Parasitic Wasps
 
                 
 
 
 
 
 

 

Family CHALCIDIDAE - Chalcid Wasps

All members in Chalcididae are parasitic. They are small wasps. Most attack pupae of moths, butterflies and Diptera. Some parasite other wasps or beetles. 

Body length 5mm
 
Chalcid Wasps are easily recognizable by their greatly swollen hind femora and bent hind tibiae. 

 
Jezabel Parasitoid
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Brachymeria aurea, subfamily Chalcidinae, body length 10mm 
We found two Black Jezabel  Butterfly pupas in late summer. We brought them home and see if we were able to see the butterflies come out. Two weeks later, the pupas became darker in colour. We knew it was not a good sign. This might indicate that the pupas were parasite by wasp or fly. Then two days later, we saw a Chalcid Wasp came out from one of the pupas. More information and pictures please visit this page.
 
 
Pupal Parasite Chalcid
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Brachymeria ovata, pupa length 15mm, wasp body length 5mm 
We found the moth pupa in a front yard during early summer. We brought it home and waited to see what kind of moth it would be. However we end up saw a small wasp came out from the Pupa. This wasp is shiny black in colour with yellow legs. Its wings are dark in colour. Its hind legs are enlarged. Its black antenna are short and elbowed. This wasp is known parasite on pupae from many species include butterfly, moth, wasp, and Tachinidae that parasitising moth. More pictures information can be found un this page.
 

Reference and Link:
1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, pp 960.

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Last updated: October 16, 2006.