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Pygmy Wisp (Agriocnemis pygmaea)

The Pygmy Wisp (Agriocnemis pygmaea) is a damselfly species of the family Coenagrionidae, which contains 30 species in Australia.

The identification key to the family Coenagrionidae consists of 54 couplets, 6 of which are pertinent to Agriocnemis pygmaea. 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.
 CoenagrionidaePygmy Wisp
(Agriocnemis pygmaea)
  • Coenagrionidae: Key couplet 1 of 54

  • couplet drawing
  • ● Arculus in hindwing situated beyond distal antenodal crossvein by at least the length of subcostal part of antenodal
    ○ Very small damselflies, hindwing shorter than 14 mm

    ⇒ genus: Agriocnemis
  • a ↑
  • Coenagrionidae: Key couplet 3 of 54

  • couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
  • ● Inferior anal appendages almost the same length as, or shorter than, superiors
  • b ↑
  • Coenagrionidae: Key couplet 4 of 54

  • couplet drawingcouplet drawing
  • ● Tips of superior appendages not converging
  • b ↑
  • Coenagrionidae: Key couplet 6 of 54

  • couplet drawing
  • ● Small black spot at upper end of metapleural suture
  • b ↑
  • Coenagrionidae: Key couplet 7 of 54

  • couplet drawing
  • ● Upper surface of superior appendage uniformly curved
    ○ Mature males not heavily pruinose

    ⇒ species: Pygmy Wisp (Agriocnemis pygmaea)
  • b ↑
  • Coenagrionidae: Key couplet 8 of 54

  • couplet drawing
  • ● Posterior lobe of pronotum reduced to low rim

    ⇒ species: Pygmy Wisp (Agriocnemis pygmaea)
  • a ↑
1  
  • Coenagrionidae: Key couplet 1 of 54

  • couplet drawing
  • ● Arculus in hindwing situated beyond distal antenodal crossvein by at least the length of subcostal part of antenodal
    ○ Very small damselflies, hindwing shorter than 14 mm

    ⇒ genus: Agriocnemis
a ↑
b ↓
  • ○ Damselflies without this combination of characters

2 Male only
  • Coenagrionidae: Key couplet 3 of 54

  • couplet drawing
  • ● Inferior anal appendages much longer than superiors

    ⇒ species: Pinhead Wisp (Agriocnemis femina)
a ↑
b ↓
  • couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
  • ● Inferior anal appendages almost the same length as, or shorter than, superiors

3 Male only
  • Coenagrionidae: Key couplet 4 of 54

  • couplet drawingcouplet drawing
  • ● Tips of superior appendages converging
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Tips of superior appendages not converging

4 Male only
  • Coenagrionidae: Key couplet 6 of 54

  • couplet drawing
  • ● Black line present along upper half or more of metapleural suture

    ⇒ species: Pilbara Wisp (Agriocnemis kunjina)
a ↑
b ↓
  • couplet drawing
  • ● Small black spot at upper end of metapleural suture

5 Male only
  • Coenagrionidae: Key couplet 7 of 54

  • couplet drawing
  • ● Upper surface of superior appendage ending in short, stout tooth
    ○ Mature males covered in white pruinescence

    ⇒ species: Silver Wisp (Agriocnemis argentea)
a ↑
b ↓
  • couplet drawing
  • ● Upper surface of superior appendage uniformly curved
    ○ Mature males not heavily pruinose

    ⇒ species: Pygmy Wisp (Agriocnemis pygmaea)

6 Female only
  • Coenagrionidae: Key couplet 8 of 54

  • couplet drawing
  • ● Posterior lobe of pronotum reduced to low rim

    ⇒ species: Pygmy Wisp (Agriocnemis pygmaea)
a ↑
b ↓
  • couplet drawingcouplet drawingcouplet drawing
  • ● Posterior lobe of pronotum well developed

Australian distribution