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 male Colonomyia in Australasia

1 Gonocoxites with 1 longitudinal sclerotized rib along midline of basal portion ( Fig. 1A ); apex of ejaculatory apodeme spade-like ( Fig. 1A ) .......................................................... 2

- Gonocoxites with 2 distant longitudinal sclerotized ribs; apex of ejaculatory apodeme with 2 pairs of slender processes ........... albicaulis COLLESS (SE Australia including Tasmania)

2 Gonostylus with dorsomesal lobe ( Fig. 2 ); parameres apically two-lobed, lateral lobe slender and apically serrate, mesal lobe wide and rounded ( Fig. 2 ) .. tasmanica sp. n. (Tasmania)

- Gonostylus without dorsomesal lobe; parameres tusk-like and apically pointed ............... ...................................................................... rakelae HIPPA &ZASCHHOF (New Guinea)

Figures

Fig. 1: Colonomyia tasmanica sp. n., paratype males. - A: terminalia, ninth tergite and adjacent structures omitted, ventral view; - B: terminalia, lateral view. 1 = gonocoxite, 2 = gonocoxal apodeme, 3 = gonostylus, 4 = ninth tergite, 5 = paramere, 6 = ejaculatory apodeme, 7 = endophallus, 8 = pubescent bulge, 9 = sperm sac, 10 = tenth sternite, 11 = cercus. Length of scale bar = 0.1 mm.

Fig. 2: Colonomyia tasmanica sp. n., paratype male; terminalia, ninth tergite and adjacent structures omitted, dorsal view. 1 = gonocoxite, 2 = gonocoxal apodeme, 3 = gonostylus, 4 = dorsomesal lobe of gonostylus, 5 = paramere, 6 = ejaculatory apodeme, 7 = endophallus, 8 = primary gonopore, 9 = phallotrema, 10 = pubescent bulge, 11 = sperm sac. Length of scale bar = 0.05 mm.