What Bug Is That? The guide to Australian insect families.

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The family, although represented in all faunal regions, is more common in the Subtropics; it is known from 6 genera and about 100 species, of which only one genus with 10 species is recorded from Australia.


Adults are medium-sized with wing span 15-26 mm, fore wings rather broad, somewhat triangular, densely covered with short, sometimes distinctly coloured hairs. Ocelli absent. Maxillary palps 6-segmented in both sexes (Australian species), long and densely covered with long erect hairs, apical segment simple. Antennae filiform, longer than fore wing, basal segment shorter than head, subsequent segments slender. Mesoscutum with setal warts replaced by 2 more or less distinct, irregular bands of setiferous punctures, mesal separation of bands often indistinct; scutellum small, squarish, without setal warts. Fore wings broadly triangular, discoidal and median cells both present; venation usually similar in sexes with elongate, hyaline line between discoidal and median cells. Tibial spurs 2:4:3 ( Anisocentropus ).
Larval head with labrum bearing transverse band of approximately 16 setae. Pronotal sclerites with prominent anterolateral projections; mesonotal sclerite large, subdivided by median ecdysial line, anterolateral sclerites small; metanotum with 3 pairs of small sclerites. Abdominal segment 1 with dorsal and lateral spacing humps; abdominal gills either single or branched; lateral fringe present; segment 8 with row of bifid spicules. Each larva constructs a dorsoventrally flattened tube-case from pieces of leaves, the upper and wider leaf completely obscuring the ventral part of the case as well as the apical opening. Larvae inhabit sluggish parts of rivers, lakes and swamps and feed on plant detritus.

  • Anisocentropus sp. larvae in case

  • Anisocentropus sp.