164 PROCEEDINGS OF THE NATIONAL. MUSEUM vol. 65 



angles, which are slightly diverging and acute ; anterior margin with 

 a broadly rounded median lobe; base nearly truncate to middle of 

 elytron, with a broadly rounded median lobe ; when viewed laterally 

 the lateral margin runs obliquely downward and disappears ante- 

 riorly; surface with three large basal impressions extending to the 

 middle, the median one is rather broader than the others, densely and 

 coarsely punctate, the punctures deep, rather irregularly placed and 

 becoming more widely separated in the impressions; intervals nearly 

 smooth except in the impressions where they are densely, finely gran- 

 ulose. Scutellum about two times as wide as long; sides obliquely 

 narrowed anteriorly; posterior margin broadly rounded; surface 

 finely and densely granulose. Elytra slightly wider than pronotum 

 at base; sides strongly angulated a little behind the humeral angles, 

 nearly j^arallel to apical third, w^iere they are broadly rounded, then 

 strongly acuminate to the tips, which are acute, with a tooth at the 

 apex of each elytron, and the lateral margins finely and irregularly 

 denticulate; humeral angles nearly rectangular, surface broadly im- 

 pressed at base, there is a quadrangular spot occupying the scutellar 

 region, and a second square spot along lateral margin at middle of 

 the elytron, but not extending to the- suture, of a brownish color, more 

 shining, and slightly more elevated than the rest of the elytra, the 

 humeral callosity and the margin near the base are also of the same 

 brownish color, the surface is also punctate-striate, the punctures 

 coarse at the base but becoming finer toward the apex; intervals 

 slightly costiform, with a few coarse, irregularly placed punctures, 

 and becoming densely granulose and somewhat rugose posteriorly. 

 Abdomen beneath strongly convex, rather densely punctate, the 

 punctures large, well separated, and becoming finer toward the apex, 

 and from each puncture arises a rather long, recumbent hair ; inter- 

 vals finely and densely granulose; last segment strongly attenuate, 

 and rather deeply arcuately emarginate at apex. Prosternum very 

 coarsely punctate, the punctures deep and well separated; anterior 

 margin truncate and declivous; prosternal process nearly flat, sides 

 parallel to behind coxae, then obliquely attenuate to the apex, which 

 is broadly rounded. Posterior coxae with the surface strongly con- 

 cave, sparsely punctate, the punctures very coarse internally but 

 becoming finer in the concavities. 



Length, 10.5 mm. ; width, 3.5 mm. 



This species was described from Jamaica by Waterhouse. 



Through the kindness of the British INIuseum I have been able to 

 examine a single specimen from their collection labeled "Jamaica " 

 and from which the above description was made. Superficially this 

 species resembles specimens of the genus Agrilus, but the lateral 

 branches of the mesosternum are distinct and the species is remark- 

 able in having three deep basal depressions on the pronotum. 



