PTINUS. 37 



to have a projecting point on each side. Its larva 

 resembles that of the preceding species, and is 

 found in similar situations. 



Ptinus pectinicornis is readily distinguished by 

 the remarkable appearance of the antennas, the 

 longer joints of which are so deeply pectinated as 

 to have the aspect of feathered antennas. It is 

 one of the smaller species, measuring in length 

 about the eighth of an inch, and is of a slender 

 habit, with a subcylindric body. It is often found 

 in old wood, and among papers, books, &c. which 

 it perforates and destroys. 



