Loboscelidia mediata Hisasue & Pham & Mita 2023, sp. nov.
Creators: name: Hisasue, Yu
name: Pham, Thai-Hong
name: Mita, Toshiharu
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Chrysididae
Loboscelidia
Loboscelidia mediata

description: Loboscelidia mediata sp. nov.
urn:lsid:zoobank.org:act: 6A304EBB-F336-4F03-99F8-5CB598F9DF78
Figs 2D, 17, 25L
Etymology
Named after the Latin ‘ mediata ’, meaning ‘oblique’, referring to the unusual and deviant morphological characteristics of the genus Loboscelidia.
Type material
Holotype VIETNAM • ♂; Kon Tum Province, Chu Mom Ray NP, Bar Goc Station; 14.434° N, 107.720° E; 31 Apr.–4 May 2014; H.T. Pham; MT; VNMN.
Description
Male (Fig. 17A)
MEASUREMENTS. Body length 2.6 mm; forewing length 2.6 mm.
HEAD. Head (Fig. 17B–D) 1.7 times as long as high, 1.2 times as long as wide; inner ocular length 0.68 times as long as head width; frontal projection rectangular in frontal view (Fig. 17B); apical margion of frontal projection depressed (Fig. 17C); frons polished, with longitudinal striae (Fig. 17C); frons without ridge along inner orbit of eye (Fig. 17C); spraclypeal area with transverse carinae (Fig. 17B); temple 3.2 times as long as MOD (Fig. 17C); POL 1.7 times as long as MOD; OOL 2.4 times as long as MOD; LOL 0.57 times as long as MOD; behind ocelli with transverse depression (Fig. 17C); cervical expansion strongly convex in lateral view (Fig. 17D); basal part of cervical expansion strongly constricted in dorsal view (Fig. 17C); scape 4.4 times as long as wide; scape without longitudinal grooves; scape without transparent flange; F1 2.2 times as long as wide; F2 2.3 times as long as wide; F11 2.3 times as long as wide; relative length of F1–F11: 1.7: 1.4: 1.2: 1.2: 1.0: 1.0: 1.0: 1.0: 1.0: 1.0: 2.3.
MESOSOMA. Pronotum 0.95 times as long as posterior width of pronotum (Fig. 17E); posterior width of pronotum 1.4 times as wide as anterior width and 0. 80 times as wide as head width; dorsolateral surface of pronotum rounded (Fig. 17A); notauli of scutum straight, reaching posterior margin (Fig. 17F); scutellum polished (Fig. 17F); apico-lateral area of scutellum with longitudinal grooves (Fig. 17F); metanotum with two ridges; scrobal sulcus absent (Fig. 17A); metanotum 0.42 times as long as scutellum (Fig. 17F); propodeal angle weakly developed; propodeum without transverse carina above foramen.
WINGS. Forewing (Fig. 17G) with M curved; cu-a absent; A absent; R1 0.29 times as long as R; Rs 2.3 times as long as R.
LEGS. Tibiae smooth, without flanges; flange on forefemur 0.18 times longer, 0.60 times wider than tubular part of forefemur; flange on midfemur 0.16 times longer, 0.33 times wider than tubular part of midfemur; hindcoxa 2.3 times as long as hind trochanter; hindcoxa dorso-laterally carinate; basal part of hindfemur simple; hindfemur basally not stout, as wide as distal part; ventral margin of hindfemur swollen; outer surface of hindfemur smooth; flange on hindfemur 0.20 times longer, 0.60 times wider than tubular part of hindfemur; tarsal claw of hindtibia with one tooth and not extending half of tarsal claw (Fig. 25L).
PILOSITY. Scape with sparse suberect cuneate and forked setae (Fig. 17B); pedicel with sparse suberect cuneate setae; gena and frontal projection with separate ribbon-like setae; dorsal rurface of pronotum with sparse suberect and erect forked setae (Fig. 17E); dorso-frontal margin of pronotum with short ribbon-like setae; lateral surface of pronotum with sparse suberect and erect forked setae; propleuron with sparse suberect and erect forked setae; scutum with sparse suberect and erect forked setae (Fig. 17F); mesopleuron with sparse suberect and erect forked setae; tegula with sparse suberect and erect forked setae; scutellum with dense suberect forked setae; forecoxa with sparse decumbent simple and cuneate setae; foretrochanter with sparse suberect simple setae; midcoxa with sparse decumbent cuneate setae; midtrochanter with sparse suberect simple setae; hindcoxa with sparse decumbent cuneate setae; hindtrochanter with sparse decumbent cuneate setae.
COLORATION. Body reddish brown; antenna reddish brown; legs reddish brown; flanges yellowish brown; ribbon-like setae whitish yellow.
Female
Unknown.
Distribution
Vietnam (Central Vietnam) (Fig. 28).
Remarks
This species can be easily distinguished from other species by the shorter ribbon-like setae and forked setae, similar to another genus Rhadinoscelidia. We assigned this new species to Loboscelidia because it has the developed wing venation; however, other characteristics (e.g., long scape with dense erect or suberect setae; cervical expansion with shorter ribbon-like setae; pronotum with forked erect setae; and tibiae without flanges) are rather similar to those of Rhadinoscelida.
description: Published as part of Hisasue, Yu, Pham, Thai-Hong & Mita, Toshiharu, 2023, Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam, pp. 1-68 in European Journal of Taxonomy 887 (1) on pages 38-40, DOI: 10.5852/ejt.2023.887.2203, http://zenodo.org/record/8222523