212 MEMOIRS ON THE COLEOPTERA 



head moderately impressed, coarsely but not very closely punctate; 

 prothorax two-fifths wider than the median length, widest slightly 

 before the middle, the sides strongly arcuate, gradually unusually 

 strongly convergent, becoming broadly and very feebly sinuate, 

 basally; apex about as wide as the base, moderately sinuate, the 

 sinus somewhat angulate at the middle, the angles acute; basal 

 angles right, sharp; surface somewhat shining, feebly convex, mark- 

 edly declivous basally, feebly impressed at each side in more than 

 apical half, coarsely, very closely punctate, rather broadly explanate, 

 very coarsely punctate and granularly rugose laterally, the edge 

 thicker than usual and only very slightly and gradually reflexed, 

 granose and uneven; pale hairs very small, long and bristling at the 

 sides; scutellum small, as long as wide, very acute; elytra evenly 

 oval, parallel, nearly four-fifths longer than wide, almost one-half 

 wider than the prothorax, the sides evenly arcuate; apex steeply de- 

 clivous and rather gradually parabolic; surface strongly convex, the 

 granules sparse but strong, the setse long; side margins very narrowly 

 declivo-explanate, costiform, closely, confusedly granose; abdomen 

 finely but strongly asperulate, closely so medially, less closely though 

 not very sparsely laterally; legs very short, rather stout; last palpal 

 joint very pale as usual, exactly recti-triangular in the type. Length 

 (cf 1 ) 14.4 mm.; width 5.9 mm. California socors n. sp. 



Sides of the prothorax parallel, feeble, to rather strongly arcuate but 

 never very conspicuously oblique posteriorly; side margins of the 

 elytra having, as usual, the form of acutely elevated cariniform lines, 

 which are irregular or subtuberculose along their summits, after the 

 manner of nearly all the species of this genus 6 



6 Body subcylindrically convex, dark brown in color, the elytra paler 

 brown; head moderately impressed transversely and on the vertex, 

 the punctures rather coarse, well separated; prothorax small, 

 between a fourth and fifth wider than long, the apex fully equal in 

 width to the base, only moderately deeply, elliptically sinuate, 

 the angles slightly acute; sides rounded at or before the middle, 

 gradually converging, becoming broadly and feebly sinuate to the 

 basal angles, which are right and sharp; surface rather feebly convex, 

 more or less impressed at each side before basal third, rapidly de- 

 clivous posteriorly, coarsely, more or less closely punctate, rather 

 abruptly strongly reflexed and coarsely punctato-rugose at the 

 sides, the thin edges strongly serrulate; scutellum acute, about as 

 long as wide; elytra two-thirds to three-fourths longer than wide, 

 not very obtuse but very steeply declivous behind, a third to nearly 

 two-fifths wider than the prothorax, very strongly convex, more or 

 less shining, sparsely, unevenly granose, the side margins moderately 

 reflexed, thin, strongly granose, the setae only moderately long; ab- 

 domen finely, asperulately punctate, more closely toward the middle 

 in the male, the pale hairs short. Length (cf, 9) 11.8-12.8 mm.; 

 width 5.2-5.7 mm. California (San Diego Co.). [As-ida angustula 



Csy.] angustula Csy. 



A Body similarly small and slender though more parallel, the pro- 

 thorax but scarcely visibly narrower than the elytra, blackish- 



