380 COLEOPTERA OF NORTH AMERICA. 



Tibial sjjnrs long ; last joint of palpi oval ; 



Intercoxal process triangular, acute ; eyes large. Cnemeplatia. 



Intercoxal process broad, rounded ; eyes wanting. Alaudes. 

 Tibial spurs small ; last joint of palpi securiform ; 



Anterior tib-ire slightly dilated, with the outer angle very much pro- 

 longed; intercoxal process of abdomen acute. Amtnodonus. 

 Anterior tibise veiy broad, triangular, outer angle slightly prolonged ; 

 intercoxal process truncate. Ijphalus. 



Tribe VII.— CRYPTICIXI. 



Body oval, winged ; head received in the thorax as far as the 

 eyes, wliich are transverse, reniform, small, and moderately granu- 

 lated; front moderately dilated at the sides, over the base of the 

 mandibles, truncate anteriorly, with a very short coriaceous cly- 

 peus visible; antenna? tolerably long, slender, outer joints rounded, 

 very slightly thicker; nientum small; gular peduncle distinct; 

 ligula prominent; palpi with the last joint slightly dilated. Elytra 

 with moderate epipleurte occupying the whole of the inflexed 

 portion. Prosternum prolonged behind; mesosternuni concave; 

 metasternum moderately long, with narrow side pieces. Anterior 

 coxae almost rounded; middle coxse with distinct trochantin, the 

 epimera exceedingly short ; hind coxfe not widely separated ; 

 tibia? not dilated; spurs distinct; tarsi with small spines beneath; 

 first joint of hind tarsi very long. 



This tribe is represented in our fauna ))y Cnjpticu.i obsoletun 

 Say, found in the Atlantic district. 



This and allied foreign genera are placed by Lacordaire as a 

 group of Coniontini, with the remark that it should constitute more 

 properly a distinct tribe. It differs very much from Coniontini, 

 as will be seen by the characters given above, and still more by 

 the hind margin of the third and fourth ventral segments, being- 

 very distinctly coriaceous. 



Tribe VIII.— IJLOIWIIVI. 



Body oval or elongate, winged ; liead slightly but suddenly 

 narrowed behind, received in the thorax up to the eyes, which (in 

 our genera) are transverse, eniarginate, and coarsely granulated ; 

 the front is dilated so as to cover the base of the mandibles, and 

 in part the month; the labrum is but slightly prominent ; the 

 meutura is small and trapezoidal, not concealing the lignla; gular 



