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Species Prumnacris rainierensis - Cascade Timberline Grasshopper

Grasshopper - Prumnacris rainierensis - male Grasshopper - Prumnacris rainierensis - male Grasshoppers Mount Rainier - Prumnacris rainierensis - male - female Alpine Grasshopper - Prumnacris rainierensis - female Grasshopper - Prumnacris rainierensis - female Podismini (Spur-Throated Grasshoppers) - Prumnacris rainierensis Alpine Grasshopper - Prumnacris rainierensis - male Grasshoppers near Mt. Rainier - Prumnacris rainierensis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Orthoptera (Grasshoppers, Crickets, Katydids)
Suborder Caelifera (Grasshoppers)
Family Acrididae (Short-horned Grasshoppers)
Subfamily Melanoplinae (Spur-throated Grasshoppers)
Tribe Podismini
Genus Prumnacris
Species rainierensis (Cascade Timberline Grasshopper)
Synonyms and other taxonomic changes
Asemoplus rainierensis Caudell, 1907. Type locality: Paradise Valley, Mount Rainier, Washington
Prumnacris rainierensis (Caudell) J.A.G. Rehn & J.W.H Hebard, 1944
Identification
Very similar and probably very closely related to Buckellacris; however, with tiny elongate tegmina (front wings) present. If tegmina are missing, it will key out to B. nuda, from which it differs by occuring in the Cascades, and in having the upper surface of the body a lighter more even color (dorso-lateral yellow stripes present, but often hardly visible).

Differs from Asemoplus montanus in less compact shape; males posessing small but distinct triangular furculae; male cerci thicker, not curving back and down apically; different color pattern, with dark stripe regular in shape and continuous (not irregular and broken) along top sides of pronotum.
Range
Near timberline in Oregon and Washington Cascades, perhaps into southern British Columbia.
Habitat
"Alpine Meadows"
Food
Said to be associated with Lupinus (as food?). Caudell described them as numerous in Paradise Valley, where they were destroying grass and small plants.