Coastal Evening Darner (Telephlebia tryoni)

The Coastal Evening Darner (Telephlebia tryoni) 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, 7 of which are pertinent to Telephlebia tryoni. 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	Coastal Evening Darner (Telephlebia tryoni)	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 narrow dark mark, rounded or almost straight at sides, its base extending to level of antennal bases b ↑ Telephlebiidae: Key couplet 6 of 37 ● Waist on abdominal segment 3 of male little narrower than that on segment 4 ● Abdominal segment 4 of female markedly constricted ● Tips of superior anal appendages of male pointed but not convergent b ↑ Telephlebiidae: Key couplet 7 of 37 ● Wings with basal and nodal markings connected or separated, nodal mark extensive behind radius ● Top of frons with almost circular dark mark ● Superior anal appendages of male considerably longer than inferior appendage, and larger than greatest width of tergum 10 b ↑ Telephlebiidae: Key couplet 8 of 37 ● Dark wing markings not covering hypertriangles in either wing ● Lower basal margin of male superior anal appendages rounded ⇒ species: Coastal Evening Darner (Telephlebia tryoni) b ↑
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 6 of 37 ● Waist on abdominal segment 3 of male markedly narrower than that on segment 4 ● Abdominal segment 4 of female almost parallel-sided ● Tips of superior anal appendages of male pointed and convergent ⇒ species: Northern Evening Darner (Telephlebia cyclops) a ↑ b ↓ ● Waist on abdominal segment 3 of male little narrower than that on segment 4 ● Abdominal segment 4 of female markedly constricted ● Tips of superior anal appendages of male pointed but not convergent
6			Telephlebiidae: Key couplet 7 of 37 ● Wings with basal and nodal markings widely separated, nodal mark extending behind radius only as a narrow band along subnodus ● Top of frons with narrow pentagonal dark mark in male, irregularly-shaped mark in female ● Superior anal appendages only slightly longer than inferior appendage, or larger than greatest width of tergum 10 ⇒ species: Carnarvon Evening Darner (Telephlebia undia) a ↑ b ↓ ● Wings with basal and nodal markings connected or separated, nodal mark extensive behind radius ● Top of frons with almost circular dark mark ● Superior anal appendages of male considerably longer than inferior appendage, and larger than greatest width of tergum 10
7			Telephlebiidae: Key couplet 8 of 37 ● Dark wing markings covering hypertriangle in both wings ● Lower basal corner of male superior anal appendages strongly angled ⇒ species: Tropical Evening Darner (Telephlebia tillyardi) a ↑ b ↓ ● Dark wing markings not covering hypertriangles in either wing ● Lower basal margin of male superior anal appendages rounded ⇒ species: Coastal Evening Darner (Telephlebia tryoni)