408 Coleopterological Notices, IV. 



long, one-fourth longer than wide, distinctly wider at the middle than at base, 

 parabolic in apical half. Length 2.3-2.7 mm. ; width 1.2-1.4 mm. 



Pennsylvania; District of Columbia; Indiana. 



A common eastern form resembling ovipennis but much larger, 

 with a relatively larger, more inflated prothorax, more elongate 

 beak and longer second funicular joint. I found it labeled "amce- 

 nas" in my cabinet, a mistake which may possibly be common ; 

 amcenus is a widely different species, with the prothorax scarcely 

 perceptibly narrower than the base of the elytra. One specimen 

 before me is labeled "Arizona," but perhaps erroneously. 



37 S. ovipennis Lee— Proc. Am. Phil. Soc. XV, p. 170. 



Oval, strongly convex, stout, black, the legs rufescent ; scales of 

 the upper surface moderately large, very dense, confusedly mottled 

 with whitish and different shades of brown or piceous, the white 

 scales usually more numerous and forming a distinct line at the 

 base of the third interval. Beak in the male rather stout, densely 

 squamose, a little longer than the head and prothorax ; antennae 

 inserted at apical two-fifths, the second funicular joint but slightly 

 longer than the third. Prothorax small, slightly but quite distinctly 

 wider than long, the sides evenly, rather strongly arcuate, conver- 

 gent and very feebly constricted anteriorly, the apex fully three- 

 fourths as wide as the base ; disk densely, strongly punctate. Elytra 

 at base nearly one-half wider than the prothorax, almost three times 

 as long, barely one-fourth longer than wide, distinctly wider in the 

 middle than at base, gradually, acutely ogival in apical half; striae 

 indicated by coarse and uneven partings of the vestiture. Length 

 1.8-2.0 mm.; width 0.8-1.1 mm. 



Texas to Montana. The measurement given in the original 

 description is slightly too great. 



PROMECOTARSUS n. gen. 



I have separated under this name three species closely allied to 

 Smicronyx, but differing in the longer, more glabrous tarsi, having 

 a smaller third joint, with the fourth joint very long and subequal 

 in length to the entire remainder. In general appearance the species 

 are more cylindrical than in Smicronyx, and more nearly resemble 

 Endalus. The principal characters may be expressed as follows : — 



Body cylindrically convex, the elytra but very slightly wider than the pro- 

 thorax, the vestiture dense, consisting of small, imbricated, almost completely 



