STUDIES IN THE AMERICAN BUPRESTID^ I45 



usual, more cupreous and greenish beneath; head nearly as in divari- 

 cata but with the eyes relatively a little larger and less widely separated; 

 prothorax similar but with the sides anteriorly more convergent and 

 nearly straight, posteriorly much less sinuate, the sculpture more even 

 and with the post-median impressions much more feeble; elytra nearly 

 as in divaricata throughout but vidth the prolongation, though similarly 

 abrupt, still shorter, the parallel part nearly twice as wide as long; 

 punctuation distinct and clear-cut but as usual coarse and confluent 

 laterally, the striae less coarse though very distinct to beyond the median 

 line; under surface and sexual characters similar, except that the two 

 ridges of the fifth ventral are shorter, more apical and very closely 

 approximate, separated only by a narrow groove, — a very variable fea- 

 ture however. Length (9) 17.0 mm.; width 5.8 mm. New York 

 (Buffalo) parumpunctata Mels. 



14 — Form rather stout and convex, rough in sculpture, moderately shining, 

 largely eeneo-cupreous above with many small green clouds in the de- 

 pressed areas of the elytra, the entire frontal margins and labrum also 

 bright green; under surface cupreous and bright green, the legs green 

 with feeble cupreous reflection; head very coarsely rugose, more finely 

 punctato-rugose anteriorly, the eyes only moderately convex and not 

 prominent; prothorax nearly as in divaricata but less closely sculptured 

 throughout, obliquely though moderately biimpressed behind the mid- 

 dle; elytra but flttle wider than the prothorax, almost as in divaricata 

 in outline and in the broad, obtuse and rather abruptly formed pro- 

 longation, but differing in its fine and finely punctate striation which 

 is not visible much beyond the median line, the black callous spots 

 numerous and strongly elevated, the depressed areolae large, confused, 

 with the close punctures coarse but smaller than the others; under 

 surface rugose, nearly smooth and impressed along the axial line as 

 usual but not obviously less rugose along the middle of the abdomen; 

 median abdominal tooth ( $ ) rather long and slender. Length ( $ ) 

 18.2 mm.; width 6.2 mm. Ohio aurichalcea Mels. 



Form somewhat similar but smaller and with relatively smaller head and 

 prothorax, darker and more uniform seneo-cupreous above and but 

 moderately shining, cupreous with some green glints beneath ; head less 

 coarsely, densely punctato-rugose, with a better defined and depressed, 

 more finely punctate central spot, which is viridi-seneous as well as the 

 labrum and the median apical parts of the front; eyes moderately large 

 and more prominent; prothorax three- fourths wider than long, the 

 sides subparallel, very broadly arcuate, gradually moderately converg- 

 ing anteriorly and becoming sinuate in only basal third, the surface 

 less coarsely rugose, though closely punctured laterally and similarly 

 unimpressed along the middle except very feebly anteriorly, the basal 

 puncture small and deep, the oblique impressions diffuse and moder- 

 ate; elytra evidently wider than the prothorax, similar in outline but 

 with the obtuse prolongation narrower and relatively a little longer, 

 though with the parallel part not longer than wide, similarly subabruptly 

 formed; surface more uniform and less rugose, the fine and finely punc- 



