4 PROCEEDIlSrGS OF THE NATIOISrAL MUSEUM Vol 77 



teriorly, gently arcuate in basal half, more strongly so towards apex ; 

 surface depressed, rather strongly impressed at middle fourth; 

 sculpture of disk as well as of sides, extremely rough and irregular, 

 punctures large, subvariolate, irregular and sparse, finely punctulate 

 at apex; lateral vittae feebly indicated. Elytra less than twice as 

 long as wide, a little wider than prothorax at base; humeral angles 

 obtusely rounded; sides subparallel to apical one-third; extreme 

 apices nearly closed. Third interval strongly elevated at base, in- 

 closing a comparatively long and deep impression ; intervals minutely 

 punctulate; strial punctures small, more or less rounded, closely 

 placed in regular rows; vestiture sparse, composed of short, gray, 

 hair-like scales, moderately mottled, denser at apex and without 

 definite lateral vittae. Ventral segments sparsely clothed with very 

 long, fine gray hairs, not areolated. First and second segments nar- 

 rowly impressed. Legs with short gray hairs; anterior femora 

 strongly clavate. 



Length, 10-11.5 mm.; width, 3.4-4 mm. 



Type locality. — Garden City, Kans., September 23, 1913 (C. H. 

 Popenoe). 



Other locality. — Douglass County, Kans., 900 feet elevation (F. H. 

 Snow). 



ry/>e.— Female, Cat. No. 29023, U.S.N.M. Paratype in the Illi- 

 nois State Natural History Survey Collection, Urbana, 111. 



This species bears little resemblance to any other than mMSculus 

 Say, being of similar size. It is a comparatively robust form and 

 unusually depressed. The distinct carina, rough and coarse pronotal 

 sculpture, with medium impression, and deeply concave postscutellar 

 impression are among the distinctive characteristics. The paratype 

 is less robust, with much shorter frontal carina, shorter pronotal 

 impression, denser vestiture and smaller strial elytral punctures, and 

 indistinctly subvariolate pronotal punctures. 



LIXUS COLORADENSIS, new species 



Ek)ngate cylindrical, nearly four times as long as wide; black, 

 coated with dense plumbeous vestiture, composed of minute yellowish 

 gray squamules and longer hairs, mixed with reddish and yellowish, 

 especially on prothorax and head. Kostrum cylindrical, as long as 

 prothorax, distinctly arcuate, a little wider at base, very gradually 

 narrowing to apex, not carinate, finely densely punctate, more 

 coarsely between the eyes, punctation nearly concealed by long red- 

 dish yellow hairs. Eyes imperfect reniform, widest near the middle. 

 Interocular fovea small. Antennae inserted less than three-fifths 

 from the base; second funicular joint subequal to first but shorter 

 than third and fourth together. Prothorax a little wider than long, 



