Blister beetles are one-half to one inch. long and have comparatively soft bodies. The head is broad and vertical. The section of the body between the head and the wings (prothorax) is distinctly narrower than the wings, and usually is slightly narrower than the head. Thus it appears that the insect has a neck. The wing covers are soft and flexible, and the legs are comparatively long. Striped blister beetles are about 5/8 inch long and one-fourth as wide. They are gray to brown with yellow stripes running lengthwise of the wing covers. The ash-gray blister beetle is about 1/2 inch long and is completely gray. The black blister is about 1/2 inch long and is solid black. The margined blister varies from 5/8 to 1/2 inch long and is black w

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