Discothyrea Roger

Discothyrea Roger, 1863: 176 .

Type species: Discothyrea testacea Roger, 1863, by monotypy. Pseudosysphincta Arnold, 1916: 161 .

Type species: Pseudosysphincta poweri Arnold, 1916 [synonymised by Brown 1958]. Prodiscothyrea Wheeler, 1916: 33 .

Type species: Prodiscothyrea velutina Wheeler, 1916 [synonymised by Brown 1958]. Pseudosphincta Wheeler, 1922: 645, 762 [variant spelling of Pseudosysphincta].

General diagnosis. Small stocky ants, notable for the exaggerated enlargement of the apical antennal segment. The antennae are 6–12 segmented. Mandibles edentate and overhung by a projecting clypeus. Alitrunk is short and sutureless dorsally (Brown 1958; Bolton 1994).