122 AMERICAN COLEOPTERA. 



19. A niiniitiiin Smith. — Entirely black; pubescence indistinct. Beak {%) 

 about as louo; as the bead and prothora.K, stouter at the base, more slender and 

 slightly tapering beyond the dilatation; finely sculptured in basal half, thence 

 polished to the tij>; punctuation fine and sparse : {^ ) a little longer, very slender, 

 not dilated. Antennte as usual. Front longitudinally rugulose ; eyes moderate. 

 Prothorax subcylindrical. very little longer than wide; base a little wider than 

 the apex; sides moderately prominent at the middle; surface usually sparsely 

 punctate with nearly complete dorsal line. Elytra rather short, strongly, longi- 

 tudinally convex; humeri small; sides divergent, rather more strongly than 

 usual, widest at the middle; strise moderate; intervals nearly flat or feebly con- 

 vex. Beneath sparsely punctate. Length 1.5-1.8 mm. ; .06-.07 inch. 



% . Front thighs merely swollen ; smooth area with, at most, a few very fine 

 strife; limiting ridge evident; other characters as usual in the group. 

 9 . Tips of elytra produced. 



Hub. —Georgia, Florida. 



20. A. texaiiuin Smith. — Closely allied to the preceding, and differing as 

 follows: The beak (%) is distinctly shorter than the head and prothorax. The 

 elytra are narrower and less longitudinally convex ; the humeri relatively a little 

 more prominent; the abdomen more strongly and numerously punctate. The 

 legs are a trifle more slender. This is the smallest species of the section, and 

 should be separated without difficulty by the above characters. Length 1.3-1.5 

 mm. ; .05- .06 inch. 



All specimens seen are from Texas, and nearly all from Columbus, 

 where it was taken many years ago by Mr. Schwarz. 



21. A. peimsylvaiiicuin Boh. — Entirely black, with or without faint, 

 seneous lustre; pubescence very sparse and inconspicuous. Beak (% ) about as 

 long as the head and prothorax, dilated, noticeably stouter at base than beyond 

 the dilatation ; polished in about the apical half, and finely, sparsely punctulate; 

 ( 9) more elongate and slender, not dilated. First joint of antennse as long as 

 the next two ( % ), or three ( 9 ), second joint reaching the eye. Front rather 

 wide, canaliculose ; eyes moderate. Prothorax as long or a little longer than 

 wide, subcylindrical; base a little wider than the apex; sides with the usual 

 median prominence; surface variably punctate, usually moderately, closely, but 

 sometimes quite sparsely ; impressed line complete or not. Elytra rather strongly 

 widening to the middle; humeri moderate or small ; striae well impressed ; inter- 

 vals moderately wide, flat or slightly convex. Beneath sparsely, finely punctate. 

 Length 2. mm. ; .08 inch. (PI. II, figs. 9 and 24). 



%. Front thighs merely swollen ; smooth area not striate; limiting ridge evi- 

 dent; other characters as usual. 



9 . Elytral tips more or less strongly produced. 



Occurs from Florida to the New England States, thence westward 

 to Washington and down the Pacific Coast to Southern California. 



Examples from the west coast are, as a rule, a little less shining 

 and with less developed humeri ; the differences are, however, small 

 and evanescent. The beak is sometimes very much elongated in 

 the female, and the first antennal joint in such cases becomes even 



