82 CASEY 



thorax and with the sutural angles at apex not in the least prolonged or 

 dentiform, the apices very narrowly oblique; under surface nearly 

 similar, except that the densely punctate areas are much less pubescent 

 and the angular emargination of the last ventral in the male narrower, 

 acute, with its sides straight and not of a bluntly ogival form as in that 

 species. Length (c?) 22.5 mm.; width 7.0 mm. Southern Atlantic 

 States iridescens n . sp. 



10 — Head well developed, the eyes convex and rather prominent 11 



Head notably small, the eyes continuing its generally rounded outline; body 

 smaller in size than in any other species 13 



II — Depressions of the elytra strongly, closely punctured and also rugose; 

 elytra narrowing posteriorly from slightly behind the middle, with the 

 sides evenly and very evidently arcuate to the moderately obtuse 

 tips. Body elongate-suboval, more convex than usual, coppery in 

 lustre, the elevations blackish, the under surface shining, cupreous; 

 head densely punctate, also with some smooth rugae on its two large 

 convexities, the latter separated by a broad and moderately deep 

 groove; prothorax three-fifths wider than long, the sides parallel and 

 somewhat sinuate, obtusely, subangularly rounded before the middle 

 and thence strongly converging to the apex; sculpture nearly as in 

 georgiana but vidth the sublateral impression behind the middle much 

 shallower and more diffuse, the sublateral basal callus feeble ; elytra about 

 twice as long as wide, notably convex, the sides feebly serrulate pos- 

 teriorly, the apices rounded; under surface in great part finely, rather 

 closely but not densely punctate, the pubescence inconspicuous, pol- 

 ished and coarsely, sparsely punctate medially as usual. Length ( 9 ) 

 26.0 mm. ; width 9.0 mm. Pennsylvania forlis Lee. 



Depressions of the elytra rather more finely, densely punctate, not so rugose; 

 elytra narrowing posteriorly in about apical third, with the oblique sides 

 nearly straight toward tip, the apices transverse suturally 12 



12 — Body rather broad, moderately convex, dull cupreous, the raised parts 

 black, the under surface brilliant sneo-cupreous; head nearly as in 

 fortis; prothorax relatively smaller, one-half wider than long, nearly 

 similar in form and sculpture, except that the sides are less prominently 

 rounded before the middle, sometimes very evenly rounded from behind 

 the middle to the apex ; elytra evidently less than twice as long as wide, 

 nearly as in fortis but less convex, the apex almost similarly obtuse; 

 under surface nearly similar, except that the fine punctures laterally 

 are denser, Length (c?) 23.0-25.0 mm.; width 8.0-8.8 mm. Can- 

 ada (Ontario) laurentican. sp. 



Body broad, moderately convex, the depressions of the upper surface bright 

 cupreous-red, the raised parts black; head and prothorax relatively 

 smaller than in the preceding, the former nearly similar, the antennae 

 notably thick, the subapical joints ( $) but little longer than wide; pro- 

 thorax smaller, shorter and more transverse, three-fifths wider than long, 

 nearly as in the two preceding, except that the parallel sides are apt to be 

 somewhat bisinuate behind the apical converging and rounding parts 



