The pigeon horntail Tremex columba may look like a dangerous wasp, but the long "sting" is just an egg-laying appendage. Larvae of this large sawfly feed on decaying wood.

Urbana, Illinois, USA
An Aenictus male.

Kibale Forest, Uganda
Perilampidae is among the most beautiful of the parasitic wasp families.

Kibale Forest, Uganda
Acanthoponera goeldii, dealate queen.

Monte Verde, Minas Gerais, Brazil
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
Mimopria (Diapriidae) wasps are army ant mimics that run in the ants' columns.

Morretes, Paraná, Brazil
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
A velvet ant (Mutillidae) is not an ant but a wingless wasp. Most species are parasites of ground-nesting bees.

Monte Verde, Minas Gerais, Brazil
Mimopria (Diapriidae) wasps are army ant mimics that run in the ants' columns.

Morretes, Paraná, Brazil
Acanthoponera goeldii, dealate queen.

Monte Verde, Minas Gerais, Brazil
Acanthoponera goeldii, dealate queen.

Monte Verde, Minas Gerais, Brazil
Acanthoponera goeldii, dealate queen.

Monte Verde, Minas Gerais, Brazil
See photo in original gallery.
all images and text © Alex Wild 2001-2013