● Generally no incomplete antenodal crossvein proximal to Ax1 in any wing ● End of abdomen not elongate, mid-dorsal length of abdominal tergum 9 less than 2.3 mm in male, 2.1 mm in female
b ↑
Gomphidae: Key couplet 10 of 47
● Superior anal appendages converging at tips, bearing basal, ventral to lateral spine or toothed spur
b ↑
Gomphidae: Key couplet 11 of 47
● Upper projection of bipartite sternum 11 concealed by basal, toothed spine of superior anal appendage ○ From eastern and northern Australia
⇒ genus: Hemigomphus
a ↑
Gomphidae: Key couplet 12 of 47
● Abdominal sternites 7 and/or 8 each with pair of strong, central setal tufts protruding below ventral carina
b ↑
Gomphidae: Key couplet 13 of 47
● Tip of superior appendage abruptly folded inward ● Setal tufts present or absent on sternite 7
b ↑
Gomphidae: Key couplet 16 of 47
● Setal tufts lacking from sternite 7
⇒ species: Zebra Vicetail (Hemigomphus comitatus)
a ↑
Gomphidae: Key couplet 19 of 47
● Anterior part of abdominal segments 3 and 4, in front of supplementary transverse carina, with broad, mid-dorsal black patch or band
a ↑
Gomphidae: Key couplet 20 of 47
● Ovipositor less than half length of sternum 9
b ↑
Gomphidae: Key couplet 21 of 47
● Two or three (occasionally one) crossveins between sectors of arculus proximal to fork of Rs in hindwing ○ From eastern and northern Australia
⇒ genus: Hemigomphus
b ↑
Gomphidae: Key couplet 22 of 47
● Occiput armed with central, more or less upright spine