STUDIES IN THE AMERICAN BUPRESTID^ 167 



tral usually being of similar nature in both sexes, and not medially 

 dentate in either, but it is broader in the male in the majority of species, 

 and the latter sex generally has the sterna more closely punctate and 

 conspicuously pubescent. The known species may be outlined as 

 follows : — 



Abdominal apex deeply sinuato-emarginate in both sexes 2 



Abdominal apex deeply sinuate in the male, very feebly so in the female ... 4 



Abdominal apex rounded 5 



2 — Elytral apices very slender, evidently prolonged, the tips more or less 

 sinuate and bidenticulate. Form narrowly oblong, more or less in- 

 flated posteriorly, obscure bronze above, with the elytra strongly and 

 conspicuously cupreous at apex, the under surface cupreous, the legs 

 bronzed with greenish-blue tarsi; head closely punctate, with large 

 callous spaces medially toward base, the epistoma and labrum blue 

 or green, the antennas bluish; prothorax three-fiiths wider than long, 

 broadly rounded at the sides, gradually narrowed anteriorly, the apex 

 subtruncate and evidently bisinuate; surface coarsely, closely punc- 

 tured and rugose, with the smooth median line entire; scutellum cu- 

 preous, more or less impressed medially; elytra at base but little wider 

 than the prothorax, though notably so behind the middle, the sides 

 rounding and rapidly converging behind, becoming sinuate at the short 

 and slender, somewhat divaricate apices; surface with impressed and 

 closely punctured striae, the intervals feebly convex, closely punctured 

 and with irregular and black, smooth but not evidently more elevated 

 spots; terminal notch of the abdomen (9) but little wider than deep, 

 the sterna sparsely punctate and subglabrous, the notch ( c?) twice as 

 wide but of the same depth, the sterna finely, closely punctate and 

 with long conspicuous pubescence, the prosternum not so closely 

 punctured as the metasternum, and broadly, feebly convex, though not 

 by any means so strongly so as in the female. Length 11. 4-15. 2 mm.; 

 width 4.0-5.7 mm. Canada, New York and (?) Texas. 



erecta Lap. -Gory 



Elytral apices not so slender, briefly prolonged, the tips bidentate. Body 

 brassy-brown above; head slightly impressed, rugosely punctured; eyes 

 yellowish-brown; prothorax equal, closely, rugosely punctured, the 

 medial space glossy black, each side of which at the anterior margin 

 there is a small black polished spot and a similar one at each side at the 

 posterior margin; posterior angles right; scutellum transverse, concave; 

 elytra punctato-striate with the first four striae entire, the intervals 

 rugosely punctured and with rows of oblong-quadrate glossy [black] 

 spots, the lateral submargins transversely rugulose and with irregular 

 elevated glossy spots and short lines; legs and under surface dull cu- 

 preous, rugosely punctured, the pectus [metasternum ?1 slightly canalic- 

 ulate. Length 14.0 mm.; width 5.5 mm. Virginia. [ = Dicerca ferrea 

 Mels.l ferrea Mels 



