A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
Can you spot the parasite? This thief ant colony (Solenopsis molesta) hosts a small parasitic wasp (Diapriidae: Bruesopria).

Konza Prairie, Kansas, USA
A parasitic wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta.

Konza Prairie, Kansas, USA
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta.

Konza Prairie, Kansas, USA
Larvae of syrphid flies in the genus Microdon are so odd that they were originally described as molluscs.  The adults are more or less normal-looking flies, but larvae are predators of ant brood, living within the dark galleries of ant nests (in this case, with Linepithema oblongum).

Termas de Reyes, Jujuy, Argentina
Trachymyrmex arizonensis & Pyramica arizonica.  The minute Pyramica arizonica (at center) is found only inside nests of another ant species, the fungus-growing ant Trachymyrmex arizonensis. 

Sycamore Canyon, Arizona, USA
Stigmacros worker ants with an Anthrenocerus dermestid beetle larva.  The beetle is likely a commensal inhabitant of the ant's nest, taking advantage of the ants' climate-controlled colony while feeding on debris around the nest.

Yandoit, Victoria, Australia
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
A small inquiline wasp (Diapriidae: Bruesopria) in a nest of its host species, the thief ant Solenopsis molesta. Young wasps likely feed on the developing ant larvae.

Konza Prairie, Kansas, USA
See photo in original gallery.
all images and text © Alex Wild 2001-2013