188 GEO. H. HORN, M. D. 



punctures moderately impressed, the first and second more distant than the second 

 and third ; elytra not wider than the thorax, conjointly a little wider than long, 

 moderately closely, not coarsely punctate, pubescence brownish ; abdomen more 

 finely and densely punctured than the elytra, beneath finely and sparsely punc- 

 tate. Length .24 — .30 inch; 6—7.5 mm. 



Male. — Unknown. 



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

 The three specimens before me have the thorax more or less reddish 

 in color, but varying somewhat, it is therefore possible that specimens 

 may occur with that part black. From the preceding species this differs 

 in having the elytra more densely and the abdomen more densely and 

 finely punctured. The antennae are also shorter and more robust. 



Occurs at Alma, Colorado (altitude 10,000 feet). Swift Current, British 

 America and in Wyoming. 



P. cautllS Erichs.— Form rather robust, general color brown, head black; 

 elytra paler than the thorax, the side margin and apex testaceous; legs testaceous; 

 antennae scarcely as long as the head and thorax, piceous, two basal joints pale, 

 joints 4-10 gradually decreasing in length, not longer than wide ; head orbicular, 

 variable in size even in the males, relatively large, the hind angles smooth ; tliorax 

 very little wider than the head, oval, a little longer than wide, distinctly narrowed 

 in front, the sides scarcely perceptibly sinuate, dorsal punctures moderately im- 

 pressed, equidistant; elytra scarcely wider than the thorax, conjointly a little wider 

 than long, dark brown, the sides widely the apex narrowly paler, moderately 

 densely finely punctate, sparsely pubescent; abdomen a little more coarsely punc- 

 tured than the elytra, but not quite so densely, beneath more sparsely punctured 

 than above. Length .20 — .3fi inch: .5—9 mm. 



Male. — Anterior tarsi moderately dilated ; last ventral segment broadlj' semicir- 

 cularly emarginate. 



Female. — Anterior tarsi more narrowly dilated ; last ventral entire. 

 The last ventral segment is often testaceous, as described by Erichson, 

 but this is not constant nor sexual. There are so many small brown 

 species in our fauna that it is unnecessary at this time to make extended 

 comparisons. Strict regard must be had to the characters defining the 

 various sub-divisions, and to the sexual characters of the males. 

 Occurs in the Carolinas, (jeorgia and Florida. 



I*. lie]>aticii!S Erichs. — Form slender, general color brownish, thornx and 

 elytra paler; legs and base of antennse testaceous; antennae as long as head and 

 thorax, piceous, two basal joints testaceous, joints 4-10 gradually shorter, not Ion 

 ger than broad; head black, small, oval, hind angles smooth; thorax oval, dis 

 tinctly narrowed in front, a little longer than wide ; sides nearly straight, a very 

 slight sinuation when viewed laterally, dorsal punctures small and equidistant; 

 elytra wider than the thorax, not longer, than wide conjointly, finely but not 

 densely punctured, sparsely brownish pubescent; abdomen much more finely and 

 densely punctured than the elytra, sparsely pubescent, beneath as finely punc- 

 tured as above but less densely. Length .18 — .22 inch ; 4.5—5.5 mm. 



