Grasshoppers of Wyoming and the West
Entomology
SUBFAMILY CATANTOPINAE (MELANOPLINAE)
A Face markedly slanting back; antennae sword-shaped; body very slender; weak spine
inserted between front legs.
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A' Face nearly vertical or slanting back only slightly; antennae not sword-shaped; body not extremely slender; spine between front legs distinct.
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B Lateral margins of subgenital plate of male, as seen from the side, straight or only slightly convex - never suddenly inflated at base; tegmina almost always short.
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B' Lateral margins of subgenital plate of male, as seen from the side, strongly convex or inflated at base; tegmina variable.
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