Melanoplus confusus 13-G
Adult: *Side of pronotum with a patent leather shine and a definite line through the eye.

Immature: *Diagonal dark stripe bordered by narrow light lines through the eye. Cercus evident in later instars. First instars usually appear by early May.

Melanoplus sanguinipes 14-F
Adult: *Distinctive hump between the second pair of legs in males. The male subgenital plate distinctive.

Immature: First instars usually appear in late May, about 2 weeks later than M. confusus. *Early instars have speckled appearance.

Melanoplus infantilis 15-G
Adult: *Size small with a beelike striping on the abdomen. *Frontal costa dark, sometimes with spots along the margins. The cheek area is usually cream-colored. Most are adults by the end of June. Cercus boot shaped.

Immature: First instars usually appear by mid-May.

Melanoplus gladstoni 16-M
Adult: *Hind femora banding. *Hind femora flattened below base.

Immature: Look much like M. infantilis except gladstoniare usually adults by the end of June. This species lacks the frontal costal spots but has a very dark clypeus.

Melanoplus packardii 17-M
Adult: Most resemble M. bivittatus but are smaller. *Two light stripes down the pronotum.

Immature: *Generally tan or green and covered with brown spots over the whole body.

Melanoplus bivittatus 18-M
Adult: *Compound eye uniformly spotted. *Two clear yellow stripes from the head to the wing tips. Size large. Color usually an olive green with yellow.

Immature:*Bright green or tan is the general body color. The definite black band on the femur and large size usually aid in this species' identification. First instars usually appear by mid-May.

Melanoplus femurrubrum 19-M
Adult: *Black band on outer face of femur. A pronounced crest and usually a large cream-colored cheek. Strongly contrasting black and white color is similar to M. dawsoni. *Underside of abdomen and inner surface of femur bright yellow with red tibia. Tip of male abdomen swollen.

Immature: First instars usually appear by early June.

Melanoplus dawsoni 20-M
Adult: *General body color a shiny patent leather look.Compound eye with up to 10 white spots. *Both sexes usually have reduced wings. See fig. 2 on p. 4, description of wings. Underside bright yellow.

Immature: First instars usually appear by early July.

Melanoplus keeleri 21-G
Adult: Hind femora yellow below. Hind tibia red with a black spot or band at its base.

Immature: *Two distinct white lines running parallel through the compound eye. *Large cream-colored area covers the cheek and extends to cover the whole side of the pronotum (pattern may vary). First instars usually appear by mid-June.