STUDIES IN THE AMERICAN BUPRESTID.« I35 



convex surface more even than usual, with impressed punctured 

 striae almost even and visible nearly to the sides, the densely punc- 

 tured spots small and not impressed, the black spots feebly elevated, 

 generally small but occasionally large and oblong, the punctuation 

 not very rugose though dense, except near the suture; under surface 

 ( 9 ) channeled along the axial Hne as usual, the apical sinus with a 

 long slender aciculate tooth. Length ( 9 ) 16.0 mm. ; width 5.8 mm. 

 New York (Buffalo) regularis n. subsp. 



Oblique sides of the elytra toward tip becoming more or less evidently 

 sinuate, the tips thus appearing as though very slightly prolonged 10 



10 — Elytra not noticeably inflated subposteriorly, relatively more elongate. 1 1 



Elytra more or less conspicuously inflated, being decidedly wider behind 

 the middle than at base 12 



II — Form elongate, rather convex, moderately shining, obscure aeneous, 

 feebly cuprascent beneath; head coarsely, densely punctate and rugu- 

 lose, the central callus obvious; prothorax nearly two-thirds wider 

 than long, the sides rounding and converging anteriorly, parallel and 

 broadly, feebly sinuate from before the middle to the base; surface 

 subevenly convex, coarsely, densely punctured laterally, with callous 

 spots near the sides medially and others, very variable, in a sublateral 

 line especially visible before the middle and at base; median parts 

 rather finely, sparsely punctate, the anterior punctured area but very 

 feebly impressed, the basal pit evident, sometimes bipunctate; scutel- 

 lum longitudinally sulcate as a rule; elytra but little wider than the 

 prothorax, distinctly more than twice as long as wide, subparallel, the 

 sides gradually rounding and converging in apical two-fifths and 

 gradually sinuate near the strongly bidenticulate apices, which seem to 

 be slightly prolonged; surface coarsely, very rugosely and confluently 

 punctate laterally, the punctured series broken but evident, the raised 

 spaces very irregular and the punctate areolae not well defined; under 

 surface as usual, the median tooth in the apical sinus of the fifth ven- 

 tral (9) long and acutely aciculate. Length (?) 17. 5-18. 2 mm.; 

 width 5.7-6.1 mm. Indiana and lUinois (northern) .... levettei n. sp 



Form narrower and still more convex, glittering and bright aeneous, varied 

 with small subcupreous patches, the raised parts greenish-black; under 

 surface cupreous, dull laterally due to the coarse confluent sculpture, 

 polished and viridiajneous medially; head very coarsely, confluently 

 punctato-rugose, with small callous spots; antennae a little longer than 

 the head, bright cupreo-asneous; prothorax shorter, three-fourths wider 

 than long, the sides broadly arcuate and gradually moderately converg- 

 ing anteriorly, becoming subparallel and feebly sinuate only behind 

 the middle; surface very coarsely, densely punctate and with numerous 

 very irregular ramifying callous spots laterally, sparsely and more 

 finely punctate medially and nearly as in levettei; elytra more than 

 twice as long as wide, barely at all wider than the prothorax, the sides 

 very gradually rounding and converging from only slightly behind the 

 middle, more feebly and broadly sinuate toward the strongly bisjncu- 



