Anisocentropus (Anisocentropus) latifascia, new diagnostic species-group This diagnostic species-group, characterized by having males with short gonocoxites and simple preanal appendages includes the only representatives of the genus having a wide Gondwanan distribution, including the Afrotropical and Australasian Regions as far north as the Philippines (Oriental Region). Only a few species are present in the Oriental region. Species in the other diagnostic species-groups have variously modified inferior and preanal appendages and are diverse in and endemic to the Oriental Region and have highly modified forms present in the East Palaearctic Region. The members of the A. latifascia diagnostic species-group are all medium-sized species with a forewing length between 7 and 14 mm. The cephalic groove and setal wart pattern are rather stable, not varying among species. The forewing shape varies among the species, but many have broad triangular forewings. Most species are coloured, and with more or less pronounced forewing patterns (Figs 138–159). Two genital characters seem discriminatory for this diagnostic species-group: (1) male genitalia with lateral flank on each side between preanal appendage and gonocoxite on the posterior margin of segment IX (in addition to the apicodorsal lobe). Its apical half is more glabrous and shiny compared to the rest of segment IX, apparently without microtrichia or acanthae (Oláh & Johanson 2007); (2) short gonocoxites. Two additional genital characters appear stable in this diagnostic species-group: (1) segment X forming a large hood with ventrad-oriented apical margin being variously excised apicomesally and with apicolateral margin with various configurations; (2) preanal appendages simple, short and ovoid. Neboiss (1980) distinguished 3 diagnostic species-groups among the Australian Anisocentropus based on the size and shape of the phallotremal sclerites.

Published as part of Oláh, János & Johanson, Kjell Arne, 2010, Description of 33 new species of Calamoceratidae, Molannidae, Odontoceridae and Philorheithridae (Trichoptera), with detailed presentation of their cephalic setal warts and grooves 2457, pp. 1-128 in Zootaxa 2457 (1) on page 18, DOI: 10.11646/zootaxa.2457.1.1, http://zenodo.org/record/5313709