Loboscelidia barbata, Hisasue & Pham & Mita, 2023

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 : 9-12

publication ID	https://doi.org/ 10.5852/ejt.2023.887.2203
publication LSID	lsid:zoobank.org:pub:788AE14A-0698-4C42-819C-BC2412F76FCA
DOI	https://doi.org/10.5281/zenodo.8224862
persistent identifier	https://treatment.plazi.org/id/CF92A69F-EE81-4B29-9165-F6FA8EE078B9
taxon LSID	lsid:zoobank.org:act:CF92A69F-EE81-4B29-9165-F6FA8EE078B9
treatment provided by	Felipe
scientific name	Loboscelidia barbata
status	sp. nov.

Treatment

Loboscelidia barbata sp. nov.

urn:lsid:zoobank.org:act:CF92A69F-EE81-4B29-9165-F6FA8EE078B9

Figs 3A View Fig , 5 View Fig , 25B View Fig

Etymology

Named after the Latin ‘ barbata ’, meaning ‘beard’, referring to the scale-like setae on the lower gena.

Type material

Holotype VIETNAM • ♂; Thua Thien Hue Province, Bach Ma NP , pheasant trail; 16.231° N, 107.852° E; 4 Aug. 2016; T. Mita leg.; VNMN. GoogleMaps

Paratypes VIETNAM • 9 ♂♂; same collection data as for holotype; VNMN GoogleMaps • 1 ♂; same collection data as for holotype but 15 Sep. 2022; VNMN GoogleMaps • 1 ♂; same locality data as for holotype; 16 Sep. 2022; Y. Hisasue leg.; VNMN GoogleMaps • 4 ♂♂; Thua Thien Hue Province, Bach Ma NP , Stone Sign ; 16.194° N, 107.865° E; 2 Aug. 2016; T. Mita leg.; VNMN GoogleMaps • 1 ♂; Vinh Phuc Province, Tam Dao District, Tam Dao NP ; 21.453° N, 105.648° E; 4 Aug. 2016; K. Tsujii leg.; VNMN GoogleMaps .

Description

Male ( Fig. 5A View Fig )

MEASUREMENTS. Body length 3.8–5.2 mm; forewing length 3.4–5.0 mm.

HEAD. Head ( Fig. 5B–D View Fig ) 1.8–1.9 times as long as high, 1.2–1.4 times as long as wide; inner ocular length 0.58 times as long as head width; frontal projection rectangular in frontal view ( Fig. 5B View Fig ); apical margin of frontal projection depressed ( Fig. 5C View Fig ); frons rugose, with low ridge extending from vertex along inner orbit of eye ( Fig. 5C View Fig ); frons with indistinct wrinkles towards median ocellus ( Fig. 5C View Fig ); frons with frontal line ( Fig. 5C View Fig ); spraclypeal area with transverse carinae ( Fig. 5B View Fig ); ftemple 0.50–0.71 times as long as MOD ( Fig. 5C View Fig ); POL 1.3–1.4 times as long as MOD; OOL 1.4–1.5 times as long as MOD; LOL 0.42–0.43 times as long as MOD; behind ocelli without transverse depression ( Fig. 5C View Fig ); cervical expansion convex in lateral view ( Fig. 5D View Fig ); cervical expansion with longitudinal furrow ( Fig. 5C View Fig ); basal part of cervical expansion constricted weakly in dorsal view ( Fig. 5C View Fig ); scape 2.9–3.2 times as long as wide; scape with longitudinal grooves; scape with transparent flange; F1 2.0–2.3 times as long as wide; F2 2.2–2.3 times as long as wide; F11 3.8 times as long as wide; relative length of F1–F11: 1.2: 1.2: 1.1: 1.1: 1.1: 1.0: 1.1: 1.0: 1.1: 1.1: 1.5.

