32 MEMOIRS ON THE COLEOPTERA 



specimens, is more broadly oval, has a larger head and much stronger, 

 denser abdominal sculpture, the other is labeled California. Con- 

 color Kirby, given as a synonym of cyclophorus in the Henshaw 

 list of Coleoptera, has no such status, being a perfectly distinct 

 species. 



Porcinolus Muls. 



The type of this genus, murinus Fabr., is a small species, much 

 inferior in stature to the smallest Byrrhus, with which it was con- 

 founded by Melsheimer and LeConte, possibly because of the 

 somewhat similar style of ornamentation; it is more properly 

 associable with Curimus and Syncalypta, as shown by the short 

 erect bristles of the upper surface, among other features. The 

 first of the two following species differs from murinus chiefly in its 

 larger size, very much more broadly rounded outline and longer 

 and more conspicuous erect bristles; the second is more like murinus 

 but has longer erect bristles and relatively very much more elongate 

 elytra: 



Form very broadly, evenly elliptical, convex, black, the legs feebly rufo- 

 piceous; erect bristles of the upper surface claviform, very numerous, 

 irregularly but evenly distributed and about half as long as the width 

 of the scutellum; head evenly convex, very densely and rugosely 

 punctate, with a smoother transverse line at the middle of the vertex, 

 the pubescence very short, coarse and close; prothorax slightly less 

 than half as long as its basal width, in outline as in Byrrhus, ex- 

 tremely minutely, subasperately and not densely punctate, the 

 general surface shining where exposed, the pubescence short, coarse, 

 dark and sublineate in part, much variegated with paler; scutellum 

 densely nigro-pubescent; elytra scarcely at all longer than wide, 

 with arcuate sides, gradually converging from slightly behind the 

 middle through the narrowly rounded apex; surface very finely and 

 simply striate, densely clothed with short, coarse, dark cinereous 

 hairs, becoming broadly condensed and blackish along the alternate 

 intervals and with a transversely lunate common area, inclosed by 

 broad and somewhat broken lines of confluent spots, formed by pale 

 cinereous hairs, the two lines uniting at lateral fourth and basal 

 third; abdomen finely, feebly, not densely sculptured basally, be- 

 becoming very coarsely, densely and rugosely so apically, the sutures 

 all very coarse and deep; metasternal punctures well separated 

 medially, dense laterally. Length 4.25 mm. ; width 3.0 mm. Kansas 

 (Baldwin) crescentifer n. sp. 



Form narrower than in the preceding and smaller in size, very evenly 

 oval, more nearly like the European murinus but with much longer 

 and rather more numerous erect claviform bristles, deep black 

 throughout, the punctures of the head and pronotum rather coarse, 



