Grasshoppers of Wyoming and the West
Key to the Melanoplus Species
Previous Step (D')
E Smaller branch of cerci on ventral side; hind tibiae red; plains and lower foothills,
Melanoplus keeleri (Thomas)
See M. keeleri fact sheet from Dr. Pfadt's Field Guide to Common Western Grasshoppers
E' Smaller branch of cerci on dorsal side.
F Smaller, male 15.5 mm, female 20 mm long; apex of subgenital plate not square as
viewed from rear; ventral arm of cerci often comparatively straight, tip often rounded;
hind tibiae blue; foothills of eastern Colorado, occasionally on eastern plains.
F' Larger, male 22 mm, female 24 mm long; apex of subgenital plate rectangular as
viewed from rear; ventral arm of cerci strongly curved downward, tip narrowing to
a point; hind tibiae red, blue or brown; mountains at moderate elevations; uncommon.
Melanoplus alpinus Scudder
|Back view of subgenital plate
See M. alpinus fact sheet from Dr. Pfadt's Field Guide to Common Western Grasshoppers
Grasshoppers of Colorado Contents