Diphlebia euphoeoides

Tropical Rockmaster (Diphlebia euphoeoides)

Inhabits streams and rivers, including those that dry to pools

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

• Diphlebiidae: Key couplet 2 of 9

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• ● Terga 4-6 black above, at least in midline

• Diphlebiidae: Key couplet 3 of 9

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• ● Terga 4-6 with or without blue basal spot on each side, no more than quarter length of tergum

• Diphlebiidae: Key couplet 4 of 9

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• ● Basal spots on terga 4-6 usually very small and indistinct, or absent
  ○ North of Paluma-Eungella gap
  
  ⇒ species: Tropical Rockmaster (Diphlebia euphoeoides)

• Diphlebiidae: Key couplet 6 of 9

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• ● Abdominal terga 4-7 with or without black mid-dorsal line
  ● Segments 8, 9 black with pale markings

• Diphlebiidae: Key couplet 7 of 9

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• ● Dark mid-dorsal line on terga 2 and 3 considerably narrower than on terga 4-7, or missing, distal black dorsal patch on segments 4-6 more or less onion-shaped, rounded at sides

• Diphlebiidae: Key couplet 8 of 9

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• ● Mid-dorsal stripe on tergum 3 a very narrow line, or lacking
  ○ North of Paluma-Eungella gap
  
  ⇒ species: Tropical Rockmaster (Diphlebia euphoeoides)