F); posterior width of pronotum 1.4–1.7 times as wide as anterior width and 1.1–1.2 times as wide as head width; dorsolateral surface of pronotum carinate (Fig. 15A); notauli of scutum slightly curved, reaching posterior margin (Fig. 15G); scutellum punctured and rugose; scrobal sulcus present, weakly depressed (Fig. 15G); metanotum with medial ridge (Fig. 15G), 0.39–0.46 times as long as scutellum; propodeal angle weakly developed (Fig. 15G); upper area of propodeum without transverse carina; propodeum without transverse carina above foramen.

WINGS. Forewing (Fig. 15E) with M curved; cu-a 0.72–0.80 times as long as R; A extending half of Cu+M; R1 0.60–0.67 times as long as R; Rs 2.7–3.1 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.64–0.66 times longer, 0.70–0.92 times wider than tubular part of forefemur; flange on foretibia 0.50–0.63 times longer, 0.63–0.73 times wider than tubular part of foretibia; flange on midfemur 0.71–0.83 times longer, 0.75–1.0 times wider than tubular part of midfemur; flange on midtibia 0.58–0.68 times longer, 0.56–0.80 times wider than tubular part of midtibia; hindcoxa 1.8 times as long as hind trochanter; hindcoxa 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 0.77–0.86 times longer, 0.79–0.9 times wider than tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.67–0.75 times longer, 1.5–1.7 times wider than tubular part of hindtibia; median tooth of tarsal claw extending half of tarsal claw.

PILOSITY. Spraclypeal area with erect simple setae (Fig. 15B); lower gena with sparse decumbent simple setae; scape with sparse decumbent simple setae; dorsal and lateral surfaces of pronotum with sparse decumbent cuneate setae (Fig. 15F); forefemur with sparse decumbent and suberect simple setae; midfemur with sparse decumbent simple setae; midtibia with sparse decumbent simple setae; hindfemur with sparse decumbent simple setae; hindtibia with sparse decumbent simple setae; hindcoxa with sparse decumbent simple setae.

COLORATION. Body reddish brown to blackish brown; scutum, scutellum and metanotum blackish brown; ribbon-like setae yellowish brown; flanges yellowish brown.

Female

Unknown.

Vietnam (Central Vietnam) (Fig. 28).

This species resembles L. sarawakensis Kimsey, 1988 in having a darker body color, scrobal sulcus, and scape more than twice as long as wide. However, it can be distinguished by the following combination of characteristics: rectangular frontal projection (L. sarawakensis triangular); transverse depression absent behind ocelli (L. sarawakensis with transverse depression).