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Insect Orders

Ephemeroptera: Mayflies

Odonata: Dragonflies

Hemiptera: True Bugs

Trichoptera: Caddisflies

Lepidoptera: Moths and Butterflies

Coleoptera: Beetles

Diptera: Flies

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Key to the Orders of the Class Insecta

r.

s.

t.

u.

v.

w.

x.

y.

z.

aa.

Back

7a. Lateral gills present on abdominal sections (Figures r. and s.)

Ephemeroptera

7b. Lateral gills absent on abdominal sections (Figure t.)

Odonata

 

8a. Three Pairs of jointed legs on thorax (can be very small) (Figure u.)

See 9

8b. True legs absent, prolegs may be apparent (Figures v. an w.)

Diptera

 

9a. Large fang-like jaws; Compound eyes absent (Figures x. and y)

Coleoptera (Larva)

9b. Piercing mouthparts; Compound eyes present (Figures z. and aa.)

Hemiptera