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:600A8093-65A6-425E-B4E7-8FA7A7531515

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 ).

Figures

Fig. 6. Loboscelidia cilia sp. nov., holotype, ♂ (VNMN). A. Lateral habitus. B. Head, frontal view. C. Head, dorsal view. D. Head, lateral view. E. Pronotum, dorsal view. F. Mesosoma, dorsal view. G. Forewing. Scale bars: A, D–G = 0.5 mm; B–C = 0.2 mm.

Fig. 25. Hind tarsal claw of Loboscelidia Westwood, 1874. A. L. bachmaensis sp. nov. B. L. barbata sp. nov. C. L. cilia sp. nov. D. L. convexa sp. nov. E. L. cucphuongensis sp. nov. F. L. cuneata sp. nov. G. L. do sp. nov. H. L. flavipes sp. nov. I. L. fulgens Kimsey, 2012. J. L. glabra sp. nov. K. L. komedai sp. nov. L. L. mediata sp. nov. M. L. parallela sp. nov. N. L. piriformis sp. nov. O. L. squamosa sp. nov. P. L. vang sp. nov. Q. L. vietnamensis sp. nov.

Fig. 26. Distribution map of Loboscelidia spp. in Vietnam. L. asiana Kimsey, 1988 (read circle). L. bachmaensis sp. nov. (dark blue circle). L. barbata sp. nov. (yellow circles). L. cilia sp. nov. (green circle). L. convexa sp. nov. (pink circle). L. cucphuongensis sp. nov. (gray circles).