Page:Memoirs on the coleoptera (IA memoirsoncoleopt01case).pdf/36

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The sexual characters of the male, abbreviated cephalic carinæ and antennal characters will distinguish this species at once among its fellows. In the type the head between the eyes has a large rounded concavity, rather abruptly limited, and so regular that it may be a normal character, especially as the specimen is mature and with hard integuments.

The three following species have male sexual characters very much as in tractabilis and also apparently somewhat as in truncativentris and occidentalis, of Bernhauer.