Epitranus crassicornis Boucek , 1982

Narendran, T. C. & van Achterberg, Cornelis, 2016, Revision of the family Chalcididae (Hymenoptera, Chalcidoidea) from Vietnam, with the description of 13 new species, ZooKeys 576, pp. 1-202 : 79-81

Taxon classification Animalia Hymenoptera Chalcididae

Epitranus crassicornis Boucek, 1982 Figs 95-96, 97-99

Epitranus crassicornis Bouček, 1982: 608-609 (♀, holotype, Laos (BPBM)).

Material.

1 ♀ (RMNH), "S. Vietnam: Dóng Nai, Cát Tiên N. P., Ficus trail, c. 100 m, 1-9.x.2005, Mal[aise] traps 1-8, C. v. Achterberg & R. de Vries, RMNH’05”; 1 ♀ (BPBM), "Vietnam, Vinh Long, 10.vi.1960, R.E. Leech".

Diagnosis.

This species comes near Epitranus erythrogaster Cameron in the key to species by Bouček (1982) and Narendran (1989), but differs from Epitranus erythrogaster in having: 1) malar space with few setae (in Epitranus erythrogaster malar space setose); 2) ♀ antenna usually short (in Epitranus erythrogaster antenna of ♀ always longer and slenderer); and 3) flagellum and pedicel combined only 1.1 × head width (in Epitranus erythrogaster flagellum and pedicel much longer than 1.1 × head width).

Description.

♀, length of body 3.5 mm.

Colour. Head (except mouth region) black; mesosoma rusty brown with ventral part black; metasoma dark brown; wings hyaline.

Head. Clypeus dorsally concave, pilose, its distal margin vaguely tri-lobed; face with fine sculpture, scrobal part mainly reticulate to finely cross striate; scrobal carinae converging at more acute angle and reaching anterior ocellus; head width 1.3 × its height in anterior view; POL 1.8 × OOL; pedicel plus flagellum 2.5 × as long as scape; scape not reaching anterior ocellus; F1 subquadrate; following segments slightly transverse; clava subconical, twice as long as broad, shorter than 3 preceding segments combined.

Mesosoma. Mesosoma with pilosity on mesoscutum and scutellum slightly golden; propodeum with percurrent median area delimited by distinct submedian carinae which are subparallel-sided.

Legs. Hind femur with 9-10 differently sized teeth on outer ventral margin.

Wings. Wings hyaline, pilosity on fore wing extensive, forming a hairline or steak directed obliquely basad from apex of STV.

Metasoma. Petiole about 6 × as long as broad; metasoma 1.3 × as long as petiole, 1.4 × as long as its height in lateral view and blunt apically.

Male. Unknown.

Host.

Unknown.

Distribution.

Laos, Malaysia and Vietnam ( Narendran 1989).