Follow the key. The characteristics provided are useful for quick field identification. Of course there is variation in the characteristics, however, in general these characteristics work well for the majority of the individuals found in agricultural fields and natural habitats in south and southeast Minnesota, USA.

The shape of the adult beetle is more oval than elongate, and more rounded and convex than flat and slender	The shape of the adult beetle is more elongate to triangular, and more flat and slender than rounded and convex
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