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Pigeon horntail Tremex columba (Siricidae). Urbana, Illinois, USA
An Orasema ant-parasite wasp (Eucharitidae) lays an egg in a Heliconius leaf. The young hatchling will attempt to hitchhike on a passing ant into the nest, where it will prey on developing larvae. Ibagué, Tolima, Colombia
An Orasema ant-parasite wasp (Eucharitidae) lays an egg in a Heliconius leaf. The young hatchling will attempt to hitchhike on a passing ant into the nest, where it will prey on developing larvae. Ibagué, Tolima, Colombia
Lytopylus (Braconidae: Agathidinae) wasp ovipositing into a sunflower. These insects are parasites of seed-feeding moths. Lake Forest, Illinois, USA
Pigeon horntail Tremex columba (Siricidae).

Urbana, Illinois, USA
Pigeon horntail Tremex columba (Siricidae). Urbana, Illinois, USA
Pigeon horntail Tremex columba (Siricidae).

Urbana, Illinois, USA
See photo in original gallery.
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all images and text © Alex Wild 2001-2013