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 : 24-26

Loboscelidia do sp. nov.

urn:lsid:zoobank.org:act:40BF901C-8D8D-4051-B7F6-1669ABD7E85A

Fig. 11 , 25G

Etymology

The specific name is derived from the Vietnamese word, ‘ do ’ for ‘red’, referring to the reddish body color.

Type material

Holotype VIETNAM • ♂; Bac Kan Province, Ba Be NP ; 22°24′43.34″ N, 105°36′54.76″ E; 4 Jul. 2014; K. Tsujii leg.; VNMN.

Paratypes VIETNAM • 1 ♂; same collection data as for holotype; VNMN • 1 ♂; Bac Giang Province, Tay Yen Tu NR ; 21°10′52.33″ N, 106°43′24.3″ E; 7 Jul. 2014; T. Mita leg.; VNMN .

Description

Male ( Fig. 11A )

MEASUREMENTS. Body length 3.3–3.9 mm; forewing length 3.3–3.7 mm.

HEAD. Head ( Fig. 11B–D ) 1.9–2.3 times as long as high, 1.3 times as long as wide; inner ocular length 0.58–0.59 times as long as head width; frontal projection rectangular in frontal view ( Fig. 11B ); apical margin of frontal projection depressed ( Fig. 11C ); frons polished, with low ridge extending from vertex along inner orbit of eye ( Fig. 11C ); frons with indistinct carinae towards posterior ocelli ( Fig. 11C ); spraclypeal area without transverse carinae ( Fig. 11B ); temple 0.39–0.50 times as long as MOD ( Fig. 11C ); POL 0.85–1.1 times as long as MOD; OOL as long as MOD; LOL 0.17 times as long as MOD; behind ocelli without transverse depression ( Fig. 11C ); cervical expansion convex in lateral view ( Fig. 11D ); basal part of cervical expansion constricted weakly in dorsal view ( Fig. 11C ); scape 2.2–2.7 times as long as wide; scape with one longitudinal groove extending apical margin; scape with transparent flange, 0.85 times as long as tubular part of scape, 0.25 times wider than tubular part of scape; F1 1.8–2.0 times as long as wide; F2 1.7–2.1 times as long as wide; F11 3.4–3.9 times as long as wide; relative length of F1–F11: 1.0: 1.1: 1.1: 1.1: 1.1: 1.1: 1.1: 1.1: 1.2: 1.2: 1.6.

MESOSOMA. Pronotum 0.82 times as long as posterior width of pronotum ( Fig. 11F ); 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 carinate ( Fig. 11A ); notauli of scutum slightly curved, reaching posterior margin ( Fig. 11G ); scutellum polished and inpunctured, with lateral carina ( Fig. 11G ); scrobal sulcus present, deeply depressed ( Fig. 11A ); metanotum with medial ridge, 0.44–0.47 times as long as scutellum ( Fig. 11G ); propodeal angle weakly developed; propodeum with transverse carina above foramen and not connected upper area.

WINGS. Forewing ( Fig. 11E ) with M curved; cu-a 0.29–0.40 times as long as R; A extending half of Cu+M; R1 0.60–0.71 times as long as R; Rs 2.7–3.3 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.71–0.77 times longer, 1.0–1.3 times wider than tubular part of forefemur; flange on foretibia 0.63–0.75 times longer, 1.3–2.0 times wider than tubular part of foretibia; flange on midfemur 0.72–0.76 times longer, 1.0–1.5 wider than tubular part of midfemur; flange on midtibia 0.74–0.76 times longer, 0.89–1.0 times wider than tubular part of midtibia; hindcoxa 2.0 times as long as hind trochanter; postero-lateral margin of hind coxa with longitudinal carinae; basal part of hindfemur strongly producing; hindfemur basally stout, apparently wider than distal part; ventral margin of hindfemur flat; outer surface of hindtibia smooth; flange on hindfemur 0.60–0.85 times longer, 0.90–1.0 times wider than tubular part of hindfemur; flange on hindtibia 0.83–0.89 times longer, 1.8–2.0 times wider than tubular part of hindtibia; median tooth of tarsal claw far beyond half of tarsal claw (25G).

PILOSITY. Spraclypeal area with sparse erect simple setae ( Fig. 11B ); temple with sparse suberect simple setae ( Fig. 11C ); lower gena with sparse decumbent simple setae ( Fig. 11D ); frons with sparse decumbent simple setae ( Fig. 11C ); around spiracle of propodeum with sparse decumbent simple setae; forefemur and foretibia with dense decumbent simple setae; dorsal surface of forefemur, foretibia, midtibia and hindtibia with sparse suberect simple setae.

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

Female

Unknown.

Distribution

Vietnam (Northern Vietnam) ( Fig. 27 ).

Remarks

Loboscelidia do sp. nov. resembles L. cuneata sp. nov., L. parallela sp. nov. and L. pecki Kimsey, 2012 in the following characteristics: reddish brown body color; rectangular frontal projection; F1 and F2 nearly twice as long as wide; transverse carina absent behind ocelli; flat ventral margin of the hindfemur. However, L. do sp. nov. can be distinguished by the following characteristics: frons with setae ( L. cuneata sp. nov. without setae); scape less than 3.0 times as long as wide (more than 3.0 times as long as wide in other species); femora with simple setae ( L. cuneata sp. nov. with cuneate setae); basal of cervical expansion weakly constricted (other two species parallel); R1 vein less than 0.80 times as long as R (as long as R in L. pecki ), and cu-a vein longer than 0.29 times as long as R (absent or slightly present in L. pecki ).

Figures

Fig. 11. Loboscelidia do sp. nov., holotype, ♂ (VNMN). A. Lateral habitus. B. Head, frontal view. C. Head, dorsal view. D. Head, lateral view. E. Forewing. F. Pronotum, dorsal view. G. Mesosoma, dorsal view. Scale bars: A, E–G = 0.5 mm; B–D = 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. 27. Distribution map of Loboscelidia spp. in Vietnam. L. cuneata sp. nov. (purple circles). L. defecta Kieffer, 1916 (gold circle). L. do sp. nov. (white circles). L. flavipes sp. nov. (black circle). L. fulgens Kimsey, 2012 (light blue circles). L. glabra sp. nov. (brown circle).