NOKTH AMERICAN COLEOPTERA. 139 



fulvous scales, scales on the underside and legs dirty jrray. Beak, in the male, 

 stout, distinctly tapering from the base to the apex, cur%'ed, about as long as head 

 and prothorax. densely punctured, feebly shining toward the apex, basal tufts 

 prominent, constriction deep; scrobes subparallel. Head finely rugulose, front 

 densely co%'ered with pale yellow scales. Prothorax a trifle wider than long, 

 about two-thirds as wide at the apex tiiaii at the base, sides broadly rounded, 

 distinctly constricted at the apex, slightly narrowed toward the base; surface 

 not very closely punctured, punctures moderately large, scarcely concealed by 

 the scales; scutel small, squamose. Elytra about one-third wider at the base 

 than the prothorax, elongate, sides straight, parallel for fully one-half their 

 length, thence rounded to the a[)ex ; striiB distinct, punctures small, irregular, 

 remote and not very obvious, interstitial setje verj- sparse, extremely short and 

 scarcely visible; the lateral vitta extends almost the whole length of the elytra, 

 from the fourth to the sixth interspaces inclusive; sutural space mottled with 

 small, subqnadrate spots of white scales. Prosternuni broadly emargiuate, 

 transversely impressed ; postocular lobes feebly developed. Thighs clavate, 

 tibiie moderately stout, apical spurs small ; tarsi rather slender, third joint bi- 

 lobed, fourth long and slender; claws very small, connate beyond the middle. 

 Length 3.0 mm. ; 0.12 inch, Plate vii, fig. 12. 



Hah. — California. Dr. Horn's and Islv. Ulke's coll. 



Two males. A distinct form. The only species with which it 

 could be confounded is cognatus and spretus of the next group, from 

 both of which it differs by the absence of antecoxal ridges ; it is 

 smaller than cognatus, with the prothorax scarcely wider than long, 

 larger than .spretus, with different arrangement of the scales on the 

 elytron ; from the next species it differs by the colored elytral vitta 

 and the prothorax narrowed toward the base. Dr. Horn's specimen 

 has the lateral elytral vitta whitish, le.ss defined and the i)roth()rax 

 a little less rounded. 



S. tartlns n. sp. — Elongate-oblor.g, blackish, legs paler. Vestitnre of the 

 upper surface consists of rather small, very dense dark brown, oval scales, a 

 broad vitta on each elytron, consisting of whitish scales, meddled with fulvous, 

 occupying the fourth, fifth and sixth interspaces, scales on the under surface not 

 dense, very small, grayish white. Beak robust, moderately curved, tapering 

 from the base, opaque, feebly shining near the apex, densely punctured, subcari- 

 nate, feebly striolate each side, sparsely scaly, except near the base, where the 

 scales form two yellowish, very prominent tufts, about as long as head and pro- 

 thorax, basal constrictions deep. Head finely alutaceous, front punctured and 

 rather densely scaly: antennje not very slender, first joint of funicle robust, 

 second scarcely longer than the third, outer joints wider, nearly as wide as the 

 club, basal joint of latter feebly pubescent. Prothorax a little wider than long, 

 not strongly narrowed in front, apex widely and distinctly constricted, sides 

 straight from before the middle to the base, surface not closely punctured, small, 

 a little larger towards the sides, each one bearing a filiform scale, an inconspicu- 

 ous median vitta of pale scales. Scutel distinct, small, scaly. Elytra fully unc- 

 third, and somewhat suddenly wider at the base than the protli.inix-. humeri 



TRANS. AM. ENT. SOC. XXI. MAY, 1894. 



