STUDIES IN THE AMERICAN BUPRESTID^ 53 



terminal sensory fossa; labrum well developed, sinuato-truncate; 

 epistoma unusually deeply and not broadly emarginate; body small, 

 slender; eyes with the inner margins distinctly converging upward as 

 usual; prothorax feebly trapezoidal with nearly straight sides, trisul- 

 cate; elytra without trace of serrulation at the sides, sinuate and bi- 

 denticulate at the apices, obscurely and imperfectly striate and with 

 uneven and undefined subimpressed areolae; prosternum not sulcate; 

 first ventral convex, the first suture fine but distinct, straight; legs 

 long and very slender. Atlantic regions. [Type Buprestis elongata 

 Lap.-Gory] Cinyra 



16 — Antennae inserted in small exposed foramina, not within a cavity and 

 without superior ridge though having a small polished and sculpture- 

 less spot adjoining each above and becoming more prominent along the 

 upper margin of the foramina, their outer joints strongly serrate and 

 triangular, with their lower margins very oblique and more converging 

 basally, having dense asperate sensitive pores beneath anteriorly and 

 a large intero-apical sensory fossa, the last joint narrow and elongate- 

 oval; eyes widely separated, their inner margins sUghtly converging 

 upward; epistomal margin narrowly, deeply sinuate medially; labrum 

 as in Cypriacis, coriaceous but having basally two large dense and 

 metallic areas which are very narrowly separated medially; maxillary 

 palpi very slender; mentum sinuate at apex, corneous and densely 

 cribrate ; pronotum uneven, with a short compressed and prominent ridge 

 at each side behind the middle of the lateral margin and a small deep 

 cavity before the middle of the base; scutellum wholly obsolete; elytra 

 oblong, wider than the prothorax, cribrate, without trace of striae and 

 very uneven, scarcely at all serrulate at the sides, the tips obtuse, round- 

 ed; prosternum densely sculptured throughout, not impressed,^ the 

 abruptly narrowed apex not attaining the metasternum, the side pieces 

 of the mesosternum separated, however, by a deep cleft; basal segment 

 of the abdomen apparently free or nearly so, the first suture similar 

 to the others and rectiUnear; legs slender, the basal joint of the hind 

 tarsi greatly elongated; hind coxae strongly oblique as usual. Pacific 

 coast to Gulf of Mexico. [Type T. hlondeli Mars.] Trachykele 



The usual position of Dicerca, interpolated between Hippomelas and 

 Buprestis, dates apparently from the work of Lacordaire, who drew 

 attention to the similarity in antennal insertion and form of the supra- 

 antennal ridges to those of Psiloptera; but the marked dissimilarity 

 of the antennae themselves seems to the writer a far more important 

 consideration and necessitates the removal of Dicerca and Poecilonota 

 from the vicinity of Hippomelas, Psiloptera and Buprestis, to a closer 

 association with Chrysohothris. The European Eurythyrea Sol., and 

 Lampra Spin., are introduced above for comparison and greater com- 

 pleteness; they are distinguished by the prefixed asterisk. There can 

 be but little question that Lampra ought to be considered a genus dis- 



