320 PROCEEDINGS OF THE ACADEMY OF 



Feronia (Evarthrns) diligenda Chaud. does not belong to this 

 genus, but will be found in Pterosticbus next to P. mancus Lee. 



5. E. VAGANS Lee. Closel3' related to E. Ungelmanni, and differs 

 onl}' in small size, less stout form, and more finely margined 

 prothorax. 



6. E. NONNiTENS, opaque black, elytra (9) entirely without lus- 

 tre, flat, prothorax wider than long, rounded, and rather strongly 

 margined on the sides, which are very shortly sinuate behind, hind 

 angles rectangular, base not narrower than apex ; front transverse 

 impression deep, hind one well marked, basal foveae deep bistriate, 

 with a short external carina; el3tra oval, scarcely wider than the 

 prothorax, humeri broadly rounded, tip scarcely sinuate, stride 

 fine, punctured, marginals not approximate, interspaces broad and 

 flat, third with the usual puncture ; prosternum very deeply sulcate. 

 Lonof, 18 mm. 



One specimen. Red River, Lonisiana. A very distinct species 

 bj^ the less convex form, and extremely dull color. 



