North American Coleopterous Insects. 



153 



clothed with very dense hairs. In our insect the con- 

 formation of the antennae is the same as in the female of 

 Sandalus^ excepting that they are much more elongated ; 

 the mandibles are less pronnnent, and have the tooth on 

 the superior side near the tip, which is therefore emar- 

 ginate, or rather bifid, and are destitute of any membran- 

 ous covering at base ; the tihia3 are not quadrangular, the 

 tarsi are simple beneath, and the mentum is somewhat 

 transversely oval, with a robust dentiform process before. 

 It can be separated under the name of Zenoa. 



I have found it under the bark of decaying trees. 



Vid. Gen. Analestes, Leach, or Cebrio. Probably 

 C. Ucolor^ but it does not appear to agree with Fabricius's 

 description. 



Lycus, Fabr- 



1. L. modestus. Black j Thorax fulvous, with a black 



1 



disk. 



I— 



Inhab. Ohio. 



F 



Body black, opake : antenna, second joint minute, 

 nearly half the size of the third : mandibles 1 rufous : 

 palpi, terminal joint rather oval than securiform : thorax 

 broader than long, as wide as the base of the elytra, red- 

 dish-fulvous, with a black disk extending to the base, disk 

 a little convex, without any carlnate line, each side a little 

 concave, lateral 



edge 



nearly rectilinear, the posterior 

 angles not excurved, and not very acute at tip, anterior 

 edge regularly arcuated: elytra black, with elevated, 

 longitudinal lines, and in the intervening spaces are nu- 

 merous transverse, elevated lines, and a small longitudinal 

 one ; wings black, tinged with rufous on the costal base. 



