Insect Orders
The Odonata Order: Dragonflies and Damselflies
a.
b.
c.
d.
e.
f.
g.
1a. 3 short, stiff pointed valves at the tip of the abdomen (Figures a. and b.)
See 2 (Suborder Anisoptera)
1a. 3 long, caudal tracheal gills at the tip of the abdomen (Figures c. and d.)
See 3 (Suborder Zygoptera)
2a. Prementum stalked and spoon-shape (Figure d.)
2b. Prementum triangular in shape (Figure e.)
3a. Prementum and lobes of labium flat or nearly so (Figure f.)
3b. Prementum and palpal lobes of labium forming a spoon-shaped structure (Figure g.)