Scientific name

Gryon fulviventre (Crawford) (=Hadronotus fulviventris, Gryon fulviventris)

Taxonomic position

Hymenoptera: Platygastroidea: Platygastridae: Scelioninae

Diagnosis

Female: Length: 1mm. Head and thorax black, abdomen ferruginous, legs reddish testaceous, coxa and front femora on basal two-thirds black; scape testaceous, upper side medially brownish; rest of antennae reddish brown, club darker brown; joints of funicle subquadrate; club 6-jointed, each subquadrate; face finely reticulated; mesoscutum finely rugulose, at rear medially becoming distinctly longitudinally so; scutellum longitudinally rugulose, at apex with a row of pits; metathorax with a row of pits and medially at apex with an elevated disk which is longitudinally rugulose; truncation of propodeum with rugulae diverging from center; mesopleurae with a row of pits at front and one at rear, rest of the surface rugulose; metapleurae with a row of pits at front; marginal vein somewhat longer than pedicel of antennae; stigmal almost twice as long as marginal; postmarginal vein over twice as long as stigma. First abdominal segment with a row of pits at base, longitudinally striate, apical margin smooth; second segment with a row of pits at base, back of this with fine reticulations, almost resembling shallow thimble-like punctures; broad apical margin of second segment, smooth; following segments with similar punctures and broad smooth apical margins.

Male: Similar to female, but with abdomen black; antenna brown, except scape; pedicel slightly longer than first joint of funicle, following joints subquadrate, apical joint almost as long as two preceding joints united; sculpture somewhat stronger than in female; middle and hind legs slightly suffused with brown toward base (description from Crawford, 1912).

Head and thorax  head and thorax - lateral view Head and thorax - dorsal and lateral view
Female antenna  Female forewing Female antenna and forewing venation
Abdomen Gaster

Images

Gryon fulviventre adult  Gryon fulviventre adult Adult of Gryon fulviventre in dorsal view
Gryon fulviventre adult profile  Adult in profile  Adult in profile Adult in lateral view

Distribution

Widely distributed in the Oriental and the Afrotropical regions. Commonly collected in India (Karnataka; Kerala; Tamil Nadu).

Hosts / Biology

Originally described from the eggs of Clavigralla gibbosa on pigeon pea from Karnataka, India. Commonly collected as a parasitoid of the eggs of Heteroptera (Coreidae, Pentatomidae, etc.).

References

  • Crawford, J.C. 1912. Descriptions of New Hymenoptera, No. 4. Proceedings, US National Museum, 42: 1-10.
  • Mani, M.S. & Sharma, S.K. 1982. Proctotrupoidea (Hymenoptera) from India: a review. Oriental Insects, 16: 135-258.
  • Platygastroidea of the world (links to literature, keys and images, literature on world fauna).