Home     
 

Print This Page

 Major Groups | Insecta (insects) | Odonata (dragonflies, damselflies) | Oxygastridae
 

Oxygastridae
Hesperocordulia berthoudi

Major Group: Insecta
Order: Odonata
Family: Oxygastridae (formerly part of Corduliidae)
Genus: Hesperocordulia
Species: berthoudi
This family is represented in Australia by a single species, Hesperocordulia berthoudi Tillyard.

Descriptive Features:

  • head hairy, short, very wide, subpentagonal
  • eyes strongly protruding laterally
  • antennae 7-segmented, scape and pedicel strongly developed and very hairy, segment 6 slightly hairy, segments 3-5 and 7 markedly shorter
  • prementum long, narrow at base, very wide at distal end; ligula slightly convex to bilobed; 1 group of generally 8 larger and another of 3-5 smaller premental setae
  • labial palp generally with 8 rounded teeth, set with bristles
  • end hook strong, straight but rather small
  • 6 large palpal setae
  • frontal plate slightly produced medially
  • prothorax hairy, with rounded notal lobe and rounded processes
  • synthorax also hairy, slightly narrower than head, with fringe of hairs along lateral margins of nota
  • legs very long, giving an almost spidery appearance
  • abdomen very flat, wider than head, widening from segment 1-4, almost parallel-sided from segment 5-7, tapered in segments 8 and 9, small, sharp and slightly inward curved lateral spines on tergites 7, 8 and 9
  • posterior margin of tergite 9 highly concave
  • segment 10 directed clearly dorsally
  • Total length: 24.0 - 26.0 mm 
  •  

    Hesperocordulia berthoudi

    Taxonomic Checklist:
    Hesperocordulia berthoudi Tillyard

    Distribution: S WA

    Sensitivity Rating: none

    Functional Feeding Group: predators

    Ecology: Adults are commonly known as 'streamcruisers'.
    Instream habitat: Hesperocordulia berthoudi inhabits stream, rivers and riverine pools.
    Feeding ecology: Larvae are predators
    Habit:
    Life history:

     

    Information Sources: Theischinger & Watson 1984, Houston 1988, Theischinger 2007, Theischinger & Hawking 2006

     

     

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