Colonomyia COLLESS 1963

Key to female Colonomyia in Australasia

1 Tergite and gonapophyses of segment 9 strongly sclerotized, forming expansive, complex interior apparatus (Figs 4B, 5B); tergite 8 on posterior margin with 2 wide pubescent lobes (Fig. 4B)...................................... albicaulis COLLESS (SE Australia including Tasmania)

- Tergite and gonapophyses of segment 9 more weakly sclerotized (Figs 3A, 4A, 5A); tergum 8 posterior of its setose portion with large bare portion (Fig. 4A)................................. 2

2 Tergum 8 on posterior margin with pubescent lobe mesally (Fig. 4A)......................................................................................................................... tasmanica sp. n. (Tasmania)

- Tergum 8 without lobe on posterior margin... rakelae HIPPA & JASCHHOF (New Guinea)