310 GEO. H. HORN, M. D. 



the tarsi, but is excavated slightly externally. These tarsi resemble 

 those of Longitarsus, although the first joint is really longer in pro- 

 portion to the tibia. 



In the " Genera" Chapuis states that the anterior coxal cavities 

 are open, but the error has already been noticed, and, in 1873, 

 Crotch had placed the genus in the series with closed cavities. 



The European species do not seem to exhibit any well defined 

 sexual characters, but these are quite well marked in all our species, 

 although less distinct in subkevls. 



The following species are known to inhabit our fauna : 



Last ventral segment of male distinctly impressed; first joint of anterior tarsi 

 broadly dilated piinctulata. 



Last ventral of male convex, not impressed. 



Elytra with very distinct interstrial punctures, those of the strise well im- 

 pressed ; abdomen numerously punctate; first joint of anterior tarsi male 

 rather broadly dilated. 

 Above uniform iu color, dark bronze, form distinctly oblong. ..convexior. 

 Above bicolored, thorax black bronze, elytra blue-green ; form more evi- 

 dently ovate elegaus. 



Elytra without distinct interstrial punctures, those of the striae fine and feebly 

 impressed ; first joint of anterior tarsi male not dilated in oval form. 



sublteTis. 



The first two species have very wide distribution, the other two 

 are more restricted. 



P. piinctulata Mels. — Form elongate oval, little narrower in front, mod- 

 erately convex piceous, surface dark bronzed shining. Antennje a little longer 

 than half the body, three basal joints pale, the outer joints brownish. Head 

 sparsely indistinctly punctate, the surface usually slightly alutaceous. Thorax 

 a little more than half wider at base than long, distinctly narrowed iu front, 

 sides feebly arcuate, distinctly obliquely truncate at front angles with feeble 

 post-apical angulation, disc moderately convex, the punctures rather coarse, but 

 not dense, the intervals usually distinctly alutaceous. Elytra not wider at base 

 than the thorax, humeri obliquely rounded, sides moderately arcuate, widest in 

 front of middle, disc moderately convex, punctato-striate, strire feebly impressed, 

 punctures coarse, rather close, but not serrate, intervals slightly convex, scarcely 

 wider than the striae, each with a single series of fine punctures. Body beneath 

 piceous, shining. Abdomen distinctly punctate and alutaceous, the punctures 

 coarser, more deeply impressed and sparser along the middle, denser at the sides, 

 sparsely pubescent. Anterior and middle femora piceous, the posterior distinctly 

 bronzed, the tibise rufotestaceous, darker at middle. Length .08 — .10 inch.; 2 — 

 2.5 mm. 



The male has the first joint of the anterior tarsi broadly dilated. 

 The last ventral segment is sinuate each side, the middle of disc 

 near apex with a semi-oval depression. 



