Austrocnephia aurantiaca (Tonnoir, 1925) Craig & Currie & Gil-Azevedo & Moulton, 2019

Craig, Douglas A., Currie, Douglas C., Gil-Azevedo, Leonardo H. & Moulton, John K., 2019, Austrocnephia, new genus, for five species of ‘ Paracnephia’ (Diptera: Simuliidae), with a key to Australian black fly genera, Zootaxa 4627 (1), pp. 1-92 : 7

aurantiaca species-group

Diagnosis. Adults: larger, lighter-colored species, female total body length 2.8–5.5 mm; vein Rs slightly thickened distally, or with evidence of branching; junction of r-m cross vein and R 1 with faintly expressed dark spot or, if spot not evident, then with r-m cross vein darker than adjacent veins; pedisulcus absent, represented at most by a slight wrinkling of cuticle on dorsal base of hind tarsomere II; tarsal claw basal tooth a third or less length of main talon, claw heel moderately expressed; genital fork with anterior stem of normal width, not markedly bent; male gonostylus angulate, with two or three apical spines; ventral plate with apex markedly narrowed in ventral view, apex directed ventrally, producing concave appearance; parameres well sclerotized and distinct. Pupa: gill with numerous (38–50) filaments; abdominal tuberculation absent; pleurites absent from segments VI & VII. Larva: mandible apex with spinous teeth markedly expressed; hypostomal teeth 5–7, poorly expressed; lateral hypostomal serrations absent; posterior tentorial pits rectangular; prothoracic proleg lateral sclerite L-shaped, lappets not commonly present; anal sclerite with posterolateral arms variously present; area between posterolateral arms and circlet of hooks with large number of campaniform sensilla; posterior proleg with large number (10,000 –17,000) of hooks; larvae occur in flows of high velocity.