Grasshoppers of Wyoming and the West
Entomology
Key to the Melanoplus Species
Previous Step (E')F Cerci expanding slightly greater dorsally, but dorsal expansion not grooved; hind tibiae red; western Colorado.
Melanoplus yarrowii (Thomas)
F' Cerci boot-shaped; "heel" sometimes reduced; "toe" grooved apically; hind tibiae red; eastern Colorado; widespread; an early season species.
