DragonflyPix

Stream Flatwing (Miniargiolestes minimus)

The Stream Flatwing (Miniargiolestes minimus) is a damselfly species of the family Megapodagrionidae, which contains 22 species in Australia.

The identification key to the family Megapodagrionidae consists of 31 couplets, 4 of which are pertinent to Miniargiolestes minimus. 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.
 MegapodagrionidaeStream Flatwing
(Miniargiolestes minimus)
  • Megapodagrionidae: Key couplet 1 of 31

  • couplet drawing
  • ○ Smaller, with abdomen shorter than 42 mm, hindwings shorter than 35 mm
    ● Fewer than 27 postnodals
  • b ↑
  • Megapodagrionidae: Key couplet 2 of 31

  • couplet drawingcouplet drawing
  • ● Generally two, sometimes three, cells in discoidal field between discoidal cell and level of subnodus
    ● Male superior anal appendage without ventral spur
  • b ↑
  • Megapodagrionidae: Key couplet 22 of 31

  • couplet drawingcouplet drawing
  • ● Pale humeral stripe vestigial or absent
    ○ From south-western Australia
  • b ↑
  • Megapodagrionidae: Key couplet 29 of 31

  • couplet drawingcouplet drawing
  • ● Line of junction between anterior dark metallic region of synthorax and pale region behind it almost straight, passing diagonally from mesocoxa to base of hindwing
    ● Male superior anal appendages with low, ventral subterminal flange

    ⇒ species: Stream Flatwing (Miniargiolestes minimus)
  • a ↑
1  
  • Megapodagrionidae: Key couplet 1 of 31

  • couplet drawing
  • ○ Large, with abdomen longer than 42 mm
    ○ hindwings longer than 40 mm
    ● More than 27 postnodals

    ⇒ species: Treehole Flatwing (Podopteryx selysi)
a ↑
b ↓
  • couplet drawing
  • ○ Smaller, with abdomen shorter than 42 mm, hindwings shorter than 35 mm
    ● Fewer than 27 postnodals

2  
  • Megapodagrionidae: Key couplet 2 of 31

  • couplet drawingcouplet drawing
  • ● Generally three or more cells, rarely two in discoidal field between discoidal cell and level of subnodus
    ● Male superior anal appendages with ventral spur

    ⇒ genus: Austroargiolestes
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Generally two, sometimes three, cells in discoidal field between discoidal cell and level of subnodus
    ● Male superior anal appendage without ventral spur

3  
  • Megapodagrionidae: Key couplet 22 of 31

  • couplet drawing
  • ● Pale humeral stripe well developed, conspicuous
    ○ From eastern Australia

    ⇒ genus: Griseargiolestes
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Pale humeral stripe vestigial or absent
    ○ From south-western Australia

4  
  • Megapodagrionidae: Key couplet 29 of 31

  • couplet drawingcouplet drawing
  • ● Line of junction between anterior dark metallic region of synthorax and pale region behind it almost straight, passing diagonally from mesocoxa to base of hindwing
    ● Male superior anal appendages with low, ventral subterminal flange

    ⇒ species: Stream Flatwing (Miniargiolestes minimus)
a ↑
b ↓
  • couplet drawingcouplet drawingcouplet drawing
  • ● Line of junction between dark and pale areas of synthorax irregular, with black stripe extending down in front of metapleural suture
    ● Male superior anal appendages with mesal tooth

    ⇒ genus: Archiargiolestes

Australian distribution