Coleopterological Notices. 439 



character?. The anterior tax-si of the male are rather more strongly 

 dilated than in any other species. 



The wings are well developed, being nearly as long as the elytra. 



18 St. rilfipes n. sp. — Elongate-oval, strongly convex, rather dull, pice- 

 ous-black ; legs rufo-ferruginous ; under surface piceous to rufo-ferruginous ; 

 pubescence fine, rather long, moderately dense, dark piceous in color and very 

 inconspicuous. Head wider than long, feebly convex, strongly and densely 

 punctate; epistoma rather narrowly and deeply sinuate ; upper lobe of eye 

 rather small ; antennae rather long and slender, the last three joints forming 

 a somewhat abrupt loose club, third joint twice as long as the second, much 

 longer than the fourth, eighth subtriangular, nearly as long as wide, eleventh 

 somewhat longer than wide and slightly narrower than the tenth. Prothorax 

 somewhat elongate, scarcely one-half wider than long, the sides very feebly 

 convergent from base to apex, evenly and rather strongly arcuate ; base trans- 

 verse, the sinuations distinct ; basal angles very slightly obtuse, not distinctly 

 rounded; apex very feebly emarginate in circular arc; disk evenly convex, 

 rather strongly, deeply, very densely punctate, the punctures a little sparser 

 near the middle but not separated by more than their own diameters, very 

 dense, sometimes contiguous but not distinctly coalescent toward the sides. 

 Scutellum broadly parabolic. Elytra, behind the middle, a little wider than 

 the prothorax, nearly three times as long as the latter ; sides rather distinctly 

 arcuate ; apex parabolic ; disk finely striate, the striae rather distinctly im- 

 pressed, more strongly so toward the suture but not noticeably toward the 

 ■sides, finely and very approximately punctured in the female, more coarsely 

 and distantly so in the male ; intervals very feebly convex, very finely and 

 sparsely punctate. Abdomen finely and rather sparsely punctate, rather 

 coarsely but sparsely pubescent, the hairs very long, pale flavate and con- 

 spicuous. Leys rather short, the femora robust. 



Male. — Anterior tarsi strongly dilated, the basal joint triangular and but 

 slightly more than one-half as wide as the second, the latter about equal in 

 length and width to the third, the latter broadly emarginate ; intermediate 

 rather strongly dilated ; both pairs densely spongiose beneath ; abdomen 

 rather narrowly and feebly impressed in the middle toward base. 



Length % 5.0 mm., $ 5.0-6.0 mm.; width £ 1.9-2.1 mm., $ 2.2-2.G mm. 



California (San Diego); Arizona; Texas? 



This species belongs to the San Diego fauna, perhaps extending 

 through to Western Texas; it is represented in the middle coast 

 regions of California by elongatus, in the high Sierras by inquisitus, 

 and in the desert regions of the Humboldt Basin by crassicornis. 

 It is remarkable, in common with pulve?*ulentus, for the unusual 

 difference in form and size between the male and female, the former 

 being much the more slender ; it is further distinguishable from its 

 allies by its usually bright rufo-ferruginous legs, duller lustre and 

 longer, paler and more conspicuous abdominal pubescence. 



