NOKl'H AMERICAN OOLEOPTERA. 151 



rouiuled on the sides, surface (when denuded) coarsely and not closely imiictured, 

 interspaces finely granulate, white erect setse distinct. Soutel distinct. Elytra 

 elongate, narrow, one-third wider at base than the protborax, humeri prominent; 

 sides straight for three-fifths their length ; strise rather coarse, punctured, inter- 

 spaces slightly convex, rugose, subercct set?e very distinct, white, piliform, per- 

 sistent: antecoxal ridges distinct, jjostocular lobes not very prominent. Femora 

 not strongly clavate, tibife parallel, jjosterior widened toward the apex, apical 

 spurs very feeble; tarsi very stout, broad, the fourth joint j)rojecting distinctly 

 less than the length of the third ; claws connate two-thirds their length. Length 

 1.7 mm. ; 0.07 inch. 



Hnb. — California. 



Three specimens in Dr. Horn's collection, all denuded of their 

 scaly ve^titure, are before ine, the erect setae, however, giving a pu- 

 bescent appearance, are very conspicuous. From pusil/us and pusio, 

 both of which it resembles somewhat in form and size, it is distin- 

 guished by the presence of antecoxal ridges, the dark piceous legs, 

 and the evident erect seise ; abraded specimens might be confounded 

 with apionides, but the latter species is larger, the prothorax wider 

 than long, the scales condensed in spots and the interstitial setae not 

 evident. From fraterculus, with which it agrees in general form and 

 size, it is distinguished by the more coarsely punctured prothorax 

 and the persistency of its elytral setse. 



S, IViilerciilus n. sp. — Elongate-oblong, black, legs piceous, densely 

 clothed with moderately large, yellowish gray, oval scales. Beak (female) rather 

 stout, feebly curved, as long as head and prothorax, slightly tapering, closely 

 punctured iu basal half, more remotely punctured and feebly shinitig beyond the 

 insertion of the autennse, densely scaly at the base, tufts evident, constriction 

 not deep; antennas inserted a trifle before the middle, first joint of funicle 

 robust, second a trifle longer than the third. Head finely rugulose, front puuc- 

 tulate, squamose. Prothorax as long as wide, slightly narrowed anteriorly, sides 

 broadly rounded, apex not constricted, surface closely punctured, punctures 

 small, superficial, interspaces subgranulate, scales intermixed with suberect 

 whitish hairs. Elytra scarcely one-third wider at the base than the prothorax 

 and less than twice as long as wide, humeri prominent, very slightly rounded 

 on the sides before the middle, not deeply striate, punctures distinct, remote, 

 interspaces (when denuded) feebly shining, rugose, setae small, procumbent, 

 scarcely visible. Prosternum rather short in front of the coxte, ridges distinct; 

 postocular lobes prominent. Legs moderately robust, anterior tibiae biemarginate 

 within, hooks small, distinct; tarsi rather robust, third joint not much wider 

 than the second, fourth not very slender, projecting considerably more than the 

 length of the preceding; claws connate for about two-thirds their length. 

 Length 1.75 mm.; 0.07 inch. 



Hab. — Arizona. 



One 9 specimen, collected by Mr. Wickham, in my collection. 

 Very closely resembles seriatus in form and general habitus, but the 



TRANS. AM. KNT. SOC. XXI. MAY. 1894. 



