98 , GEORGE H. HORN, M. D. 



PELOFHILA. — Anterior tarsus of male broadly dilated; antennae stout, shorter 

 thaa half the length of body, joints 3 — 4 thicker at tip, joints 3 — 11 

 distinctly flattened; scutellar stria obliterated : body robust, JBIethisa- 

 forra. 



NEBEIA, Latr. 

 Humeri of elytra obliterated ,• body either apterous or feebly winged. 



Hind angles of thorax rectangular; color black ingens. 



Hind angles of thorax not rectangular : sides oblique ; color 



livid diversa. 



Humeri of elytra distinct, at least moderately prominent. 

 Sides of el3'tra sub-parallel. 

 Metallic species. 



Sides of thorax oblique, hind angles not rectangular. 

 Color bluish-metallic; dorsal punctured faint or want- 

 ing virescens. 



Sides of thorax strongly sinuate ; angles rectangular. 

 ' Elytra elongate, much longer than twice the width at 

 base, slightly broader behind middle; color black, 



with tinge of green gregaria. 



Elytra broader, sub-parallel; not longer than twice 

 # the width at base. 



Antennae and legs black. 

 Elytra broad, depressed, deeply striate, dorsal punctures 



very distinct metallica. 



Elytra more elongate and convex, striae and punctures 



faint Gebleri. 



Antennse and legs rufous or rufo-piceous. 



Four or five strong punctures on third interval viridis. 



Black species. 

 Sides of thorax oblique not sinuate near the base. 



Third stria with a single puncture obliqua. 



Third stria with at least four punctures suturalis- 



Sides of thorax sinuate, hind angles rectangular. 



Hind angles scarcely rectangular; dorsal punctures 



faint hudsonica. 



Hind angles rectangular; dorsal punctures distinct Sahlbargi. 



Hind angles rectangular; dorsal punctures of third and 

 fifth intervals equally distinct and deep, femora 



rufous bifaria. 



Sides of elytra strongly rounded. 

 Legs black. 



Hind angles of thorax very distinctly rectangular Eathvoni. 



Hind angles scarcely rectangular Mannerheimii. 



Legs pale. 



Hind angles of thorax rectangular Eschscholtzii. 



Hind angles not rectangular, sides of thorax oblique pallipes. 



R. ingens, n. sp. — Black, shining, apterous. Head smooth with two shallow 

 impressions in front, rugose at bottom, and between the eyes two ferruginous 

 spots. Thorax similar in form to metallica, but with the sides less rounded in 

 front; anterior angles obtuse, hind angles rectangular, base feebly emarginate 



