NEW SPECIES OF NORTH AMERICAN COLEOPTERA OF 

 THE FAMILY SCARAB.EID.E. 



By Martin L. Linell, 



Aid, Dcparhneut of Inseois. 



In rearranging the IT. S. National Museum collection of North Ameri- 

 can Coleoptera of the family Scarabfeida?, a certain number of forms 

 were met with among the recent accessions that evidently are unde- 

 siribed and should be put on record as additions to our fauna. It was 

 found necessary to erect a new genus for some small species occurring 

 in the Southwest. A few notes have also been added o!i previously 

 described species. 



PINOTUS COLONICUS, Say. 



A species widely distributed in Mexico, which differs from P. oaroli- 

 nufi, Liun;eus, by male having two tubercles on the front, one above the 

 other, should be added to our Texan fauna. A specimen is in the 

 National Museum collection, taken by Prof. C. H. Tyler Townsend in 

 Brownsville, Texas, September 5, 1895. 



PSAMMODIUS SCHWARZI, new species. 



Oblong, parallel, convex, shining reddish brown; vertex, disk of 

 thorax, and sometimes sutural region of elytra, pioeous. Head mod- 

 erately coarsely asperate; vertex smootli. Clypeus broadly and dee])]y 

 emarginate, without teeth; sides broadly rounded; genje obtuse, 

 slightly prominent. Thorax wider thiin long, not narrowed in front; 

 sides arcuate, the margin indistinctly crenulate; anterior angles sliglitly 

 prominentj obtuse; posterior rounded; base slightly arcuate, with very 

 deep marginal line; disk convex, sparsely and finely punctate, with an 

 irregular group of coarse punctures (from 8 to 15) each side, and a 

 snnill round fovea near the front angles. Elytra as wide at base as the 

 tlnu'ax; humeri obtuse; sides nearly ])ara]lel; disk deeply striate, striae 

 distinctly, somewhat crenately punctured; intervals convex, smooth. 

 Mesosternum opaque, densely punctulate, carinate between the coxa\ 

 JMetasternura smooth, polished, flattened and longitudinally impressed 



Proceedings of tlic rnittil States National Sluseiirn, Vol. XVIII— No. 1000. 



Proc. N. M. 95 4G 721 



