The desert sun sets over a nest of Pogonomyrmex barbatus harvester ants. Sycamore Canyon, Arizona, USA
Polyrhachis (Cyrtomyrma) sp. This weaver ant colony has made a nest by folding a leaf and sealing the open ends with silk and debris. Cape York Peninsula, Queensland, Australia
Although the most famous weaver ants are in the genus Oecophylla, many weaving species also occur in Polyrhachis. Here, a Polyrhachis (Cyrtomyrma) robsoni worker sits atop a nest fashioned from a rolled leaf. The leaf is bound by silk spun from the ants' larvae. Cape Tribulation, Queensland, Australia
