Austrocnephia, new genus, for five species of ‘ Paracnephia’ (Diptera: Simuliidae), with a key to Australian black fly genera Author Craig, Douglas A. Author Currie, Douglas C. Author Gil-Azevedo, Leonardo H. Author Moulton, John K. text Zootaxa 2019 2019-07-03 4627 1 1 92 journal article 26211 10.11646/zootaxa.4627.1.1 4913742a-fd61-412c-a4f5-5a38004e713e 1175-5326 3335569 A7802D6F-D366-44DE-82D9-F0AAC7468157 tonnoiri species-group Diagnosis Adults : smaller darker species, female total body length 2.2–2.9 mm ; Rs neither thickened nor branched distally; junction of r-m cross vein and R 1 with markedly expressed dark spot; pedisulcus more strongly developed as deeper furrowing of cuticle on dorsal base of hind tarsomere II; tarsal claw basal tooth a third or more length of main talon, claw heel slightly expressed; genital fork with anterior stem markedly broadened and bent; male gonostylus cone-shaped, with two apical spines; ventral plate apex broadly rounded, not markedly directed ventrally; parameres smaller. Pupa : gill with fewer (21–50) filaments; abdominal tuberculation slightly to markedly expressed; pleurites present on segments VI & VII. Larva : four to five hypostomal setae; lateral hypostomal serrations present; posterior tentorial pits small and rounded; prothoracic proleg lateral sclerite V-shaped; anal sclerite with posteroventral arms only; area between posterolateral arms and circlet of hooks with small number of campaniform sensilla; posterior proleg with markedly fewer ( 1,800 –3,000 ) hooks; larvae occur in flows of various velocity.