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

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Adults are mainly found near swamps or forest margins. Larvae of most species are predators or parasitoids of freshwater or terrestrial snails. Free-living larvae and floating pupae of Dichetophora are common in ponds and dams. Larvae of Dichetophora and Sepedon are important predators of snails that may carry liver-fluke. Pelidnoptera nigripennis (Fabricius) has been introduced to South Australia from Portugal for the control of Ommatoiulus moreleti (Lucas), a pest millipede, in which its larvae are parasitoids.


The Sciomyzidae are distinguished from related families by having the prelabrum ('clypeus' in error) reduced and well removed from the lower margin of the face. Pelidnoptera is sometimes placed in a separate family, the Phaeomyiidae (Vala et al. 1990). Sepedon is peculiar among the Schizophora in lacking a ptilinal fissure.


This is a moderately species-rich family worldwide, but with little representation (only eight species) in Australia and New Zealand. Our characterisation of Sciomyzidae excludes taxa of Huttoninidae, found only in New Zealand.

  • Sciomyzidae

  • Neolimnia sp.