Grey-chested Flatwing (Griseargiolestes eboracus)

Grey-chested Flatwing (Griseargiolestes eboracus)

Inhabits boggy seepages and sphagnum bogs

© 2011 DECCW, NSW; 2021 Ian Endersby and DragonflyPix.com

• Megapodagrionidae: Key couplet 1 of 31

• 
• ○ Smaller, with abdomen shorter than 42 mm, hindwings shorter than 35 mm
  ● Fewer than 27 postnodals

• Megapodagrionidae: Key couplet 2 of 31

• 
• ● Generally two, sometimes three, cells in discoidal field between discoidal cell and level of subnodus
  ● Male superior anal appendage without ventral spur

• Megapodagrionidae: Key couplet 22 of 31

• 
• ● Pale humeral stripe well developed, conspicuous
  ○ From eastern Australia
  
  ⇒ genus: Griseargiolestes

• Megapodagrionidae: Key couplet 23 of 31

• ○ Labium pale

• Megapodagrionidae: Key couplet 24 of 31

• 
• ● Black marking on metepimeron much more extensive, occupying approximately half of width and at least one third of length of epimeron

• Megapodagrionidae: Key couplet 27 of 31

• 
• ● Mesepimeral portion of humeral stripe narrow, scarcely wider than the adjacent part of episternal portion
  ● Pale marks on sides of median and posterior lobes of pronotum widely separated

• Megapodagrionidae: Key couplet 28 of 31

• 
• ● Yellow patch along the intersegmental suture triangular and the dorsal two-thirds of the adjacent black bar almost parallel-sided
  ● Pterostigma generally markedly paler with the posterior side approximately twice as long as the distal or proximal side
  ○ Pruinescence restricted to the front of the thorax
  
  ⇒ species: Grey-Chested Flatwing (Griseargiolestes eboracus)