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

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The Australian species are small (fore wing 9-14 mm) and dark brown to grey. Austrosialis and Stenosialis differ in wing venation and female genitalia. One species of Austrosialis is known only from Tasmania, the other from north-eastern Queensland. One species of Stenosialis ranges throughout the more coastal ranges of eastern Australia from Cape York to southern Victoria, whereas the second species has been found in only a few localities in north-eastern Queensland (Theischinger 1983).

Ocelli are absent in adults.

  • Stenosialis sp., larvae