Ecuador - Paul Bertner
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Phorid fly (Apocephalus colombicus) parasitizing leafcutter ant (Atta colombiana)

Phorid fly (Apocephalus colombicus) parasitizing leafcutter ant (Atta colombiana)

Normally there is a smaller caste of worker ant atop the leaf which helps protect against parasitization by phorid flies. In this case the worker is absent, thus enabling the phorid fly to parasitize its host. Photographed in Mindo, Ecuador. Paul Bertner 2011.

Mindocloud forestecuadorparasitismleaf cutterparasitoid