DragonflyPix

Fivespot Threadtail (Nososticta solitaria)

The Fivespot Threadtail (Nososticta solitaria) 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, 6 of which are pertinent to Nososticta solitaria. 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.
 DisparoneurinaeFivespot Threadtail
(Nososticta solitaria)
  • Disparoneurinae: Key couplet 2 of 23

  • ○ Wing membrane hyaline or yellow
  • b ↑
  • Disparoneurinae: Key couplet 4 of 23

  • ○ Antehumeral stripes ochraceus, with whitish, pale green or blue
  • b ↑
  • Disparoneurinae: Key couplet 6 of 23

  • ○ Abdominal terga 5 and 8 with substantial basal green to yellowish marks, that on segment 8 occupying approximately half the tergum

    ⇒ species: Fivespot Threadtail (Nososticta solitaria)
  • a ↑
  • 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 ↑
  • Disparoneurinae: Key couplet 14 of 23

  • ○ Abdominal tergum 1 dark brown or black above
  • b ↑
  • Disparoneurinae: Key couplet 16 of 23

  • couplet drawing
  • ● Posterior lobe of pronotum deeply concave, edges strongly bowed in profile, apex broad and rounded, appearing semicircular to truncate from above

    ⇒ species: Fivespot Threadtail (Nososticta solitaria)
  • 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 4 of 23

  • ○ Antehumeral stripes bright orange
a ↑
b ↓
  • ○ Antehumeral stripes ochraceus, with whitish, pale green or blue

3 Male only
  • Disparoneurinae: Key couplet 6 of 23

  • ○ Abdominal terga 5 and 8 with substantial basal green to yellowish marks, that on segment 8 occupying approximately half the tergum

    ⇒ species: Fivespot Threadtail (Nososticta solitaria)
a ↑
b ↓
  • ○ Abdominal tergum 5 with at most narrow basal spot or spots occupying 10% or less the length of the tergum, tergum 8 pale only along lateral margin

4 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

5 Female only
  • Disparoneurinae: Key couplet 14 of 23

  • ○ Abdominal tergum 1 pale to dull orange
a ↑
b ↓
  • ○ Abdominal tergum 1 dark brown or black above

6 Female only
  • Disparoneurinae: Key couplet 16 of 23

  • couplet drawing
  • ● Posterior lobe of pronotum deeply concave, edges strongly bowed in profile, apex broad and rounded, appearing semicircular to truncate from above

    ⇒ species: Fivespot Threadtail (Nososticta solitaria)
a ↑
b ↓
  • couplet drawing
  • ● Posterior lobe shallowly concave, subtriangular, almost equilateral from above, edges almost straight in profile

Australian distribution