Megachalcis carinata Steffan, 1951

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 : 113

Taxon classification Animalia Hymenoptera Chalcididae

Megachalcis carinata Steffan, 1951

Megachalcis carinata Steffan, 1951c: 599 (♀, Vietnam (MNHN)).

Diagnosis.

This species comes near Megachalcis hirticeps Cameron in the key to species by Narendran (1989), but differs from it in having: 1) fore wing more infuscate at base than at apex (in Megachalcis hirticeps fore wing uniformly infuscate); 2) pronotal humps well developed (in Megachalcis hirticeps pronotal humps not well developed); 3) distal tooth of propodeum more robust than proximal one (in Megachalcis hirticeps proximal tooth of propodeum more prominent than distal dent); 4) hind tibia shiny and polished (in Megachalcis hirticeps hind tibia matt), and 5) hollow depression of hind tibia with sparse minute separate pits (in Megachalcis hirticeps hollow depression of hind tibia with contiguous pits).

Description.

(based on the description by Steffan, 1951c).

Head. Head with two relatively small humps in POL; eye height in profile 2.4 × height of malar space in profile, eye length in profile about 0.7 × its height (7:12); antennal length 2.5 × eye height; clava shorter than scape (5:7).

Mesosoma. Pronotum with two well developed humps; mesosoma with apex of scutellum projecting angularly; basal areoles of propodeum not of uniform size; distal tooth of propodeum stronger than proximal tooth.

Wings. Fore wing more infuscated at base than at apex; fore wing 2.8 × as long as wide.

Legs. Hind coxa shorter than hind femur (23:24) without a tooth; hind femur twice as long as wide, with a row of 12-13 irregular teeth on outer ventral margin; hind tibia shiny with hollow depression containing sparse minute pits.

Metasoma. Metasoma (excluding ovipositor sheath) longer than mesosoma (50:31); exserted part of ovipositor sheath 1.3 × length of metasoma, and 2.4 × length of hind femur.

Male. Unknown.

Host.

Unknown.

Distribution.

Vietnam.