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Astichus Förster, 1856 return to: prev home
Females usually with 1 or 2 white funicular segments in contrast to the other segments; males with nodose flagellomeres each bearing a whorl of erect setae. Forewing with fuscate regions, usually transverse bands; without rows of setae radiating from stigmal apex (except 1 possible row radiating from uncus). Propodeum without median carina. Head and mesosoma usually metallic striped, rarely partly yellowish.

1a-b: Astichus forewings

         
2a-c: Astichus arithmeticus (Förster) female (left), and male (center) antennae, and A. tauricus Boucek female antenna (right, atypical of genus)

Biology: Parasitoids of Ciids and Tenebrionids.

Comments: 26 described species. Usually easily recognized by forewing markings, but body often small and shriveled.

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References

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.

Schauff, M.E., J. LaSalle, & L.D. Coote. 1997. Chapter 10. Eulophidae. in "Annotated Keys to the Genera of Nearctic Chalcidoidea (Hymenoptera)". G.A.P. Gibson & J.T. Huber, eds. NRC Research Press, Ottawa.

Yoshimoto, C. 1970. A new species of Astichus (Hymenoptera: Eulophidae) associated with the birch bracket fungus Polyporus betulinus and woody fungus Ganoderma applanatum in eastern Canada. Canadian Entomologist. 102: 656-659.

Image credits: 1a-b: Schauff, et al. (1997). 2a-c: Boucek (1963).