junei 9 oo.] Casey: On North American Coleoptera. 105 



Body ferruginous in color th roughou t 2 



Body piceous-brown to black in color ; pronotum broadly impressed at base, parallel 



and evenly distinctly arcuate at the sides 9 



2 — Prothorax less transverse, never so much as one-half wider than long ; body narrow 



and much elongated 3 



Prothorax one-half or more wider than long, the body stouter and more oval in form. .8 

 3 — Prothorax strongly arcuate at the sides, the pronotal punctures fine and close-set, 



the subbasal impression medial only 4 



Prothorax feebly arcuate at the sides, the punctures coarse though generally close- set, 

 the subbasal impression arcuate, deep and extending almost from side to side... 5 

 4 — Antennae stout ; the club robust and densely clothed with fine gray down-like 

 pubescence, the joints increasing in size from the base and forming a gradual 

 transition to the shaft; prothorax one-third wider than long, convex, the basal 

 impression median and feeble, the sides evenly rounded, more convergent an- 

 teriorly, so that the apex is notably narrower than the base, the double margin 

 narrow and feeble, not much more distinct toward base ; elytra oval, two-thirds 

 longer than wide, nearly two-fifths wider than the prothorax ; body elongate- oval 

 in form, the pubescence distinct, fine and sparse on the elytra, with the irregular 

 series of longer hairs characterizing the genus. Length 1.8 mm.; width 0.7 mm. 



Alaska (Kenai) ferruginea Sa/ilb. 



Antennce much less stout, the club similar in structure but narrower ; body narrower, 

 more parallel and more depressed, the pubescence finer and rather denser, the 

 prothorax one-third wider than long, less rounded at the sides, the apex not nar- 

 rower than the base, the lateral margin and basal impression similar, the latter a 

 little stronger; elytra a third or fourth wider than the prothorax, three-fourths 

 longer than wide, closely and finely punctate. Length 1. 7-1. 75 mm.; width 



0.55-0.65 mm. Colorado — Mr. Schmitt ochreosa, sp. nov. 



5 — Elytra finely and rather sparsely punctured 6 



Elytra strongly and more closely punctured ; body smaller, elongate-oval 7 



6 — Body narrow and parallel, the elytra very feebly arcuate at the sides, fully four- 

 fifths longer than wide and only slightly wider than the prothorax, the latter 

 • quadrate, but very slightly wider than long, the sides parallel, and evenly, feebly 

 arcuate throughout, the apex scarcely narrower than the base, with prominent 

 angles, the double edge slightly indexed and notably wider toward base ; an- 

 tennae moderate in length, the three basal joints well developed, the first as wide 

 as the club, which is unusually narrow, sixth and eighth joints very small and 

 subglobular, notably narrower than the fifth, seventh and ninth,- the latter scarcely 

 larger than the seventh, the club virtually 2-jointed {$)■ Length 2.0 mm.; 



width 0.75 mm. Colorado paralalia, sp. nov. 



Body similar in size, sculpture and color, but less parallel, the elytra not quite so 

 elongate and more rounded at the sides, fully two-fifths wider than the prothorax, 

 which is otherwise similar to that of parallela, but more distinctly wider than 

 long, with the parallel sides a little more arcuate ; antennae similar but not so 

 thick toward base, the first joint not so thick as the virtually 2-jointed club ( $ ). 

 Length 2.1 mm.; width 0.8 mm. Locality not recorded. 



angusticollis, sp. nov. 



