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Spot-Winged Threadtail (Nososticta kalumburu)

The Spot-Winged Threadtail (Nososticta kalumburu) is a damselfly species of the family Disparoneurinae, which contains 12 species in Australia.

The identification key to the family Disparoneurinae consists of 23 couplets, 5 of which are pertinent to Nososticta kalumburu. 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.
 DisparoneurinaeSpot-Winged Threadtail
(Nososticta kalumburu)
  • Disparoneurinae: Key couplet 2 of 23

  • ○ Central portion of the wings with brown to black markings
  • a ↑
  • Disparoneurinae: Key couplet 3 of 23

  • ○ Wings with well-defined brownish-black transverse band between levels of about 3rd-4th and 7th-9th postnodal veins

    ⇒ species: Spot-Winged Threadtail (Nososticta kalumburu)
  • a ↑
  • Disparoneurinae: Key couplet 13 of 23

  • couplet drawingcouplet drawing
    couplet drawing
    couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum not scoop-shaped
    ● Apex, if defined, protuberant from lateral contour of lobe
  • b ↑
  • Disparoneurinae: Key couplet 18 of 23

  • couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum without well-defined apex
  • b ↑
  • Disparoneurinae: Key couplet 22 of 23

  • couplet drawing
  • ● Posterior lobe of pronotum a large, upright flap, almost flat, the upper margin variably emarginate in midline

    ⇒ species: Spot-Winged Threadtail (Nososticta kalumburu)
  • a ↑
1 Male only
  • Disparoneurinae: Key couplet 2 of 23

  • ○ Central portion of the wings with brown to black markings
a ↑
b ↓
  • ○ Wing membrane hyaline or yellow

2 Male only
  • Disparoneurinae: Key couplet 3 of 23

  • ○ Wings with well-defined brownish-black transverse band between levels of about 3rd-4th and 7th-9th postnodal veins

    ⇒ species: Spot-Winged Threadtail (Nososticta kalumburu)
a ↑
b ↓
  • ○ Wings with broader, more diffuse brown patch, from about level of nodus almost to pterostigma

    ⇒ species: Black-Winged Threadtail (Nososticta baroalba)

3 Female only
  • Disparoneurinae: Key couplet 13 of 23

  • couplet drawing
    couplet drawingcouplet drawing
    couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum reflexed, scoop-shaped, strongly concave above, uniformly rounded to subtriangular with rounded apex
a ↑
b ↓
  • couplet drawingcouplet drawing
    couplet drawing
    couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum not scoop-shaped
    ● Apex, if defined, protuberant from lateral contour of lobe

4 Female only
  • Disparoneurinae: Key couplet 18 of 23

  • couplet drawingcouplet drawingcouplet drawing
  • ● Posterior lobe of pronotum with well-defined apex, bearing blunt to finger-like or subtriangular projection
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum without well-defined apex

5 Female only
  • Disparoneurinae: Key couplet 22 of 23

  • couplet drawing
  • ● Posterior lobe of pronotum a large, upright flap, almost flat, the upper margin variably emarginate in midline

    ⇒ species: Spot-Winged Threadtail (Nososticta kalumburu)
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Posterior lobe of pronotum low, comprising two small, widely separated peaks

Australian distribution