170 AMERICAN COLEOPTERA. 



Hah. — Arizona. 



The shape of the thorax and width of tlie elytral intervals are 

 subject to some variation. The middle femora are just visibly 

 stouter. A specimen in Dr. Horn's collection bears an orange 

 locality label (Fla. ?). 



97. A. gracilif'oriiie n. sp. — Very elongate, parallel, brown throughout, 

 clothed not very densely with whitish scales, which are broader on the prothorax. 

 Beak almost as long as the head and prothorax, cylindrical, feebly dilated. 

 Antennae stout, first joint a little paler. Prothorax a little wider than long; 

 claws feebly toothed. Length about 1.8 mm. ; .07 inch. 



%. First joint of middle tarsi armed with a spur; middle femora noticeably 

 stouter. 



9 . Not seen. 



Hab, — Dakota. 



Quite close to the following species, from which the above brief 

 diagnosis will enable it to be distinguished. A single .specimen in 

 the National Museum placed with paralleluni. The color may 

 possibly be due to immaturity, but there are no other indications 

 of it. 



98. A. exteusuni Smith.— Elongate, black, conspicuously clothed with 

 squamiform hairs, which are densely placed on the meso and metasternal side 

 pieces. Beak not appreciably different in the sexes, subequal to the head and 

 prothorax, evenly arcuate, cylindrical, not dilated and not at all attenuate when 

 viewed laterally : surface finely strigose, except at apex ; punctuation distinct, a 

 little finer above and toward the tip. Antennae moderately stout, picescent at 

 base, first joint nearly as long as the three following, second reaching the eye, 

 outer joints transverse. Front slightly wider than the tip of the beak, punctate; 

 eyes feebly convex, not prominent. Prothorax about as long as wide, width at 

 base about one-fourth greater than at the apex, and not greater than at just 

 behind the middle ; apical and basal constrictions evident ; surface rather strongly, 

 closely punctate; basal fovea small. Elytra narrow, subparallel : humeri small ; 

 intervals rather wide, feebly convex. Beneath deeply, rather coarsely and 

 closely punctate ; last tarsal joint projecting beyond the lobes of the third, a 

 distance equal to their length; claws not strongly toothed. Length 2.2 mm.; 

 ■09 inch. 



% . First joint of middle tarsi prolonged in a spiniform process on the inner 

 side. 



9 . Middle tarsi not spiued. 



Hab. — Dakota (Bismarck). 



Four examples taken by Mr. Wickham. A very distinct and 

 easily recognizable species. 



99. A. paralleluni Smith. — Elongate, black, moderately pubescent. Beak 

 ( '^ ) rather strong, subequal to the head and thorax, feebly dilated, somewhat 

 attenuate, finely sculptured almost throughout, sparsely punctate, without supra- 



