| 1. | The head is short and somewhat covered by the prothorax.
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| 2. | The head is dark and much narrower than the prothorax.
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| 3. | The sides of the head and the prothorax are spiny.
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| 4. | The prothorax is often reddish and has bright markings.
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| 5. | The prothorax has sclerotized sternal spatula ( most ).
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| 6. | The two pale lines merge into a single median line on the prothorax.
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| 7. | Head, and prothorax black with blue shiny sheen.
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| 8. | The head is as long as, or longer than, the prothorax.
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| 9. | They have brown ellipsodial bodies with a prothorax resembling a monk's cowl.
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| 10. | The prothorax is much narrower than the base of the elytra on the abdomen.
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