Art. 18 ISTEW NORTH AMERICAN WEEVILS CHITTENDEN 19 



Femiale. — Eostrum as above described. First and second ventral 

 segments feebly convex at the middle. 



Male. — Kostrum a little shorter and thicker than in the female. 



Length, 6.5-8 mm. ; width 1.9-2.2 mm. 



Type locality.— Coney Island, N. Y., June 18, 1887 (F. H. 

 Chittenden). 



Other localities. — New York City and vicinity (Wm. Jiilich) ; 

 Elizabeth, N. J. (H. F. Wickham) ; New Jersey. 



Type.— Female, Cat. No. 29036, U.S.N.M. Type, allotype, and 

 three paratypes. 



The type is somewhat different from the paratypes. The rostrum 

 is polished black and evidently for this reason appears more slender. 

 The pronotum is abraded, thus showing the sculpture to advantage. 

 Through the longer vestiture of the flanks of the prothorax, however, 

 the surface is shown covered with fine punctures, sparsely set, 

 minutely punctulate in the interspaces. 



LIXUS CAPITATUS, new species 



Slender, oblong, nearly four times as long as wide, very dark 

 plumbeous with slight reddish tint, strongly convex on dorsum, 

 lower surface somewhat flat. Rostrum nearly as long as prothorax. 

 very thick, subcylindrical, not carinate but bearing a distinct mediei) 

 groove below middle two-fifths, interocular fovea small, distinct; 

 surface moderately and irregularly punctate, in finely twisting 

 grooves. Head large and prominent, punctulate. Antennae red; 

 first funicular joint wide, second narrow and slender, subequal to 

 third and fourth combined. Prothorax about as long as wide, dis- 

 tinctly wider at base than the elytra; surface rather coarsely but 

 not variolately nor deeply punctate, punctures widely set with inter- 

 vals between finely punctulate; rather deeply concave in basal half 

 with a deep linear impression; vestiture composed of fine hairy 

 squamules at sides. Elytra, long, about three and one-half times as 

 long as wide, no median impression at base, apices slightly divergent; 

 surface deeply, moderately finely punctate, punctures oblong with 

 tendenc}^ to form transversely parallel rows at base, first impressed 

 at apex ; vestiture finely squamulose. Legs long ; tarsi pale. Vesti- 

 ture of ventral surface moderately long, dark gray, not nucleated. 



First and second ventral segments in the male longitudinally im- 

 pressed at middle. 



Length, 8 mm. ; width, 2.5 mm. 



Type locality.— Chev J Chase, Md., June 14, 1905 (F. H. 

 Chittendon). Unique. 



Type.— Male, Cat. No. 28799, U.S.N.M. 



Taken from the stem of Ambrosia triflda Linnaeus with L. scrohi- 

 collis Boheman. 



