ART. 18 NEW :N^0BTH AMERICAN" WEEVILS CHITTENDEK 13 



Type locality.— lowsi City, Iowa, April 23, 1895 (H. F. Wickham). 



Other localities. — Elliott, Iowa (H. F, Wickham) ; Ames, Iowa 

 (D. Stoner) ; Onaga, Kans.; Mountain Grove, Mo. (J. L. Horsfall) ; 

 Carlisle, Ark. (Stromberg collection) ; New York City, N. Y. (C. 

 H. Roberts) ; Riverdale, Md. (Mrs. D. H. Blake) ; Washington,©. C. 

 (F. H. Chittenden) ; Rosslyn, Va. (F. H. Chittenden) ; Delchamps, 

 Ala.; Rosedale, Miss. (H. L. Sutherland) ; Baton Rouge, La, (T. H. 

 Jones). 



Type.— Female, Cat. No. 29021, U.S.N.M. Type, allotype and 

 eight paratypes. Paratypes also in collection of Illinois State Nat- 

 ural History Survey, Canadian National Collection, University of 

 Kansas, and in the private collections of F. S. Carr, Warren Knaus, 

 and H. P. Loding. 



Mrs. D. H. Blake observed the beetle ovipositing on Bidens species 

 at Riverdale, Md. 



This species differs from scroMcollis Boheman, with which it has 

 been mixed in collections, in the relatively more slender rostrum of 

 the male, noticeably finer pronotal punctation and the three lines of 

 hairs at the apex, unfortunately likely to be worn off. The lateral 

 elytral vittae are also usually and normally pronounced. The inner 

 margin of the anterior tibiae are strongly serrulate, but not, or very 

 feebly so, in scroMcollis Boheman.- The male rostrum, in many 

 specimens, is remarkably short and thick. The rostral carina is 

 sometimes wanting as is also the prothoracic median line. In some 

 examples there is also an interantennal fovea. In the series studied 

 the prothoracic vestiture does not extend in divergent pale lines each 

 side of the disk as in well-marked scroMcollis Boheman. Fresh speci- 

 mens show some reddish pollinose coating. 



The shape of the rostrum varies moderately in the female, one 

 being longer than the pronotum, but in the male it is quite variable 

 from gently arcuate to a blunt form resembling TnuscuJus Say male 

 in miniature. The punctation of the male rostrum is very similar 

 in the two species. 



LIXUS PLANICOLLIS, new species 



Elongate subcylindrical, rather feebly depressed, a little less than 

 four times as long as wide; black with plumbeous effect; vestiture 

 fine gray, very short except at sides of prothorax and on legs; no 

 lateral vittae, antennae and tarsi red. Head rather indistinctly 

 punctate, fovea distinct. Rostrum in the male nearly one-fourth 

 shorter than the prothorax, not quite three times so long as wide, 

 nearly cylindrical, moderately arcuate, not distinctly carinate, cov- 



'^ This character is found in some unrelated species, notably in rubeUus Randall, 

 laramiensis Casoy, and in some specimens of terminalia LeConte. 



