Scientific name

Dinarmus vagabundus (Timberlake, 1926)

Taxonomic position

Hymenoptera: Chalcidoidea: Pteromalidae: Pteromalinae

Diagnosis

Body length 2.3 mm. Head and mesosoma black, non metallic, finely and closely reticulate with punctations, with sparse but conspicuous white pubescence; metasoma brown black with metallic shine and devoid of pubescence. Scape and pedicel pale brown yellow, flagellum darker brown. Tegula dark brown; wings hyaline veins yellow. Head wider than mesosoma; metasoma ovate and depressed, shorter than head and mesosoma combined. Antenna inserted little above lower margin of eye; POL little longer than OOL; scape reaching median ocellus; pedicel sub equal to F1 in length; third anellus quadrate. Mandibles quadridentate. Mesosoma robust in appearance. Fore wing with discal pubescence short, fine and indistinct, post marginal vein distinctly shorter than marginal vein (about 3/4th as long as marginal vein) and sub equal to stigma vein. Propodeum closely puncto-reticulate, shiny, with short nucha.

 Female antenna
 Female mesosoma
 Female metasoma

Image

 Female - profile view

Distribution

India: Punjab, Karnataka, Tamil Nadu, and Kerala.

Biology / Hosts

Parasitic on bruchids- Bruchus spp., Callosobruchus chinensis, Callosobruchus spp. etc.

References

  • Noyes, J.S. 2013. Universal Chalcidoidea Database. World Wide Web electronic publication. http://www.nhm.ac.uk/chalcidoids.
  • Sureshan, P.M. 2003. Pteromalinae (Pteromalidae: Chalcidoidea: Hymenoptera) of Indian subcontinent. Records of the Zoological Survey of India, Occasional Paper 205: iii+170pp.
  • Sureshan, P.M. 2012. Checklist of Pteromalidae (Insecta: Hymenoptera: Chalcidoidea) of India. ZSI, Western Ghats regional centre, Kozhikode, Kerala. 15pp.
  • Timberlake, P.H. 1926. New species of Hawaiian chalcid flies (Hymenoptera). Proceedings of the Hawaiian Entomological Society 6: 305.