June, is 9 s.] Casey : North American Coleoptera. 63 



the broadly rounded basal angles to the apex, the latter much narrower than the 

 base and evenly and more strongly arcuate ; surface densely granulatorugose 

 throughout, the median line very fine and subobsolete. Elytra three-fifths longer 

 than wide, rather wider than the prothorax and much more than twice as long, 

 very densely granulatorugose and opaque, the punctures distinct throughout, 

 with about two impressed series along the lateral margin. Female. — A little 

 larger and paler in color than the male, with more shining elytra, upon which 

 there are more distinct traces on each of three or four feeble ridges. Prothorax 

 larger, fully as wide as the elytra, rounded at the sides, widest just behind the mid- 

 dle, the surface more sparsely and decidedly granose toward tip. Elytra scarcely 

 three-fifths longer than wide, twice as long as the prothorax. Length 3.0-3.5 

 mm.; width 1. 1-1.2 mm. Indiana pruinosus, sp. nov. 



6 — Elytral punctures only distinct near the base, where they are fine. Female. — 

 Evenly cylindrical, piceous, the legs and antennae paler; pubescence very short, 

 even, extremely dense, yellowish in color and conspicuous on the elytra ; lustre 

 rather shining. Head evenly convex, minutely granulato-rugose, the epistomal 

 impression small and rather feeble. Prothorax not quite as long as wide, the 

 sides parallel and feebly arcuate ; apex broadly and evenly ogival ; surface mi- 

 nutely granulose, becoming nearly smooth at the sides toward base, the granules 

 coarse and pronounced toward apex except laterally. Scutellum quadrate, feebly 

 convex, dull. Elytra fully three-fourths longer than wide, about twice as long as 

 the prothorax, smooth and alutaceous, without trace of impressed lines at any 

 part. Abdomen rather convex, the second segment somewhat longer than the 

 first. Length 2.8-4.0 mm.; width 0.9-1.4 mm. California (Sta. Cruz Mts.). 



acuminatus, sp. nov. 



7 — Elytra with fine, even and somewhat impressed strke in both sexes. Male. — 

 Cylindrical, blackish, the elytra generally a little paler; legs and antennae pale, 

 the flabellum infuscate ; surface dull, the humeral callus more shining. Head 

 short, inserted to the eyes which are well developed and strongly convex ; sur- 

 face but feebly convex, densely scabrous and opaque ; antennal joints very short, 

 the rami very long and slender. Prothorax a little shorter than wide, parallel 

 and straight at the sides, broadly and evenly rounded in apical third or fourth, 

 with a minute sinus at the middle ; surface coarsely, densely and roughly gran- 

 ulato-scabrous throughout the width, becoming much more finely so and smoother 

 toward base. Scutellum moderate, subquadrate. Elytra three-fourths longer 

 than wide, a little more than twice as long as the prothorax and rather wider, 

 densely dull and finely granulato-rugose, the second and fifth intervals uniting 

 and rather convex near the declivity, the ninth also becoming broader and slightly 

 convex behind. Female. — Rather shining and dark rufo-testaceous throughout, 

 the prothorax similar in form but rather shorter and fully as wide as the elytra, 

 with the rugulosities more distinct and isolated, nearly smooth toward base, the 

 head more elongate, narrower and with the eyes small and distant from the pro- 

 thorax; elytra rather flattened on the posterior declivity, with the intervals 

 slightly uneven. Length 30-4.2 mm.; width 0.9-1.4 mm. California (Sta. 

 Cruz Mts ) ramicornis, sp. nov. 



8 — Elytra with rather strong punctures unevenly arranged throughout. Male. — 

 Cylindrical, blackish and opaque, the elytra flavate and less dull ; legs paler, the 



