○ Wings hyaline ● Two to four, occasionally five, cells in triangles and hypertriangles
b ↑
Telephlebiidae: Key couplet 11 of 37
● Both wings with a single supplementary radial vein (Rspl) ● Posterior angle of hindwing triangle and 1A joined by a short crossvein
b ↑
Telephlebiidae: Key couplet 12 of 37
● Male with three or fewer, or without, distinct longitudinal dorsal ridges on segment 10 ○ Anal appendages of female shorter than to slightly longer than segment 10 ● Supra-anal plate rounded to subtriangular
⇒ genus: Austroaeschna and Dromaeschna
a ↑
Telephlebiidae: Key couplet 13 of 37
○ Abdominal segments 9 and 10 and anal appendages largely dark brown or black
b ↑
Telephlebiidae: Key couplet 14 of 37
● Front of synthorax with one or two pale stripes over virtually the entire length on each side, or pale patches with or without a long pale stripe ● Abdominal terga 3-8 either lacking basal pale marks, or with both basal and central or distal marks
⇒ genus: Austroaeschna and Dromaeschna
b ↑
Telephlebiidae: Key couplet 17 of 37
● Side of synthorax with either unequal, pale stripes or pale patches on a dark background
b ↑
Telephlebiidae: Key couplet 18 of 37
● Top of frons dark brown to black in centre and along anterior and posterior margins, otherwise pale, broadly continuous with pale lateral patch at side of anterior frons
b ↑
Telephlebiidae: Key couplet 28 of 37
● Postgenae immediately behind eye-margin black, with bright yellow or brown mark near lateral notch ● Front of synthorax with pale, often ill-defined patches on dull blackish brown background
b ↑
Telephlebiidae: Key couplet 34 of 37
● Hind margin of occipital triangle markedly convex, that of female flanked by rounded tooth of variable length