DragonflyPix

Giant Rockmaster (Diphlebia hybridoides)

The Giant Rockmaster (Diphlebia hybridoides) is a damselfly species of the family Diphlebiidae, which contains 5 species in Australia.

The identification key to the family Diphlebiidae consists of 9 couplets, 3 of which are pertinent to Diphlebia hybridoides. 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.
 DiphlebiidaeGiant Rockmaster
(Diphlebia hybridoides)
  • Diphlebiidae: Key couplet 2 of 9

  • ○ Terga 4-6 largely blue or grey above, without broad, mid-dorsal black stripe
  • b ↑
  • Diphlebiidae: Key couplet 5 of 9

  • ○ Segment 10 and superior anal appendages black
    ○ Apical half of wings with brownish black bar c. 10 mm wide, pale brown in tenerals, tip clear

    ⇒ species: Giant Rockmaster (Diphlebia hybridoides)
  • a ↑
  • Diphlebiidae: Key couplet 6 of 9

  • couplet drawing
  • ● Abdominal terga 4-7 without black mid-dorsal line, or with line of darkening confined to dorsal ridge
    ● Segments 8-10 entirely black

    ⇒ species: Giant Rockmaster (Diphlebia hybridoides)
  • a ↑
1 Male only
  • Diphlebiidae: Key couplet 2 of 9

  • couplet drawing
    couplet drawing
    couplet drawing
  • ● Terga 4-6 black above, at least in midline
a ↑
b ↓
  • ○ Terga 4-6 largely blue or grey above, without broad, mid-dorsal black stripe

2 Male only
  • Diphlebiidae: Key couplet 5 of 9

  • ○ Segment 10 and superior anal appendages black
    ○ Apical half of wings with brownish black bar c. 10 mm wide, pale brown in tenerals, tip clear

    ⇒ species: Giant Rockmaster (Diphlebia hybridoides)
a ↑
b ↓
  • ○ Segment 10 and superior anal appendages largely blue above
    ○ Wings with or without white cross bar and darkened tip

    ⇒ species: Whitewater Rockmaster (Diphlebia lestoides)

3 Female only
  • Diphlebiidae: Key couplet 6 of 9

  • couplet drawing
  • ● Abdominal terga 4-7 without black mid-dorsal line, or with line of darkening confined to dorsal ridge
    ● Segments 8-10 entirely black

    ⇒ species: Giant Rockmaster (Diphlebia hybridoides)
a ↑
b ↓
  • couplet drawingcouplet drawingcouplet drawing
    couplet drawing
  • ● Abdominal terga 4-7 with or without black mid-dorsal line
    ● Segments 8, 9 black with pale markings

Australian distribution