Colonomyia, COLLESS, 1963

Jaschhof, Mathias & Jaschhof, Catrin, 2008, The Ohakunea group in Tasmania, with description of Colonomyia tasmanica sp. n. (Diptera: Sciaroidea), Beiträge Zur Entomologie = Contributions to Entomology 58 (2), pp. 441-453 : 445

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)

Figures

Fig. 4: Anterior portion of female terminalia, dorsal view. - A: Colonomyia tasmanica sp. n. (paratype); - B: Colonomyia albicaulis COLLESS (specimen from Warra). 1 = eighth tergum, 2 = pubescent lobe(s) on posterior margin of eighth tergum, 3 = ninth tergite, 4 = tenth tergite, 5 = proximal cercus segment. Length of scale bar = 0.05 mm.

Fig. 5: Dorsal wall of female genital chamber, ventral view. - A: Colonomyia tasmanica sp. n. (paratype); - B: Colonomyia albicaulis COLLESS (specimen from Warra). 1 = gonapophysis of ninth segment, 2 = notum, 3 = gonocoxite of ninth segment, 4 = tergite of ninth segment, 5 = spermathecal eminence. Length of scale bar = 0.05 mm.

Fig. 3: Colonomyia tasmanica sp. n., paratype females. - A: terminalia, lateral view; - B: terminalia, ventral view. 1 = eighth tergum, with only the distalmost microtrichia indicated, 2 = pubescent lobe on posterior margin of eighth tergum, 3 = gonocoxite of eighth segment, 4 = desclerotized portion of eighth sternum, 5 = gonapophysis of eighth segment, 6 = labia, 7 = ninth tergum, 8 = gonapophysis of ninth segment, 9 = spermathecal eminence,10 = tenth tergite, 11 = tenth sternite, 12 = proximal cercus segment, 13 = distal cercus segment. Length of scale bar = 0.05 mm.