116 H. C. FALL. 



Kiesen wetter they differ from the female of fur in the "longer 

 elytra with longer unequal setse, shorter, thicker antennae and larger 

 and differently clothed prothorax." The longer unequal elytral 

 set«3 suggest villiger and it is probable that females of this and 

 bicinctus are very similar. 



4. I*, villiger Reit. — Very similar to fur, the differences being as follows: 

 The size on the average is a trifle smaller; the eyes in the male a little smaller 

 and the front correspondingly wider; median line of disk of pronotum not promi- 

 nent at the constriction ; elytra slightly narrower across the humeri, which are 

 a little less prominent, the sides behind the humeri never faintly sinuate as in 

 fur, but either straight or very slightly arcuate ; strial punctures finer, the inter- 

 spaces distinctly wider than the striae ; hairy vestiture in both sexes longer and 

 more bristling, the alternate interspaces with much longer hairs alternating with 

 the shorter ones, the long hairs twice as long as the width of the interspaces. In 

 the male the whitish appressed scales are less diffused than in fur, being usually 

 condensed both behind the humeri and posteriorly in two small spots centering 

 on the fourth and eighth interspaces, with a few intermediately placed. In the 

 female the whitish scales are as usual more conspicuous, and continuous from the 

 fourth to the ninth interspaces anteriorly, but usually broken into two more or 

 less distinct spots posteriorly. First joint of hind tarsus evidently shorter than 

 the next three united. Length 2.5-3.5 mm. 



Canada (Montreal), Connecticut, New York, Pennsylvania, Michi- 

 gan (Grand Ledge and Adrian), Wisconsin (Bayfield), Nebraska 

 (Lincoln), North Dakota, Washington State (one example referred 

 with doubt). 



5. P. alternatus ». sp. — Similar to agnatus and cognatus, but with much 

 stouter antennae and slightly more elongate elliptical elytra. The elytra are 

 piceous.head and prothorax rufopiceous, antennae, legs and lower surface reddish 

 brown. Interspaces 1-3-5. etc., of the elytra bear short, equal, rather stout, some- 

 what inclined bristles, the remaining interspaces, except the marginal one, quite 

 devoid of bristles, except three or four at the middle of the eighth. The anterior 

 and posterior fasciae are very conspicuous and consist of densely aggregated white 

 scales, which are unusually broadly oval, being scarcely twice as long as wide. 

 Length 2.75 mm. 



This very distinct and beautiful species is represented by a single 



female specimen in the Hubbard and Schwarz collection, taken at 



Los Gatos, California. 



6. P. Cielebs n. sp. — Very similar to/«r, but differs in its distinctly larger 

 and more prominent eyes, slightly more prominent humeri and the minute setae 

 of the strial punctures. The eyes are larger and the front narrower than in any 

 other species of the subgenus ; the setae of the elytral interspaces are very short 

 and much inclined, almost precisely as in fur, and the elongate whitish scales are 

 also distributed nearly as in that species; the color is uniform brown. Length 

 3.5-3.65 mm. 



