222 MEMOIRS ON THE COLEOPTERA 



virtually not at all constricted at apex, with a polished punctureless 

 space before the middle of the base; scutellum nude, polished, larger 

 and much more obtuse than in air a; elytra three-fourths longer than 

 wide, between three and four times as long as the prothorax and less 

 than one-half wider, parallel, rounded obtusely at apex, the punctures 

 even, only moderately coarse but very deep and perforate, closer than 

 in atra, separated generally by but little more than their diameters; 

 abdomen minutely, extremely feebly and remotely punctulate. 

 Length (9) 6.8 mm.; width 2.5 mm. Colorado (Summit of Mt. 



Arapahoe elevation nearly 13000 feet) morata n. sp. 



3 Vestiture dark or blackish in color, inconspicuous 4 



Vestiture pale cinereous to yellowish, always distinct 5 



4 Body stout, oblong, moderately convex, deep black and rather shining 

 throughout, the elytra dark steel-blue, sometimes violaceous toward 

 the sides; pubescence dark, abundant but not distinct, long, fine and 

 erect on the prothorax; head deeply and very densely punctate, 

 the prothorax scarcely less strongly but loosely, the elytra rather 

 coarsely, very deeply and closely, gradually more finely posteriorly; 

 antenna? (cf) a little more or ( 9 ) somewhat less than half as long 

 as the body, thick, the third and fourth joints equal in both sexes 

 and much shorter than the fifth; prothorax rather large, wider than 

 the head, evidently shorter than wide, strongly constricted at apex, 

 with an irregular and impunctate but otherwise unmodified median 

 line, which does not attain the apex; scutellum closely nigro- 

 pubescent; elytra oblong, parallel, three-fourths wider than the 

 prothorax to nearly twice as wide, obtusely rounded at apex, the 

 sutural angles right; abdomen minutely, sparsely punctulate, some- 

 times picescent. Length 8.8-n.o mm.; width 3.5-4.3 mm. Cali- 

 fornia (northern) viola Lee. 



Body narrower, much more elongate and smaller in size, less convex, 

 shining, deep black, the elytra brighter, dark violaceous-blue, the 

 vestiture similar; head more finely, very densely, the prothorax still 

 more finely, toward the sides closely, dorsally rather loosely, punc- 

 tate, the elytra punctured and with obscure dark pubescence nearly 

 as in viola; antennae longer, extending almost to apical third of the 

 elytra (d 71 ) or beyond the middle of the body (9 ), thick, the joints 

 as in viola; sides behind the eyes converging and nearly straight; 

 prothorax as in the preceding; elytra twice as long as wide, parallel, 

 gradually obtusely rounded at tip, the sutural angles right and sharp, 

 three-fourths to four-fifths wider than the prothorax; abdomen 

 piceous-black, the fine and very feeble punctulation and fine fuscous 

 hairs rather closer than in viola; second joint of the hind tarsi shorter 

 and much more strongly narrowed from apex to base than in that 

 species. Length 8.7-10.0 mm.; width 2.9-3.7 mm. California 



(locality unrecorded) celestina n. sp. 



5 Elytral punctures sparser, separated basally by twice their own di- 

 ameters or more 6 



Elytral punctures distinctly dense throughout 15 



6 Large species, more or less exceeding 10 mm. in average length. . . .7 

 Smaller species, generally much under 10 mm. in length 8 