MESOSOMA. Pronotum 0.79–0.81 times as long as posterior width of pronotum ( Fig. 5E View Fig ); posterior width of pronotum 1.5–1.6 times as wide as anterior width and 1.2 times as wide as head width; dorsolateral surface of pronotum carinate ( Fig. 5A View Fig ); notauli of scutum slightly curved, reaching posterior margin ( Fig. 5F View Fig ); scutellum punctured ( Fig. 5F View Fig ); scrobal sulcus present, weakly depressed ( Fig. 5F View Fig ); metanotum punctured, without ridge, 0.37–0.42 times as long as scutellum ( Fig. 5F View Fig ); propodeal angle strongly developed; upper area of propodeum without transverse carina; propodeum without transverse carina above foramen.

WINGS. Forewing ( Fig. 5G View Fig ) with M curved; cu-a 0.88–0.92 times as long as R; A longer than Cu+M; R1 0.43–0.54 times as long as R; Rs 2.4–2.8 times as long as R.

LEGS. Tibiae carinate; flange on forefemur 0.59–0.63 times longer, 0.90–1.1 times wider than tubular part of forefemur; flange on foretibia 0.57–0.58 times longer, 0.86–1.0 times wider than tubular part of foretibia; flange on midfemur 0.50–0.71 times longer, 0.70–0.80 times wider than tubular part of midfemur; flange on midtibia 0.62–0.68 times longer, 0.71–1.0 times wider than tubular part of midtibia; dorsolateral margin of hindcoxa with longitudinal carinae; basal part of hindfemur producing; hindfemur basally stout, slightly wider than distal part; ventral margin of hindfemur flat; outer surface of hindfemur carinate; flange on hindfemur 0.58–0.74 times longer, 0.91–0.92 times wider than tubular part of hindfemur; flange on hindtibia 0.75–0.83 times longer, 0.96–1.1 times wider than tubular part of hindtibia.

PILOSITY. Spraclypeal area with sparse decumbent and suberect cuneate setae ( Fig. 5B View Fig ); temple with sparse decumbent cuneate setae ( Fig. 5C View Fig ); lower gena with sparse decumbent scale-like setae ( Fig. 5D View Fig ); hypostoma with sparse decumbent scale-like setae; scape with sparse decumbent simple and cuneate setae; pedicel with sparse decumbent simple and cuneate setae; scutellum without setae ( Fig. 5F View Fig ); forecoxa with sparse decumbent cuneate setae; foretrochanter with sparse decumbent cuneate setae; forefemur with sparse decumbent cuneate setae; foretibia with sparse decumbent cuneate setae; midcoxa, midtrochanter, midfemur and midtibia with sparse decumbent cuneate setae; hindcoxa, hindtrochanter, hindfemur and hindtibia with sparse decumbent cuneate setae.

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

Female

Unknown.

Distribution

Vietnam (Northern Vietnam, Central Vietnam) ( Fig. 26 View Fig ).

Remarks

Loboscelidia barbata sp. nov. resembles L. convexa sp. nov. and L. sisik in having the following characteristics: reddish brown ( L. convexa sp. nov.) to dark brown ( L. sisik ) body color, scale-like setae on the lower gena, and cervical expansion with longitudinal furrow ( L. convexa sp. nov.). However, L. barbata sp. nov. can be distinguished by the following characteristics: rectangular frontal projection (triangular in L. sisik ); strongly convex cervical expansion (weakly convex in L. sisik ); cervical expansion with longitudinal furrow ( L. sisik without longitudinal furrow); scape 2.9 times as long as wide (twice as long as wide in L. sisik ); pronotum 0.80 times as long as posterior width (0.70 times as long as the posterior width in L. convexa sp. nov.); metanotum that 0.40 times as long as scutellum (more than 0.50 times as long as the scutellum in L. convexa sp. nov.); midtibial flange present ( L. sisik absent); and longer A vein longer than Cu + M (as long as Cu + M in L. sisik ).