● 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 yellow with dark T-mark, or black with pair of yellow spots
b ↑
Corduliidae: Key couplet 8 of 11
● Basal half or more of abdominal tergum 7 yellow, with or without narrow, mid-dorsal black line
b ↑
Corduliidae: Key couplet 9 of 11
● Top of frons with dark T-mark
b ↑
Corduliidae: Key couplet 10 of 11
● Male superior appendage with strong medioventral spine ○ Female anal appendages approximately 2 mm long
b ↑
Corduliidae: Key couplet 11 of 11
● Superior appendages similar in length to inferior appendage, not reflexed at tip ● Black distal band on abdominal tergum 7 of female occupying approximately 20% or less of mid-dorsal length of segment