ORDER COLEOPTERA. 195 



Here the corslet is isometrical, or longer than wide, heart- 

 shaped, truncated behind. The body is elongated. Such are 



Cymindis, Latr. Cymindts anomceus. Fish. Tarus, Clairv. 

 Carabus, Fabr. 



Which have the exterior maxillary palpi filiform, or scarcely 

 thicker at the extremity, with the last articulation almost 

 cylindrical ; the same of tlie labial, larger, almost in form of 

 a hatchet, or reversed triangle in the males at least ; whose 

 head is not narrowed behind, and in which all the articula- 

 tions of the tarsi are entire and nearly cylindrical.* 



Calleida, Dej. 



Entirely similar to Cymindis, except as to the tarsi having the 

 penultimate articulation bifid, and the preceding triangular. 

 This sub .genus belongs to America.-f- 



Demetrias, Bon. 



Analogous to the last by the tarsi, but having the head ovali- 

 form, narrowed behind, and all the exterior palpi nearly fili- 

 form, with the last articulation nearly ovoide, or sub-cylin- 

 drical. 



This sub-genus, like the following, is composed of very 

 few species, inhabiting generally aquatic or humid and 

 covered places, and almost all European.;]: 



Dromias, Bon. 



Generally apterous, with the articulations of the tarsi entire, 

 otherwise like Demetrias.§ 



♦ See the second and third fasciculus of the Hist. Nat. de Coleopt. 

 d'Eur., and the first vol of Spec. Gener. of the Count Dej. 

 f Idem. 

 X Idem. 

 § Idem. 



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