Rhadinoscelidia chaesonensis, Kimsey, 2018

Kimsey, Lynn S., 2018, Morphology and review of the odd genus Rhadinoscelidia Kimsey, 1988 (Hymenoptera, Chrysididae, Loboscelidiinae), Journal of Hymenoptera Research 62, pp. 45-54 : 49

Rhadinoscelidia chaesonensis sp. n. Figs 9 , 10

Diagnosis.

This species has distinctively small eyes, in lateral view the eye is separated from the vertex apex by more than half its diameter. In addition, the hindtarsal claw is edentate and the vertex is rounded without a transverse ridge or line.

Female description.

Body length 2 mm; forewing length 2.3 mm. Head: length 1.8-1.9 × height in side view; frontal projection shape rectangular in front view, strongly projecting horizontally; frons with shallow wrinkles radiating ventrally from midocellus (Fig. 10 ); vertex elevated, but rounded across hindocelli, without low ridge extending from vertex along inner eye margin, cervical expansion broadly curved in profile, with anterolateral patch of longer, dense ribbon-like setae (Figs 9 , 10 ); occiput laterally with low ridge behind eye backed by short row of broad ribbon-like setae; eye separated from hindocellus by more than 0.5 eye length in lateral view; gena without scale-like setae; scape length 5 × breadth, 0.9-1.0 × head length in side view; flagellomere I length 1.8-2.0 × breadth; flagellomere II length 1.2 × breadth; flagellomere XI length 1.8 × breadth. Mesosoma: highly polished and impunctate; pronotal length 1.5 × breadth; fore and midfemur with short, erect, apically spatulate setae on dorsal surface; hindtibia nearly asetose; hindtarsal claw edentate; forewing venation 0.13 × wing length; R 0.5 × as long as Rs; Cu 0.8 × as long as M (Fig. 10 ). Color: reddish brown; forewing membrane transparent to brown in bands, veins brown.

Male.

Unknown.

Type material.

Holotype female: Thailand: Lampang, Chae Son NP, campground/lavatory, 18°49.894'N, 99°28.354'E 467m, Malaise trap, 1-7/v/2008, B. Kwannui & A. Sukpeng leg., T5309 (QSBG). Paratype female: same data as holotype, except 21-30/v/2008, T5305 (BME).

Distribution.

Thailand: Lampang Prov.

Etymology.

The species is named after the collection site in Chae Son National Park.

Figures

Figures 9 - 11. Lateral view of body. 9, 11 Photographs 10 Diagram. a-c possible secretory sites A anal vein M media R 1 radial vein Rs radial sector.