STUDIES IN THE AMERICAN BUPRESTID^ 89 



in conjluenta, sometimes more deeply sinuate in the male, but these 

 secondary characters are very inconstant and liable to mislead, so that 

 they are generally not referred to in the descriptions. The integu- 

 ments are always virtually glabrous, shining and frequently metallic 

 in coloration, though sometimes deep black, some species being among 

 the more lugubrious of this highly metallic family; some are maculate 

 with flavate in diverse patterns and others unicolorous. 



The species and subspecies represented in my collection, or assign- 

 able with some degree of certainty from published descriptions, may 

 be identified by the following tabular statement : — 



Male with the anterior tibiae deeply sinuate within beyond the middle and 

 with a strong reflexed subapical spine internally; pronotum never 

 impressed along the median line 2 



Male with the anterior tibiae unmodified; pronotum frequently impressed 

 along the middle 29 



2 — Presternum flattened, sometimes feebly impressed along the median 

 line, the first ventral segment always sulcate medially 3 



Prosternum broadly, evenly convex, the first ventral never more than feebly 

 impressed along the middle; elytra with finely comminuted macula- 

 tion, the striae and intervals subuniform throughout the width 28 



3 — Elytra each with two brick-red vittae, sometimes more or less disinte- 

 grated, the inner much abbreviated. Body elongate-fusiform, con- 

 vex, black, generally with feebly aeneous or cupreous reflection, less 

 marked on the elytra; head about as wide as the thoracic apex, rather 

 finely, densely punctate, less densely and more coarsely anteriorly and 

 in a posterior interocular tumescent transverse area, having (c?) an 

 anterior arcuate and irregular and a post-median transverse pale 

 fascia, or ( 9 ) usually two or four small apical and two juxta-ocular 

 spots; antennae slender; prothorax nearly three-fourths wider than long, 

 strongly trapezoidal, the sides nearly straight, sometimes slightly in- 

 flated basally, generally linearly pale at the lateral and apical margins 

 toward the angles, rather coarsely, subevenly and not very densely 

 punctate, with a slight impression before the scutellum; elytra but little 

 wider than the prothorax, three-fourths longer than wide, the sides 

 gradually rounding and oblique in posterior two-fifths, the apices trans- 

 versely truncate with spiculate inner and outer angles, the truncature 

 also feebly and irregularly microspiculose; striae moderate, finely punc- 

 tate, the intervals but feebly convex, more coarsely punctate, almost uni- 

 form throughout, the fourth and especially the sixth notably broader 

 basally and more punctate; under surface shining, distinctly punctate, 

 the last ventral with a smafl red spot near each anterior angle. Length 

 1 2. 2-1 7.0 mm.; width 4.8-6.7 mm. North Carolina, Florida and 

 Louisiana lineata Fabr. 



Elytra each with four flavate spots arranged longitudinally and subequally 



