44 JOHN B. SMITH. 



Elytra with distinct humeral angle. 



Humeri small, form slender, 1.5— .3 mm erytliroceriiiii. 



Humeri larger, form robust, 2.25— .3 mm robustlllU. 



A. erraticiiin n. sp. — Entirely black. Head elongate, grossly and densely 

 punctured, rostrum moderate in length, slightly curved, slightly dilated near 

 middle, thence more slender to tip ; antennae moderate, basal joint stoutest, not 

 longer than third; .second ovate, half shorter than first, club rather slender. 

 Thorax narrow, cylindric, very slightly widening at middle, coarsely and densely 

 punctured, an impressed dorsal line. Elytra with scarce evident humeri, sides 

 narrow, elongate, ovate ; striae narrow, punctures fine and distant; intervals flat. 

 Sternum punctured in parallel rows ; abdomen coarsely punctured. Length 2 mm. 



Hah. — Texas, Iowa 



Distinguished from the other species of the group by the prominent 

 eyes and very slender, narrow, ovate form. The tarsal claws are dentate 

 in one sex. A few specimens only. 



It may be stated here that characters u.sed in the synopsis are not al- 

 ways recapitulated in the descriptions, that the punctuation differs .some- 

 what in coarseness in the specimens, and that the elytral stria differ 

 somewhat in depth and in the distinctness of their punctures. The 

 rostrum of the 9 is usually longer than that of the % , and less distinct- 

 ly dilated when there is any dilatation. 



A. obsoletum n. sp. — Black, legs piceous, more robust and very little 

 larger than the preceeding. Eyes moderate, scarcely prominent ; head canalicu- 

 late; rostrum slightly longer than in erraticum. Antennae elongate, piceous 

 brown, basal joint equal to second and third together, the two latter equal in 

 length. Thorax as before, but less coarsely punctured ; elytra more broadly ovate ; 

 striae distinct punctures evident and approximate, intervals convex. Beneath 

 densely punctured. Length 2 mm. 



Dacota, Michigan, Canada. 



Easily distinguished from the preceding by the characters given, and 

 by the more portly appearance of the insect. The color of the legs 

 varies from dark piceous brown to bright red-brown, hardly two speci- 

 mens being alike. The geographical range of the species is wide, and it 

 will probably be found all over the country. The specimens now known 

 are few, and are scattered in several collections. 



A. erytlirocerum n. sp. — Entirely black. Head coarsely punctured, eyes 

 not prominent; rostrum very slightly dilated at middle, moderate in length; an- 

 tennae as in obsoletum, second joint ovate, stout, third elavate and more slender. 

 Thorax densely and coarsely punctate, else as before. Elytra with distinct humeri, 

 form stout, widest behind middle; striae fine, punctures scarcely evident, intei'- 

 vals convex. Beneath densely punctate ; metasternal punctures in longitudinal 

 ro\^s to middle, and thence transversely forward to tip. Length ].2 mm. 

 Hah. — Kansas. Middle States, D. C. and Tenn. 



