Insect Orders
Key to the Orders of the Class Insecta
k.
l.
m.
n.
o.
p.
6a. Abdomen has 3 or more spikes, filaments, or caudal gills, on apex (Figures k., l., m., and n.)
See 7
6b. Abdomen has fewer than 3 structures on apex or lacking structures on apex (Figures o. and p.)