Two early-stage wasp larvae removed from a fruit fly, Drosophila melanogaster, that had been parasitized by the wasp Leptopilina boulardi.

Dohr, Germany Info from Licensor: "Watching activity at paper wasp nest. I am Lothar Lenz, a nature photographer with heart and soul, and I am lucky enough to live in a small cul-de-sac village in the ...

Fruit flies are generally highly susceptible to parasitic wasps, but some have stolen a gene from bacteria that makes them resistant. This adult fly, Drosophila melanogaster, has two cysts (made ...