Color of body, number | Hairs present on back | Head projections | Length mm, pronotum front - elytra rear

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Number scored for a state is in green.

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1. Length mm, pronotum front - elytra rear

35Under 10    1110-17    1Over 15, average 20

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2. Color of body, number

341    15More than 1

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3. Head projections

16None	2One cross ridge	5Pair of protuberances	4Single horn	6Single protuberance	1Two bowed horns	13Two cross ridges	4Two straight horns

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4. Hairs present on back

26No	26Yes

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