166 AMERICAN COLEOPTERA. 



89. A. (lecolorat'Uin n. sp.— Form moderate, black: legs pale; femora and 

 tibiae more or less diffiisedly anuulate with a darker shade; tarsi dusky ; anteuuse 

 paler toward the base; pubescence well marked. Beak stout, as long or some- 

 times longer than the prothorax, just visibly dilated over the insertion of the 

 antennae and slightly narrower toward the tip; surface moderately punctate, 

 sparsely pubescent in both sexes. First joint of antennse not much longer than 

 the second, obviously shorter than the two following, second about reaching the 

 eye, outer joints transverse. Front but little wider than the tip of the beak, 

 with two lines of punctures; eyes not prominent. Prothorax about as long as 

 widef about one-half wider at base than at the apex ; sides feebly arcuate and 

 subparallel in basal half, more strongly rounded in front and moderately con- 

 tracted before the apex ; basal margin slightly expanded ; surface evenly, moder- 

 ately strongly and closely punctate; basal fovea small. Elytra about one-half 

 longer than wide; humeri moderate; sides feebly diverging to the middle: inter- 

 vals flat or slightly convex, not much wider than the strife. Punctuation beneath 

 moderate; legs slender. Length 1.5-1.8 mm.; .06-. 07 inch. (PI. V, fig. 13). 



Hab. — Massachusetts, District of Columbia, Virginia, North 

 Carolina, Iowa, Arizona. 



The sexual differences are very feeble, the beak averaging a trifle 

 longer in the female, and the sutural angles being slightly less 

 rounded in the same sex. In the Arizona examples the first joint 

 of the autenme is a little longer than described, being quite equal 

 to the next two. Mr. Wickham has found the species in some 

 abundance on Desinodiam at Iowa City. 



90. A. einaciipes n. sp. Black; legs entirely yellow, more raiely with 

 the femora piceous; liody more obese than the preceding; pubescence fine, sparse, 

 inconspicuous. Beak very short and stout, subequal ro the prothorax, evidently 

 dilated at or just behind the middle, rather coarsely, irregularly punctate. 

 Antennte either pale throughout, or almost entirely piceous, proportioned as in 

 the preceding species. Front about as before ; eyes a trifle more prominent. 

 Prothorax evidently smaller than in decolorafum, wider than long, very strongly 

 con.stricted before the apex : surface coarsely, closely, but unevenly punctate, 

 there being usually a small supero-latereval smooth space behind the middle. 

 Elytra broader, with more prominent humeri, otherwise about as before. Abdo- 

 men rather coarsely, closely punctate; legs thin. Length 1.4-1.9 mm. ; 056-.076 

 inch. (PI. V, figs. 10 and 10a). 



Hab. — New Hampshire, Massachusetts, Pennsylvania, District 

 of Columbia, Maryland, Michigan, Illinois. 



This species was confused by Smith with the preceding, from 

 which it is readily separated by the smaller, strongly constricted 

 thorax, which is more coarsely and unevenly punctate; stouter body; 

 shorter, more strongly dilated and more coarsely sculptured l)eak 

 and sparser pubescence, especially beneath. In addition, it may be 

 said that the metasternum and first two ventral seo'ments are much 



