Loboscelidia, Westwood, 1874

Hisasue, Yu, Pham, Thai-Hong & Mita, Toshiharu, 2023, Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam, European Journal of Taxonomy 887 (1), pp. 1-68 : 12-14

Loboscelidia cilia sp. nov.

urn:lsid:zoobank.org:act:

Figs 6, 25C

Etymology

Named after the Latin ‘ cilia ’, meaning ‘eyelash’, referring to the conspicuous setae on the eye.

Type material

Holotype

VIETNAM • ♂; Thua Thien Hue Province , Bach Ma NP, 19 km point; 16.198° N, 107.860° E; 2 Aug. 2016; T. Mita leg.; VNMN.

Description

Male ( Fig. 6A)

MEASUREMENTS. Body length 3.1 mm; forewing length 3.0 mm.

HEAD. Head ( Fig. 6B–D) 2.0 times as long as high, 1.2 times as long as wide; inner ocular length 0.66 times as long as head width; frontal projection rectangular in frontal view ( Fig. 6B); frons polished and unpunctured, with high ridge extending from behind posterior ocellus along inner orbit of eye ( Fig. 6C); frons with distinct frontal line ( Fig. 6C); spraclypeal area with transverse carinae ( Fig. 6B); temple 2.0 times as long as MOD ( Fig. 6C); POL 1.1 times as long as MOD; OOL 1.8 times as long as MOD; LOL 0.5 times as long as MOD; behind ocelli with transverse depression ( Fig. 6C); cervical expansion strongly convex in lateral view ( Fig. 6D); basal part of cervical expansion constricted strongly in dorsal view ( Fig. 6C); scape 3.5 times as long as wide; scape smooth, without longitudinal grooves; scape with transparent flange, 0.7 times as long as tubular part of scape, 0.14 times as wide as tubular part of scape; F1 2.3 times as long as wide; F2 2.5 times as long as wide; F11 3.1 times as long as wide; relative length of F1–F11: 1.1: 1.1: 1.1: 1.1: 1.1: 1.0: 1.0: 1.0: 1.0: 1.1: 1.5.

MESOSOMA. Pronotum 0.68 times as long as posterior width of pronotum ( Fig. 6E); 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 rounded ( Fig. 6F); notauli of scutum slightly curved, not reaching posterior margin ( Fig. 6F); scutum between notauli punctured ( Fig. 6F); scutellum punctured, with lateral carina ( Fig. 6F); scrobal sulcus present, deeply depressed ( Fig. 6A); apico-lateral area of scutellum without longitudinal carina ( Fig. 6F); metanotum with medial ridge, 0.44 times as long as scutellum ( Fig. 6F); propodeal angle strongly developed; upper area of propodeum without transverse carina; propodeum without transverse carina above foramen.

WINGS. Forewing ( Fig. 6G) with M curved; cu-a 1.2 times as long as R; A as long as Cu+M; R1 as long as R; Rs 4.3 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.29 times longer, 0.73 times wider than tubular part of forefemur; flange on foretibia 0.51 times longer, 0.33 times wider than tubular part of foretibia; flange on midfemur 0.27 times longer, 0.40 times wider than tubular part of midfemur; flange on midtibia 0.42 times longer, 0.33 times wider than tubular part of midtibia; hindcoxa 1.7 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; flange on hindfemur 0.69 times longer, 0.67 times wider than tubular part of hindfemur; outer surface of hindtibia smooth; flange on hindtibia 0.54 times longer, as wide as tubular part of hindtibia.

METASOMA. Lateral margin of T1 with low ridge.

PILOSITY. Frons with sparse erect simple setae ( Fig. 6C); eye with sparse erect simple setae ( Fig. 6B–C); temple with sparse erect simple setae ( Fig. 6C); lower gena with sparse erect simple setae ( Fig. 6D); scape with sparse suberect and erect simple setae ( Fig. 6B); pedicel with sparse erect simple setae; dorsal part of pronotum with sparse decumbent and erect simple setae; scutum with sparse erect simple setae; tegula with sparse erect simple setae; lateral side of scutellum with sparse decumbent simple setae; midtibia with sparse erect simple setae; hindtibia with sparse erect simple setae; lateral margin of T2 with sparse erect simple setae.

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

Female

Unknown.

Distribution

Vietnam (Central Vietnam) ( Fig. 26).

Remarks

Loboscelidia cilia sp. nov. resembles L. reducta and L. cinnamonea Kimsey, 2012 in having the following characteristics: strongly convex cervical expansion, with transverse carina behind ocelii, without tibial flanges. However, L. cilia sp. nov. can be distinguished by the following characteristers: erect setae on the eye (without setae in the other two species); complete M vein (absent in L. reducta ); and cu-a and R1 present (cu-a absent in the other two species, R1 absent in L. cinnamonea ).