● 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 parallel or divergent, not converging at tips, each bearing a long, curved ventrobasal branch
a ↑
Gomphidae: Key couplet 19 of 47
● Anterior of abdominal segments 3 and 4 with mid-dorsal yellow band, sometimes narrow, or entirely yellow
b ↑
Gomphidae: Key couplet 27 of 47
○ Abdominal terga 9-10 usually marked with black or chocolate brown ○ If yellow or reddish, then tergum 8 substantially black
b ↑
Gomphidae: Key couplet 32 of 47
● Metanepisternum substantially pale ● Pterostigma yellow, brown or black, its length more than 3.3 times its maximum width
b ↑
Gomphidae: Key couplet 33 of 47
● Black and yellow or greenish-yellow, lacking lilac colouration ● Metepimeron posteriorly not margined with brown
b ↑
Gomphidae: Key couplet 35 of 47
● Antehumeral stripe aslant, isolated or its lower end fused with collar ● Black mark on lower mesepimeron extending to level of, or engulfing, metastigma ● If not, metapleural suture lined with black
⇒ genus: Austrogomphus
b ↑
Gomphidae: Key couplet 39 of 47
○ Abdominal segment 10 yellow, or black and yellow above
b ↑
Gomphidae: Key couplet 42 of 47
● Antehumeral stripe usually isolated from collar ● If fused, a black stripe present along all or most of line of intersegmental suture, interrupted for, at most, a third of length, above metastigma
b ↑
Gomphidae: Key couplet 44 of 47
● Abdominal tergum 8 with basal, mid-dorsal yellow stripe, sometimes short, and lacking basal yellow ring
a ↑
Gomphidae: Key couplet 45 of 47
● Superior appendage of male swollen on upper surface just before tip ○ Female occiput unarmed ● Vulvar scale narrow, elongate ○ [The pterostigma is slightly swollen and usually 'windowed', with a heavy, blackish outer margin and a paler centre, commonly pale brown]