I 



junei,oo.] Casey: On North American Colkopte ;a. 141 



4 — Large species, lo mm. or more in length ; vestiture cinereous to ochreous, the pale 

 points of the pronoUim cinereous, sometimes ochreous and less distinct ; elytra 

 with a large oblong area of dense pubescence at each side, extending two-fifths, 

 and elsewhere marniorate with black and cinereous or ochreous hairs ; ventral 

 segments each with the usual lateral dark spot, that of the basal segment very 

 large; median foveas of the male very small. Length IO.O-12.5 mm.; width 



3.9-5.3 ram. Texas to California marmoratus Say 



Smaller species, always distinctly less than 10 mm. in length 5 



5 — Pronotal punctures fine and more distinctly separated ; body moderately large, 

 the elytra marmorate with cinereous and black, usually sublransversely, and with 

 certain parts of the surface uniformly clothed with the pale hairs, the abdomen 

 densely clothed with whitish pubescence, with black lateral spots ; ventral foveolse 

 of the male much larger than in viarmoratiis. Area of uniform pale pubescence 

 subquadrate, extending from near the base to basal third and from the side mar- 

 gin nearly to the middle. Length 7.5-8.4 mm.; width 3.5-3.75 mm. Atlantic 

 Coast from Canada to Florida (Palm Beach); \_iiiihiliis Say, dissector Kby. , and 



iniirinits Lee. nee Linn.] caninus Genu. 



Var. A — Area of pale pubescence extending from near the base scarcely to 

 basal third, but prolonged transversely to or near the suture. Length 7.0-8.3 



mm.; width 3.0-3.75 inm. Pacific Coast mannerheimi Lfc. 



Var. B — .Area of pale pubescence extending entirely across the elytra and pro- 

 longed to about apical third. Length 6.5-8.0 mm.; width 3.2-3.7 mm. 

 Iowa (Keokuk) to Florida; \juihilus Lee. nee Say]...nubipennis, v. nov. 

 Var. C — Area of pale pubescence extending at the lateral margin from the 

 base for two-fifths and dilated internally subbasally nearly to the middle, 

 the entire sutural region also clothed with a very large preponderance of 

 pale hairs. Length 8.3 mm.; width 3.65 mm. Texas (Galveston). 



compactus, v. nov. 



Pronotal punctures (|uite coarse and more close-set; body very small in size, the elytra 



clothed to the tip with dense cinerous pubescence, with a few small black spots, 



especially at base ; ventral pubescence much less dense, especially toward tip. 



Length 5.0 mm.; width 2.2 mm. Oregon rattUS Lee. 



Pronotal punctures coarse, deep and narrowly separated ; body small in size, elon- 

 gate-oval and strongly convex, deep black throughout, the pronotum clothed 

 rather sparsely and almost uniformly with dusky pubescence, with three small 

 widely separated spots of pale pubescence arranged transversely ; scutellum trans- 

 verse, densely clothed with coarse pale yellowish hairs ; elytra rather coarsely 

 and quite closely punctured and clothed uniformly throughout with short blackish 

 inconspicuous hairs ; abdomen densely clothed with white pubescence only in 

 the middle third of the two basal segments, elsewhere more sparsely clothed 

 with a mixture of white and fuscous hairs ; femora annulated. Length 5.6 mm.; 



width 2.4 mm. California medialis, sp. nov. 



6 — Elytra transversely marmorate with black and cinereous pubescence, the pale hairs 

 generally forming a condensed transverse fascia behind the base, the portion 

 thence to the basal margin having some fulvous hairs intermingled ; body larger 

 and more broadly oval. Length 6.8-7 5 mm. ; width 3.0-3.5 mm. Wyoming 

 to New Mexico (Fort Wingatej fasciatus Lee. 



