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Genus XIII. — Drusilla, Leach, canaliculata, exarata. 2. 



b. The head exserted, always broader than the base of the thorax. 

 * The base and apex of the thorax of equal width ; the base 

 of the elytra not folded ; the joints of the tarsi equal. 

 Genus XIV. — Calodera, Mann, nigrita, protensa, testacea. 3. 



** The apex of the thorax broadest ; the base of the elytra 

 not folded ; the first joint of the tarsi longer than that 

 next following. 

 Genus XV. — Falagria, Leach, sulcata, obscura, nigra, picea. 4. 



*** The apex of the thorax narrow, stipitate ; the base of the 

 elytra folded. The joints of the tarsi equal. 

 Genus XVI. — Autalia, Leach, rivularis, impressa. 2. 



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