Melanoplus differentialis

Introduction:

They are brownish or greenish, and as they age the color will darken. Some nymphs can be bright yellow. There are black grooves on the pronotum. The male has bootlike appendages at the end of its abdominal tip. There are inverted chevrons along the hind femur, and the hind part of the tibia is yellowish with black spikes. All adults have yellow tarsi and antennae, or in some cases reddish-yellow antennae.
Life Cycle:

Size 1 1/8 to 2 inches in length
Sexual Dimorphism: yes, females larger, males grow to 28–37 mm, and females grow to 34–50 mm
Metamorphosis: incomplete (egg, nymph, adult)