CERAMBYCID^E 289 



polygonally crowded, a little smaller and separated toward base, 

 the fine raised lines scarcely traceable; legs moderate, the femora 

 strongly swollen; prosternum (cT) alutaceous, very coarsely and 

 deeply, rather irregularly punctate and with a transversely and 

 obtusely angulate smooth area before the coxae, the punctures every- 

 where distinctly separated and well defined. Length (c?) 10.0 mm.; 

 width 3.2 mm. California (locality unrecorded). 



calif ornicum n. sp. 



Form nearly as elongate but less convex, shining, deep and obscure 

 bluish-green throughout above, the legs, antennae and under surface 

 blackish-piceous and without metallic lustre, except a bluish reflec- 

 tion on the prosternum; vestiture nearly as in the preceding; head 

 densely and strongly punctate; antennae (9) half as long as the 

 body, the tenth joint less than one-half longer than wide, the last 

 abruptly narrowed at apex; prothorax two-thirds wider than long, 

 widest behind the middle, the sides strongly, evenly rounded, con- 

 verging and feebly so thence to the apex, more rapidly converging 

 and rounded to the very faintly subtubulate base, very coarsely, 

 deeply, closely punctate, the punctures becoming much smaller, 

 dense and rugulose but still shining at the sides; scutellum small, 

 deeply grooved; elytra scarcely twice as long as wide, parallel, a 

 third wider than the prothorax, very obtusely rounded at the apices, 

 the punctures very coarse but shallow, densely crowded posteriorly, 

 smaller and separated basally, the surface somewhat alutaceous, 

 each puncture with a small polished green spot at its bottom; 

 prosternum finely, sparsely punctulate and shining. Length ( 9 ) 9.3 

 mm.; width 3.2 mm. Canada frigidum n. sp. 



Form shorter, more oblong and still less convex, shining and metallic 

 bluish anteriorly, obscure greenish on the elytra; antennae blackish- 

 piceous, the basal joint black, the legs piceous-black, the entire 

 under surface pale piceo-testaceous, without metallic lustre at any 

 part; head densely and strongly, rugosely punctate; antennae (9) 

 rather more than half as long as the body, somewhat stout, the 

 second joint more than half as long as the third, tenth nearly twice 

 as long as wide, the last rapidly pointed but not constricted at apex; 

 prothorax less transverse, barely one-half wider than long, widest 

 at basal two-fifths, where the sides are subangularly prominent, 

 thence rather feebly converging and feebly but evenly arcuate to 

 the apex, very rapidly converging and nearly straight to the basal 

 margin; punctures coarse, deep and close-set, becoming rather 

 gradually less coarse, denser and more rugose though only a little 

 less shining at the sides; scutellum small, concave apically; elytra 

 evidently less than twice as long as wide, perfectly parallel through- 

 out, rapidly and broadly rounded at apex, about a fourth wider 

 than the prothorax, very coarsely, deeply and densely punctate, 

 the punctures everywhere crowded and distorted, still coarse but 

 only slightly separated though rounded basally; prosternum very 

 finely, transversely rugulose, smooth at the middle. Length (9) 

 9.0 mm.; width 3.3 mm. Wisconsin (Bayfield), Wickham. 

 , . lacustre n. sp. 



T. L. Casey, Mem. Col. Ill, March, 1912. 



