222 GEO. H. HORN, M. D. 



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

 triangular emargination surrounded by a slight depression. 



i^ewa/e. —Anterior tarsi moderately dilated ; last ventral entire. 

 A very distinct species by the dense punctuation of the head and 

 thorax. In form it resembles the larger specimens of fom<ifus. 



Occurs in Canada, Iowa, Illinois and Kansas. 



P. liCCOntei n. sp. — Black, sometimes slightly bronzed, antennfe nearly as 

 long as the head and thorax, black, joints 4-6 very little longer than wide, 7-10 as 

 broad as long; head orbicular, coarsely punctured at the sides, a wide smooth 

 space at middle, beneath with very few punctures; thorax a little wider than the 

 head, as wide as long, distinctly narrowed in front, punctures coarse, rather 

 sparsely and irregularly placed, each bearing a short hair, a broad median smooth 

 space; elytra scarcely wider than the tho7-ax, conjointly nearly square, densely 

 punctured, sparsely pubescent ; abdoMen moderately densely punctured near the 

 base, more sparsely near the tip; beneath more coarsely punctured than above. 

 Length .36 inch ; 9 mm. 



Male. — Anterior tarsi very broadly dilnted, patellate ; last ventral with a large 

 and 'deep triangular emargination surrounded by a distinct depressed margin ex- 

 tending in triangle forward; penultimate segment distinctly emarginate at middle 

 and slightly depressed longitudinally. 



i^ewta/e.— Anterior tarsi moderately dilated ; ventrals entire. 

 Apart from -the sexual characters of the male it is very difficult to 

 separate thi^species and the next. As a rule the antennae of Lecoiitei 

 are shorter and stouter, and the punctures of the thorax very irregularly 

 placed, leaving larger, smooth spaces. As in the next species the elytra 

 vary in color. They are normally entirely black, sometimes, however, 

 reddish brown with a large oval black space extending from the base to 

 the apex along the suture. 



Occurs in California, also in Colorado. 



I*, aurulentus n. sp. — Black, surface slightly bn nzed ; legs sometimes pi- 

 ceous; antennae slightly shorter than the head and thorax, piceous, joints 8-10 as 

 wide as long; head sub-quadrate, coarsely punctate at the sides, smooth at middle 

 and in front; beneath punctate at the sides; thorax very little wider than the 

 head, as wide as long, distinctly narrowed in front; surface smooth at middle, at 

 sides not densely nor coarsely punctured, the punctures very regularly placed, each 

 bearing a short hair; elytra a little wider than the thorax, conjointly nearly 

 square, moderately densely punctate, the punctures much finer than on the thorax ; 

 abdomen sparsely punctured, a little more finely than on the elytra; beneath more 

 distinctly punctured than above, and rather more densely. Length .,">0— .38 inch' 

 7.5 — 9.5 mm. 



3fa/e.— Anterior tarsi broadly dilated; last ventral segment with a broadly tri- 

 angular emargination, surrounded by a narrow depressed border. 



i^emaZe. — Anterior tarsi moderately dilated; ventrals entire. 



The color of the elytra varies here as in the preceding species. The 

 differences have already been explained, but the sexual characters of the 

 male are the only reliable means for separation. 



