232 COLEOPTERA OF NORTH AMERICA. 



The head is not received in the thorax as far as the eyes, which 

 are large and coarsely granulated ; the front is slightly dilated 

 over the base of the mandibles ; the labrum articulates with the 

 epistoma without any intervening clypeus ; the antennae 11-jointed, 

 slightly thickened externally ; the mentum is small ; the epipleurae 

 are narrow and extend to the tip of the elytra. The anterior 

 coxae are globose, the middle ones have a distinct trochantin, the 

 hind coxae are slightly separated, and the intercoxal process of 

 the abdomen is triangular ; the legs are moderate ; tibial spurs 

 small ; tarsi clothed beneath with long pubescence, the penulti- 

 mate joint somewhat lobed. The hind margin of the third and 

 fourth ventral segments is subcoriaceous. 



Our genera are two : — 



Antennae gradually and slightly thickened externally. Anjedus. 



Antennae with the joints 9 — 11 suddenly larger. Paratenetus. 



Two species of Anaedus are known in our fauna ; one from the 

 Atlantic States, the other from the Gila valley. Paratenetus 

 occurs in the Atlantic States ; it was placed by Spinola in Cle- 

 ridae, and is omitted by Lacordaire ; Erichson referred it to the 

 present family. 



Tribe VII.— IJLOMI1VI. 



Body oval or elongate, winged ; head slightly but suddenly 

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

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

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

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

 mentum is small and trapezoidal, not concealing the ligula ; gular 

 peduncle distinct; antenna? 11-jointed, more or less thickened 

 externally, perfoliate. Elytra with narrow epipleurae. Anterior 

 coxa? subtransverse ; middle coxae inclosed by the sterna, without 

 trochantin ; hind coxae slightly separated ; intercoxal process of 

 the abdomen triangular; legs moderate; tibiae sometimes dilated ; 

 tibial spurs distinct ; tarsi pubescent beneath, the last joint much 

 elongated. The hind margin of the third and fourth ventral 

 segments is subcoriaceous. 



The species are found under bark ; a few also infest articles of 

 commerce. 



