Colobostruma biconcava Shattuck, 2000: 35 (w.) AUSTRALIA (Australian Capital Territory). Australasia.

Primary type information: Primary type material: holotype worker. Primary type locality: Australia: Australian Capital Territory, W face of Black Mt., 22.vii.1970, dry sclerophyll, ANIC Berlesate No. 292 (I.C. Taplin). Primary type depository: ANIC. Secondary type information: Secondary type material: 1 paratype worker. Secondary type locality: same as for holotype. Secondary type depository: ANIC.