﻿184 Journal New York. Ent. Soc. fVoi. hi. 



near hind angles, basal lines strong, elytral stria; not punctured. 

 Length, .53-.60 in. = 13-15 nim. 



Habitat : Canada to Georgia, west to Wisconsin and Wyoming. 



P. grandiceps Cliaiid. — This and the following species are easily 

 known from their allies by the very large head and prominent man- 

 dibles. Length, .56-. 68 in. =z 14-17 mm. 



Habitat : Georgia, North Carolina and Tenn. 



P. rostratus Newm. PI. VII, fig. 3. — Length, .56-.67 in. = 14- 

 16.3 mm. 



Habitat : Canada, New York, south and westward. 



P. substriatus Lee. — Black, shining, thorax broad, much nar- 

 rowed behind and rounded on the sides. Striation of elytra variable, 

 sometimes quite deep, often nearly effaced. Length, .48-.57 in. ;= 12- 

 14 mm. 



Habitat : New Jersey, New York, southward : Missouri to New 

 Mexico. 



P. incisus Lee. — Resembles the preceding, differs in the anterior 

 transverse line of prothorax being nearly effaced, the legs reddish, the 

 hind angles of prothorax smaller. Length, .40-.48 in. = 10-12 mm. 



Habitat : Illinois, Missouri River to Colorado. 



P. vinctus Let. — Black, shining, thorax not transverse, anterior 

 transverse line wanting, elytral stride deep. Length, .43 in. = n mm. 

 Habitat : Georgia, Tennessee, Pennsylvania. 



P. unicolor Say. — Black, opaque, thorax not transverse, sides 

 subsinuate posteriorly, basal impressions single, rather long, elytra finely 

 striato-punctate. Length, .75 in. = 19 mm. 



Habitat : New York to Georgia. 



P. rotundatus Lee. — Black, somewhat shining ; the thorax is 

 broader than long and the hind angles obtuse. Basal strias short, 

 elytra finely striate. Length, .75 in. = 19 mm. 



Habitat : New York and Georgia. 



P. obsoletus Say. — Black, elytral striae deep; legs reddish. 

 Length, .41 in. := 10 mm. 



Habitat : Ohio, Illinois, Alabama, Texas and Florida. 



P. approximatus Lee. — Allied to obsoletus, differs especially in 

 the presence of an anterior thoracic line. Length, .40 in. = 10 mm. 



Habitat: Pennsylvania and District of Columbia. 



