Southern Evening Darner (Telephlebia brevicauda)

The Southern Evening Darner (Telephlebia brevicauda) is a dragonfly species of the family Telephlebiidae and Brachytronidae, which contains 37 species in Australia.

The identification key to the family Telephlebiidae and Brachytronidae consists of 37 couplets, 5 of which are pertinent to Telephlebia brevicauda. 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.

#	Family	Species	Couplet No.
	Telephlebiidae and Brachytronidae	Southern Evening Darner (Telephlebia brevicauda)	Telephlebiidae: Key couplet 1 of 37 ● Crossveins present in median space a ↑ Telephlebiidae: Key couplet 2 of 37 ● Subcosta prolonged into first to third cell distal to nodus b ↑ Telephlebiidae: Key couplet 3 of 37 ● Top of frons pointed in front ● Pterostigma overlying at least five cells ⇒ genus: Telephlebia a ↑ Telephlebiidae: Key couplet 4 of 37 ● Top of frons with wide, subtriangular dark mark, almost extending to outer edge a ↑ Telephlebiidae: Key couplet 5 of 37 ● Male with tips of superior anal appendages rounded, or pointed on inner side, not convergent ● Female with comparatively narrow occiput ⇒ species: Southern Evening Darner (Telephlebia brevicauda) a ↑
1			Telephlebiidae: Key couplet 1 of 37 ● Crossveins present in median space a ↑ b ↓ ● No crossveins in median space
2			Telephlebiidae: Key couplet 2 of 37 ● Subcosta ending at nodus ⇒ species: Wide-Faced Darner (Dendroaeschna conspersa) a ↑ b ↓ ● Subcosta prolonged into first to third cell distal to nodus
3			Telephlebiidae: Key couplet 3 of 37 ● Top of frons pointed in front ● Pterostigma overlying at least five cells ⇒ genus: Telephlebia a ↑ b ↓ ● Top of frons rounded in front ● Pterostigma overlying no more than three cells ⇒ species: Terrestrial Evening Darner (Antipodophlebia asthenes)
4			Telephlebiidae: Key couplet 4 of 37 ● Top of frons with wide, subtriangular dark mark, almost extending to outer edge a ↑ b ↓ ● Top of frons with narrow dark mark, rounded or almost straight at sides, its base extending to level of antennal bases
5			Telephlebiidae: Key couplet 5 of 37 ● Male with tips of superior anal appendages rounded, or pointed on inner side, not convergent ● Female with comparatively narrow occiput ⇒ species: Southern Evening Darner (Telephlebia brevicauda) a ↑ b ↓ ● Male with tips of superior anal appendages pointed or convergent ● Female with comparatively wide occiput ⇒ species: Eastern Evening Darner (Telephlebia godeffroyi)