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Powdered Wiretail (Rhadinosticta simplex)

The Powdered Wiretail (Rhadinosticta simplex) is a damselfly species of the family Isostictidae, which contains 15 species in Australia.

The identification key to the family Isostictidae consists of 22 couplets, 7 of which are pertinent to Rhadinosticta simplex. 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.
 IsostictidaePowdered Wiretail
(Rhadinosticta simplex)
  • Isostictidae: Key couplet 1 of 22

  • couplet drawingcouplet drawing
  • ● CuP one or two cells long, occasionally none
  • a ↑
  • Isostictidae: Key couplet 3 of 22

  • couplet drawing
  • ● Superior anal appendages shorter than inferiors

    ⇒ genus: Rhadinosticta
  • a ↑
  • Isostictidae: Key couplet 4 of 22

  • couplet drawingcouplet drawing
  • ● Distal part of male inferior appendage far more slender than superior appendage
    ● Lateral horns on posterior lobe of pronotum short, their length (without hairs) less than a quarter the basal width of posterior lobe

    ⇒ species: Powdered Wiretail (Rhadinosticta simplex)
  • a ↑
  • Isostictidae: Key couplet 10 of 22

  • couplet drawing
  • ● Ac in hindwing proximal to level of Ax1
  • b ↑
  • Isostictidae: Key couplet 11 of 22

  • ○ CuP one cell long in forewing and hindwing
  • b ↑
  • Isostictidae: Key couplet 12 of 22

  • couplet drawing
  • ● Labrum creamy white, with or without darker markings occupying up to basal half

    ⇒ genus: Rhadinosticta
  • b ↑
  • Isostictidae: Key couplet 13 of 22

  • couplet drawing
    couplet drawingcouplet drawing
  • ● Female lacking prothoracic horns
    ● Hind margin of proepimeron with two short, blunt, upwardly-directed spines

    ⇒ species: Powdered Wiretail (Rhadinosticta simplex)
  • a ↑
1  
  • Isostictidae: Key couplet 1 of 22

  • couplet drawingcouplet drawing
  • ● CuP one or two cells long, occasionally none
a ↑
b ↓
  • couplet drawing
  • ● CuP three or more cells long

2 Male only
  • Isostictidae: Key couplet 3 of 22

  • couplet drawing
  • ● Superior anal appendages shorter than inferiors

    ⇒ genus: Rhadinosticta
a ↑
b ↓
  • couplet drawing
  • ● Superior anal appendages longer than inferiors

3 Male only
  • Isostictidae: Key couplet 4 of 22

  • couplet drawingcouplet drawing
  • ● Distal part of male inferior appendage far more slender than superior appendage
    ● Lateral horns on posterior lobe of pronotum short, their length (without hairs) less than a quarter the basal width of posterior lobe

    ⇒ species: Powdered Wiretail (Rhadinosticta simplex)
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ● Distal part of male inferior appendage almost as substantial as superior appendage
    ● Prothoracic horns elongate, length more than a quarter the basal width of posterior lobe

    ⇒ species: Northern Wiretail (Rhadinosticta banksi)

4 Female only
  • Isostictidae: Key couplet 10 of 22

  • couplet drawing
  • ● Ac in hindwing at or distal to level of Ax1

    ⇒ species: Slender Wiretail (Oristicta filicicola)
a ↑
b ↓
  • couplet drawing
  • ● Ac in hindwing proximal to level of Ax1

5  
  • Isostictidae: Key couplet 11 of 22

  • couplet drawing
  • ● CuP one cell long in forewing, two cells long in hindwing

    ⇒ genus: Eurysticta
a ↑
b ↓
  • ○ CuP one cell long in forewing and hindwing

6 Female only
  • Isostictidae: Key couplet 12 of 22

  • couplet drawing
  • ● Labrum black with pale front margin

    ⇒ species: Large Wiretail (Labidiosticta vallisi)
a ↑
b ↓
  • couplet drawing
  • ● Labrum creamy white, with or without darker markings occupying up to basal half

    ⇒ genus: Rhadinosticta

7 Female only
  • Isostictidae: Key couplet 13 of 22

  • couplet drawing
    couplet drawingcouplet drawing
  • ● Female lacking prothoracic horns
    ● Hind margin of proepimeron with two short, blunt, upwardly-directed spines

    ⇒ species: Powdered Wiretail (Rhadinosticta simplex)
a ↑
b ↓
  • couplet drawingcouplet drawing
  • ○ Female with or without prothoracic horns
    ● Hind corner of proepimeron bearing low swelling

    ⇒ species: Northern Wiretail (Rhadinosticta banksi)

Australian distribution