204 GEO. H. HORN, M. D. 



slightly narrowed in front; sides not sinuate, dorsal punctures moderately deeply 

 impressed; elytra a little wider than the thorax, a little wider conjointly than 

 long, rather finely and closely punctate, finely pubescent, slightly bronzed ; ab- 

 domen shining, sparsely pubescent, rather coarsely punctate, the punctures much 

 sparser on the apical segments ; beneath more regularly punctured than above ; 

 legs piceous, the anterior coxse usually, the middle coxse sometimes pale. Length 

 .24 inch : 6 mm. 



Male. — Anterior tarsi moderately dilated; last ventral segment with a triangu- 

 larly oval emargination and an elongate triangular impression. 



Female. — Anterior tarsi rather slender; last ventral entire. 

 Apart from its color this species resembles /erreijoeww?",'? more closely 

 than any other, and very dark varieties of the latter may be very per- 

 plexing. In the present species the thorax is distinctly narrowed in 

 front, and the abdomen more coarsely and sparsely punctate. 



■ P. micans Grav.— Small, moderately elongate, brownish or piceous, legs tes- 

 taceous; antennte moderately stout, not longer than the head and thorax, piceous, 

 basal 'joint testaceous, joints 5-10 as broad or broader than long; head rather 

 broadly oval, hind angles not punctulate; thorax much wider than the head, as 

 broad as long, slightly narrowed in front, dorsal punctures moderate, equidistant; 

 elytra very little wider than the thorax, conjointly nearly square, densely punc- 

 tured, sub-opaque, finely pubescent; abdomen densely and moderately finely 

 punctured, the punctures coarser than the elytra; surface slightly iridescent, finely 

 pubescent ; beneath densely punctured, especially on the basal segments, the punc- 

 tures coarser than above. Length .18 — .20 inch; 4.5 — 5 mm. 



Male. — Anterior tarsi moderately dilated; last ventral broadly triangularly 

 emarginate, the notch surrounded by a distinct depression. 



Female. — Anterior tarsi very slightly dilated ; last ventral entire. 

 This species, the smallest of the present series, is a little variable in 

 color. It is never black. The elytra by their opacity often seem paler 

 in color than the rest of the surface, and while the legs are usually tes- 

 taceous they are rarely piceous. 



Occurs in Europe, and the eastern United States from Massachusetts 

 to Michigan. 



P. lomatllS Erichs. — Form moderately elongate, black, elytra slightly 

 bronzed; antennfe at base and legs testaceous; antenn?e long, slender, nearly as 

 long as half the body, piceous, the basal joint paler; head oval, distinctly nar- 

 rowed behind the eyes, hind angles scarcely punctulate; thorax oval, wider than 

 the head, distinctly longer than wide and narrowed in front, dorsal punctures 

 moderate, equidistant ; elytra not wider at base than the thorax, gradually wider 

 behind, conjointly longer than wide, densely punctured, pubescence sparse, brown ; 

 abdomen with punctuation not coarser than the elytra but less dense; beneath the 

 margins of the segments paler, not densely punctured, very sparsely pubescent. 

 Length .26— .32 inch; 6.5—8 mm. 



Male. — Anterior tarsi rather broadly dilated ; last ventral with a triangular 

 emargination and impression. 



Female. — Anterior tarsi slender ; last ventral entire. 



