● Three crossveins between sectors of arculus basal to fork of Rs in hindwing ● Bridge crossvein at subnodus ● Ovipositor short, less than half length of tergum 9
⇒ genus: Hemicordulia and Procordulia
b ↑
Corduliidae: Key couplet 3 of 11
● Top of frons brown or black with metallic blue-green reflections
a ↑
Corduliidae: Key couplet 4 of 11
● Black mid-dorsal band strongly constricted at supplementary transverse carina, near anterior end of abdominal segments 6 and 7 ● Male superior appendage with prominent, medioventral spine
⇒ species: Australian Emerald (Hemicordulia australiae)