STUDIES IN THE AMERICAN BUPRESTID^ 157 



rounded and entire; male not at hand; Length 14.4 mm.; width 5.0 

 mm. Michigan (at Lake Superior). [=lacustris Lee. (fide Crotch)]. 



lugubris Lee. 

 A — Body nearly as in lugubris but more prolonged and more gradually 

 attenuate posteriorly, the head nearly similar, the prothorax shorter 

 and more transverse, nearly twice as wide as long, almost similar in 

 outline and sculpture but with the two median ridges less elevated, 

 the inclosed sulcus shallower, the central callus prolonged in a fine 

 callous line to the base; elytra with the elongate callous spots more 

 numerous, very irregularly crenulated along their sides by the coarse 

 punctures, which are even more conspicuous than in lugubris but 

 less perforate than in fnorio, the sides posteriorly very gradually 

 converging to the narrow rounded apices but becoming only scarcely 

 visibly sinuate; prosternum (c?) broad, just visibly concave and very 

 densely punctate though scarsely hairy throughout; middle tibiae 

 unmodified, the fifth ventral with a shallow transverse emargination. 

 Length (6^) 15.0 mm.; width 5.25 mm. Michigan (Whitefish Point, 

 Lake Superior) austera n. subsp. 



Form and size nearly as in punctulata, brassy-brown above; head dull 

 cupreous, densely rugulose, slightly indented on the front and with a 

 transverse interrupted polished callous line between the eyes; antennae 

 obtusely serrate, rich cupreous; prothorax transverse, slightly emargi- 

 nate at apex, feebly bisinuate at base, where it is narrower than the 

 base of the elytra, the posterior angles acute, the sides straight near the 

 base, strongly dilated beyond the middle, dull cupreous, densely punc- 

 tured, with four longitudinal polished black lines, the middle two entire, 

 the outer interrupted before the middle or before an oblique fossula 

 and appearing slightly again at base; there is also a narrow polished 

 marginal line from the tip of the hind angles to near the middle of the 

 lateral dilatation; scutellum transverse, black; elytra brassy-brown 

 or black, densely punctate, with series of large remote punctures and 

 many irregular linear black polished elevations; tip short, entire, the 

 legs and under surface cupreous, shining, rugosely punctured, the 

 post-pectus canaliculate. Length 14.0 mm. ; width 6.0 mm. Virginia. 

 [ =consobrina Mels.] dumolini Lap. -Gory 



Form nearly similar, asneous; prothorax twice as wide as long, strongly 

 dilated at the sides, which are rounded anteriorly, sinuate posteriorly, 

 roughly punctate, unequal, with a short carina at the posterior angles, 

 callous spots at apex and base and two nearly smooth costos, the dorsal 

 sulcus broad and deep, with a small central callus; elytra punctured, 

 the internal stris coarsely punctate, the alternate intervals with ele- 

 vated shining spaces, many of which are connected by elevated trans- 

 verse rugae, the tips briefly prolonged, rounded; under surface bright 

 copper}', the prosternum flat, densely punctured, the metasternum 

 feebly sulcate, and, like the unimpressed first ventral, sparsely punctate; 

 male with the last ventral truncato-emarginate at apex, the middle 

 tibiae simple; female with the fifth ventral rounded at tip. Length 

 13. 0-16.0 mm. Maine and New York. [=/w&erc2</a/a Lee. nee Lap.- 

 Gory] distinguenda Lap.-Gory 



