Taxon classification Animalia Hymenoptera Chalcididae

Dirhinus secundarius Masi, 1933

Dirhinus secundarius Masi, 1933: 10-11 (♀, Taiwan, (syntypes) (MNHN)); Habu 1960: 131-363 (redescription); Narendran 1989: 290, 301 (keyed).

Description

(based on Habu 1960). ♀.

Colour. Black with following parts as follows: tegulae reddish brown; fore and mid trochanters brown; fore and mid femora reddish black with base and apex brown; fore and mid tibiae brown with basal half slightly reddish; tarsi pale brown; claws and arolium somewhat dark; wings hyaline with somewhat brownish tinge; veins pale brown or dark reddish. Pubescence on body silvery (in some specimen golden dorsally).

Head. Head with horns slightly diverging towards apex, apex with a distinct notch; horns a little wider than space between them; a little more than one-third as long as head; twice as long as wide. Antenna inserted at level of ventral margin of eyes; anterior tentorial pits distinctly delimited by longitudinal carina at outer margin, not distinctly smooth; height of malar space 0.6 × major axis of compound eye; antenna with scape longer than combined length of F1 to F3, 2.1 × as long as clava; F1 a little longer than F2 (12:10); clava about 2.6 × as long as F7.

Mesosoma. Mesosoma with scutellum a little longer than wide, with close pits, interstices carinate; median areola of propodeum subparallel-sided, distinctly longer than wide, with fine secondary carinae; depression posterior to median areola long, lateral costae with two teeth; anterior tooth behind spiracle distinct, posterior tooth small.

Wings. Fore wing with MV 1.2 × as long as SMV.

Metasoma. Petiole slightly longer than wide (12:10) with 4 longitudinal carinae; metasoma a little longer than combined length of pronotum, mesoscutum and scutellum; T1 almost reaching middle of metasoma, with 8 long and six short carinae at base, with posterior margin not straight but produced posteriorly in middle.

Host.

Unknown.

Distribution .

China (Taiwan), Japan.

Remarks.

This species is not known from Vietnam, but included here because it may occur in North Vietnam.