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Allocerastichus Masi, 1924 comparative info return to: prev home
Antennal radicle elongate
, nearly as long as pedicel; males with nodose flagellomeres. Forewing without fuscate bands, except sometimes apex fuscate; 2 rows of setae radiating from stigmal apex (sometimes a 3rd faint setal track is discernable). Propodeum without median carina. Gt1 with 2 or 3 dorsal carinae in females, 1 in males; last gastral tergite much longer than preceding tergite in females. Compare with: Carlyleia, Euderus.

Allocerastichus wing.JPG (17786 bytes)Allocerastichus female antenna.JPG (8840 bytes)Allocerastichus male antenna.JPG (14114 bytes)
1a-c: Allocerastichus forewing (left), female and male antennae (center and right)

allocerastichus gaster.JPG (16545 bytes)allocerastichus gt1.JPG (8126 bytes)
2a-b: Allocerastichus dorsal view of gaster (left), and lateral view of gt1 (right)

Biology: Probably parasitoids of Ciid beetles.

Comments: 9 described species. Females are easily recognized by the modifications of the first gastral tergite.

Comparative information:

Carlyleia: Antennal radicle not nearly as long as pedicel. No rows of setae radiating from stigma. Gt1 without carinae.

Euderus: Antennal radicle not nearly as long as pedicel. Most species with median propodeal carina (if absent then the propodeum is extremely short medially). Gt1 without carinae. Last gastral tergite usually shorter than preceding tergite in females.

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Boucek, Z. 1963. Studien über europäische Eulophidae, III: Euderinae (Hymenoptera: Chalcidoidea). Beiträge zur Entomologie. 13: 257-281.

Coote, L.D. 1994. Review of Nearctic genera of Euderinae (Hymenoptera: Eulophidae), with descriptions of two new species of Allocerastichus Masi, and redescription of Carlyleia marilandica Girault. Canadian Journal of Zoology. 72: 1044-1054.

Image credits: 1a-c, 2a-b: Coote (1994).