Print This Page

 Major Groups | Insecta (insects) | Plecoptera (stoneflies) | Austroperlidae


Major Group: Insecta
Order: Plecoptera  
Family: Austroperlidae

Descriptive Features:

  • ocelli absent
  • caudal filaments very short
  • antennae long, about as long as thorax plus head 
  • pronotum rectangular, corners often extended to sharp points
  • abdomen cylindrical, dark brown
  • 3 or 5 beaded anal gills
  • anal gills may be partially or fully contracted so that only the tips are visible or none are visible, respectively,
  • gills of Acruroperla atra not usually visible AND dorsal tubercules present on abdominal terga
  • Total length: 1030 mm

    Tasmanoperla thalia

    Taxonomic Checklist: Genera
    Acruroperla atra Amal

    Crypturoperla paradoxa Illies

    Distribution: E Vic, E NSW, E Qld, Tas. All Australian genera are endemic.

    Sensitivity Rating: SIGNAL grade 10

    Functional Feeding Group: scrapers


    Watchbed Creek, Rocky Valley Vic

    Ecology: Instream habitat: Austroperlid nymphs generally occur in slow flowing waters. They are found on logs, rocks, under stones or in gravel with leaf packs.
    Feeding ecology: Nymphs are slow moving herbivores and detritivores feeding on rotten wood, detritus, moss or algae.
    Habit: Typically Austroperlidae species burrow into old logs, leaving only the end of the abdomen exposed. Crypturoperla paradoxa is an exception, it is restricted to rocks.
    Life history: Eggs are white with a sticky coating to adhere to the substrata. The full life cycle takes two to three years. Emergence may not be synchronised and can extend over many months.


    Information Sources: Hynes 1989, Theischinger 1991, Yule 1997, Hawking & Smith 1997, Michaelis & Yule 1997
    Key to Genera: Hynes 1989 (Tas, incomplete), Hynes 1978 (Vic, incomplete), Yule 1997 (NSW, NVic)
    Key to Species: Hynes 1989 (Tas, incomplete), Hynes 1978 (Vic, incomplete), Yule 1997 (NSW, NVic)



    Use of this web site and information available from it is subject to our Legal Notice and Disclaimer and Privacy Statement.