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

Loboscelidia squamosa sp. nov.

urn:lsid:zoobank.org:act: 748BCA32-71CC-4F1E-B37E-65254E040FBE

Figs 22, 25O, 29–30

Etymology

Named after the Latin ‘ squamosa ’, meaning ‘a scale’, referring to the scale-like setae on the body.

Type material

Holotype VIETNAM • ♀; Thua Thien Hue Province, Bach Ma NP, 19 km point; 16.198° N, 107.860° E; 3–6 Jul. 2016; T. Mita and Y. Komeda leg.; YPT; VNMN.

Paratypes VIETNAM • 1 ♀; Ninh Binh Province, Cuc Phuong Natonal Park; 27 Aug. 2019; Y. Hisasue leg.; VNMN • 1 ♀; same locality as for preceding; 21 Aug. 2019; Y. Hisasue et al. leg.; FIT; VNMN.

Description

Female (Fig. 22A)

MEASUREMENTS. Body length 4.7 mm; forewing length 4.2 mm.

HEAD. Head (Fig. 22B–D) 1.7 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. 22C); frons rugose, with transverse grooves (Fig. 22C); frons with low ridge extending from vertex along inner orbit of eye (Fig. 22C); spraclypeal area with transverse carinae (Fig. 22B); temple 0.67 times as long as MOD (Fig. 22C); POL 1.6 times as long as MOD; OOL 2.8 times as long as MOD; LOL 0.60 times as long as MOD; behind ocelli with transverse depression (Fig. 22C); cervical expansion convex in lateral view (Fig. 22D), with longitudinal grooves; basal part of cervical expansion constricted weakly in dorsal view (Fig. 22C); scape 3.2 times as long as wide; scape with longitudinal grooves; scape with transparent flange, 0.29 times as long as tubular part of scape, 0.67 times as wide as tubular part of scape; F1 1.4 times as long as wide; F2 1.1 times as long as wide; F11 1.1 times as long as wide; relative length of F1–F11: 2.0: 1.5: 1.3: 1.2: 1.1: 1.0: 1.0: 1.0: 0.8: 0.8: 1.1.

MESOSOMA. Pronotum 0.70 times as long as posterior width of pronotum (Fig. 22F); posterior width of pronotum 1.6 times as wide as anterior width and 1.1 times as wide as head width; dorsolateral surface of pronotum carinate (Fig. 22A); notauli of scutum slightly curved, reaching posterior margin (Fig. 22G); scutellum polished and punctured and rugose (Fig. 22G); apico-lateral area of scutellum punctured, without longitudinal carina (Fig. 22G); metanotum punctured, without ridge (Fig. 22G); scrobal sulcus present, weakly depressed (Fig. 22A); metanotum 0.39 times as long as scutellum (Fig. 22G); propodeal angle strongly developed; propodeum without transverse carina above foramen.

WINGS. Forewing (Fig. 22E) with M curved; cu-a 1.3 times as long as R; A extending Cu+M; R1 0.90 times as long as R; Rs 3.3 times as long as R.

LEGS. Femora and tibiae longitudinally carinate (Fig. 22A); tibiae without transparent flanges but transformed flattened toward ventral margin; flange on forefemur 0.61 times longer, as wide as tubular part of forefemur; flange on midfemur 0.67 times longer, 1.7 times wider than tubular part of midfemur; hind coxa 1.8 times as long as hind trochanter; hind coxa dorso-laterally carinate; basal part of hindfemur producing, strongly producing, simple; hindfemur basally stout, apparently wider than distal part; ventral margin of hindfemur flat; outer surface of hindfemur smooth; flange on hindfemur 0.49 times longer, 0.92 times wider than tubular part of hindfemur; hind tarsal claw with one median tooth, not reaching to tarsal claw (Fig. 25O).

PILOSITY. Frons with dense decumbent scale-like setae (Fig. 22B); spraclypeal area with dense decumbent scale-like setae (Fig. 22B); eye with dense decumbent scale-like setae (Fig. 22B); temple with dense decumbent cuneate and scale-like setae (Fig. 22D); lower gena with dense decumbent scale-like setae (Fig. 22D); cervical expansion with dense decumbent scale-like setae (Fig. 22C); hypostoma with dense decumbent cuneate and scale-like setae; scape with dense decumbent cuneate setae; pedicel with dense decumbent cuneate setae; F1 with dense decumbent cuneate setae (Fig. 22A–B); dorsal surface of pronotum with dense decumbent cuneate setae (Fig. 22F); lateral surface of pronotum with dense decumbent cuneate setae (Fig. 22A); propleuron with dense decumbent cuneate setae (Fig. 22A); scutum with dense decumbent cuneate setae (Fig. 22F); mesopleuron with dense decumbent cuneate setae (Fig. 22A); tegula with dense decumbent cuneate setae (Fig. 22G); scutellum with dense decumbent cuneate setae (Fig. 22G); lateral surface of propodeum with dense decumbent cuneate setae (Fig. 22A); legs with dense decumbent scale-like setae (Fig. 22A); lateral margin of T4 with sparse decumbent cuneate and scale-like setae.

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

Male

Unknown.

Distribution

Vietnam (Northern Vietnam, Central Vietnam) (Fig. 29).

Host

Oxyartes sp. (Lonchodidae: Necrosciinae) based on the foraging behavior of a female.

Remarks

This new species can be easily distinguished from any other species by the dense scale-like setae on the body. A paratype female (Cuc Phuong, 21 August 2019) was collected by FIT at night (9 p. m.). The female attacks the eggs of Oxyartes sp. and buries them in the soil. Details of the foraging behavior are provided in the discussion.