DragonflyPix

Eastern Pondsitter (Austrosticta frater)

The Eastern Pondsitter (Austrosticta frater) is a damselfly species of the family Isostictidae, which contains 15 species in Australia.

The identification key to the family Isostictidae consists of 22 couplets, 4 of which are pertinent to Austrosticta frater. Click on the numbers on the right to display the corresponding couplets. Or click on the ALLin1 button to see all the relevant couplets together in a single, scrollable window.

#FamilySpeciesCouplet No.
 IsostictidaeEastern Pondsitter
(Austrosticta frater)
  • Isostictidae: Key couplet 1 of 22

  • couplet drawing
  • ● CuP three or more cells long
  • b ↑
  • Isostictidae: Key couplet 14 of 22

  • couplet drawing
  • ● Ac in hindwing distal to, or aligned with, Ax1
  • b ↑
  • Isostictidae: Key couplet 15 of 22

  • couplet drawing
  • ● Superior anal appendages of male shorter than inferiors
    ○ Anal appendages of female pale

    ⇒ genus: Austrosticta
  • b ↑
  • Isostictidae: Key couplet 21 of 22

  • couplet drawing
  • ● Synthorax with large black frontal patch and black lateral stripe continuous, or almost so, across base of mesopleural suture

    ⇒ species: Eastern Pondsitter (Austrosticta frater)
  • a ↑
1  
  • Isostictidae: Key couplet 1 of 22

  • couplet drawingcouplet drawing
  • ● CuP one or two cells long, occasionally none
a ↑
b ↓
  • couplet drawing
  • ● CuP three or more cells long

2  
  • Isostictidae: Key couplet 14 of 22

  • couplet drawing
  • ● Ac in hindwing proximal to Ax1

    ⇒ species: Rock Narrow-Wing (Lithosticta macra)
a ↑
b ↓
  • couplet drawing
  • ● Ac in hindwing distal to, or aligned with, Ax1

3  
  • Isostictidae: Key couplet 15 of 22

  • couplet drawing
  • ● Superior anal appendages of male much longer than inferiors
    ○ Anal appendages of female black

    ⇒ genus: Neosticta
a ↑
b ↓
  • couplet drawing
  • ● Superior anal appendages of male shorter than inferiors
    ○ Anal appendages of female pale

    ⇒ genus: Austrosticta

4  
  • Isostictidae: Key couplet 21 of 22

  • couplet drawing
  • ● Synthorax with large black frontal patch and black lateral stripe continuous, or almost so, across base of mesopleural suture

    ⇒ species: Eastern Pondsitter (Austrosticta frater)
a ↑
b ↓
  • couplet drawing
  • ● Synthorax with large black frontal patch and black lateral stripe not continuous across base of mesopleural suture

Australian distribution