I lO CASEY 



at tip, with the outer angle strongly dentiform, the sutural acutely prom- 

 inent 40 



Elytral apices much narrower, feebly sinuato-truncate, with the outer angle 

 obtuse, sometimes almost rounded, the sutural acute though seldom 

 very noticeably prominent 42 



40 — Prothorax but little narrower than the elytra. Body elongate, slightly 

 convex, shining, green, sometimes vnth decided cupreolate reflection, 

 except the abdomen and median parts of the under surface anteriorly, 

 which are brightly polished and cupreous; head rather small, densely, 

 subconfluently punctate and somewhat rugulose, the eyes not very 

 prominent; antennae black with metallic lustre; prothorax two-thirds 

 or more wider than long, the sides strongly converging anteriorly, more 

 rounded basally; surface strongly and unevenly but rather sparsely 

 punctate, confluently so in places laterally, broadly and very feebly 

 impressed along the middle, the ante-scutellar puncture very small or 

 obsolete; elytra rather evidently more than twice as long as wide, par- 

 allel, the sides gradually rounding in apical third to the apices, coarsely 

 furrowed, the furrows confusedly crenate; intervals narrow, remotely 

 punctulate, generally wholly immaculate but occasionally having each 

 a small spot near apical third and a minute subapical dot; abdomen 

 very minutely, sparsely punctate, less finely, closely so laterally. Length 

 16.0-19.2 mm.; vndth 5.2-6.3 mm. California and Oregon, — abun- 

 dant crenata n. sp. (Mots., i. litt.?) 



A — Form and coloration throughout as in crenata, the head similar but 

 relatively a little larger; prothorax differing very obviously, being 

 smaller and less convex, shorter and more transverse, the sides less 

 inflated basally, the central portions bluish and the sublateral rounded 

 impressions notably more posterior in position; elytra nearly similar 

 throughout but more distinctly wider than the prothorax; under sur- 

 face similarly minutely and remotely punctulate, with broadly convex 

 prosternum and transversely truncate fifth ventral. Length 16.5 

 mm.; width 5.9 mm. California (Yreka) seditiosa n. subsp. 



Prothorax much narrower than the elytra 41 



41 — Size large, notably depressed, viridi-cupreous, in great part bright cu- 

 preous beneath, the external marginal line of the elytra finely cupreous; 

 head small, strongly, coalescently punctato-rugose, the eyes large but not 

 prominent; antennie black, metallic basally; prothorax two-thirds wider 

 than long, the sides arcuate, converging anteriorly, the apex much 

 narrower than the base, broadly sinuate; disk a little wider just behind 

 the middle than at base, broadly and feebly impressed medially except 

 toward apex, the subbasal foveola very feeble, the sublateral rounded 

 impression behind the middle strong; punctures deep and rather coarse, 

 moderately close, coarser, and crowded laterally ; basal angles right ; elytra 

 a little more than twice as long as wide, almost a fourth wider than the 

 protliorax, sculptured as in the preceding, not maculate; under surface 

 almost similar, the first segment feebly flattened along the middle; 

 legs slender, the basal joint of the hind tarsi not quite as long as the 



