Podomyrma

These common ants nest in solid dead wood, often in pre-existing beetle burrows or cracks in trunks, in twigs, vines and mangrove, in large seeds and galls, or in the ground. Foraging is most common on tree trunks or around the base of trees and in the surrounding litter, as well as on grasses, especially in evenings. Most workers forage individually and trails are uncommon. Some species are primarily nocturnal and are rarely collected except at baits, while others will forage day and night. Although they can be common, they are often overlooked or are difficult to find because of their arboreal habits.

Identification
The antennae are 11 segmented (including the scape). In side view, the petiole and postpetiole are either low and rounded or barrel-shaped, or the petiole is armed above with 1 to 3 small spines or teeth. The middle and hind legs with greatly swollen femora (and often tibiae as well).

The modified petiole (low and rounded or armed with teeth above) and the swollen femora will separate these ants from others in the subfamily Myrmicinae.

Regional Species List
Australian Species

Nomenclature

 *  PODOMYRMA [Myrmicinae: Formicoxenini]
 * Podomyrma Smith, F. 1859a: 145. Type-species: Podomyrma femorata, by subsequent designation of Wheeler, W.M. 1911f: 170.
 * Podomyrma senior synonym of †Acrostigma: Dalla Torre, 1893: 59.
 * Podomyrma senior synonym of Dacryon, Pseudopodomyrma: Taylor & Brown, D.R. 1985: 80.
 * †ACROSTIGMA [junior synonym of Podomyrma]
 * †Acrostigma Emery, 1891a: 149 [as subgenus of Podomyrma]. Type-species: †Podomyrma (Acrostigma) mayri, by monotypy.
 * †Acrostigma junior synonym of Podomyrma: Dalla Torre, 1893: 159.
 * DACRYON [junior synonym of Podomyrma]
 * Dacryon Forel, 1895f: 421. Type-species: Dacryon omniparens, by monotypy.
 * Dacryon junior synonym of Podomyrma: Taylor & Brown, D.R. 1985: 80.
 * PSEUDOPODOMYRMA [junior synonym of Podomyrma]
 * Pseudopodomyrma Crawley, 1925: 40. Type-species: Pseudopodomyrma clarki, by monotypy.
 * Pseudopodomyrma junior synonym of Podomyrma: Taylor & Brown, D.R. 1985: 80.

Additional References

 * Davidson, D. W., McKey, D. (1993). The evolutionary ecology of symbiotic ant-plant relationships . Journal of Hymenoptera Research. 2 : 13–83 [relation to plants]
 * Fiedler, K. (2001). Ants that associate with Lycaeninae butterfly larvae: diversity, ecology and biogeography . Diversity and Distributions. 7 : 45–60 [association with Lepidoptera]