Loboscelidia squamosa, Hisasue & Pham & Mita, 2023

Loboscelidia squamosa sp. nov.

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Figs 22 View Fig , 25O View Fig , 29–30 View Fig View Fig

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. GoogleMaps

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 View Fig )

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

HEAD. Head ( Fig. 22B–D View Fig ) 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 View Fig ); frons rugose, with transverse grooves ( Fig. 22C View Fig ); frons with low ridge extending from vertex along inner orbit of eye ( Fig. 22C View Fig ); spraclypeal area with transverse carinae ( Fig. 22B View Fig ); temple 0.67 times as long as MOD ( Fig. 22C View Fig ); 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 View Fig ); cervical expansion convex in lateral view ( Fig. 22D View Fig ), with longitudinal grooves; basal part of cervical expansion constricted weakly in dorsal view ( Fig. 22C View Fig ); 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 View Fig ); 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 View Fig ); notauli of scutum slightly curved, reaching posterior margin ( Fig. 22G View Fig ); scutellum polished and punctured and rugose ( Fig. 22G View Fig ); apico-lateral area of scutellum punctured, without longitudinal carina ( Fig. 22G View Fig ); metanotum punctured, without ridge ( Fig. 22G View Fig ); scrobal sulcus present, weakly depressed ( Fig. 22A View Fig ); metanotum 0.39 times as long as scutellum ( Fig. 22G View Fig ); propodeal angle strongly developed; propodeum without transverse carina above foramen.

WINGS. Forewing ( Fig. 22E View Fig ) 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 View Fig ); 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 View Fig ).

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

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.