158 CASEY 



Form nearly similar, aeneo-cinereous in color, the head, pronotum and elytra 

 generally more or less suflfused with green, the prothorax "more than 

 twice as wide as long," the sides dilated and rounded, sinuate poste- 

 riorly, roughly punctate, unequal, with four shining elevated vittae, the 

 external subinterrupted, the dorsal sulcus "interrupted" by a "small" 

 shining callus; elytra punctate, the internal striae punctate, the alter- 

 nate intervals with oblong shining elevated spaces, at apex slightly 

 prolonged, the tips entire; prosternum broadly sulcate, subglabrous; 

 male with the middle tibiae unmodified, the fifth ventral truncato- 

 emarginate at tip; female with the fifth ventral rounded and entire at 

 tip. Length 15.0 mm. New York (near the city). [ = hilaris Lee. and 

 nianca Lee. (fide Crotch)] tuberculata Lap. -Gory 



7 — Upper surface cupreous to dark cupreous-brown in color, the elytral 

 apices narrowly acuminate 8 



Upper surface deep black throughout, without trace of metallic lustre, the 

 elytral apices rather broadly obtuse 12 



8 — Sides of the elytra rounding and rapidly converging posteriorly in about 

 apical third 9 



Sides very gradually and broadly rounding and very gradually converging 

 posteriorly from a point only slightly behind the middle 11 



9 — Sides of the prothorax but feebly converging and sinuate basally. Body 

 more elongate, moderately convex, shining beneath, bright cupreous 

 throughout excepting the black elevations; head very unevenly, densely 

 punctate and rugulose, coarsely and longitudinally rugose basally, 

 the eyes rather well developed and prominent; prothorax three-fourths 

 wider than long, the sides broadly and obtusely prominent before the 

 middle, strongly converging anteriorly, becoming very feebly sinuate 

 and moderately convergent toward base; surface densely punctate 

 laterally, the ridges broadly convex and sparsely punctate, the deep 

 included sulcus densely punctate, completely interrupted medially, 

 the sublateral vitta broad, widely interrupted by the deep depression, 

 the submarginal line of very irregular ramifying callus broad and ex- 

 tending throughout the length; elytra but little wider than the prothorax, 

 fully twice as long as wide, the apices slightly prolonged, broadly 

 rounded at the tip, the sides near them distinctly sinuate; surface rather 

 finely, very densely punctate, the coarse serial punctures distinct only 

 near the suture, the elevations elongate, numerous and strongly con- 

 vex, shorter and more ramifying laterally; under surface ( 9 ) punctato- 

 rugose, the prosternum very feebly and broadly concave, coarsely, 

 densely rugose, the fifth ventral moderately acuminate, rounded at tip, 

 the latter with two small deep nicks separated by a quadrate ligula. 

 Length 15.0 mm.; width 5.7 mm. Ontario (Sudbury) . . acerba n. sp. 



Sides of the prothorax more strongly though broadly constricted basally 

 and broadly sinuate, the elytral tips more truncate 10 



10 — Body moderate in size, dark subcupreous-brown to paler cupreous 

 in color, always brighter beneath; head with some very coarse convex 

 rugosities throughout, separated by densely crowded punctures, the 



