1873.] 333 [Horn 



finely multidenticulate, middle and hind tibia; finely biseriately spinu- 

 lose. Length .10-.14 inch ; 2.5-3.5 mm. 



After repeated examination I am unable to find any characters on which 

 to separate the three species in the above synonymy. 



Occurs in California and Oregon. 



I have in my cabinet a specimen from the Yo Semite Valley, Califor- 

 nia, which is closely allied to the preceding, differing in its less convex 

 form, stria? longer, elytra very densely aciculately punctured at apex, 

 and with a narrow basal space somewhat broader at the suture nearly 

 free of punctures. At present I do not feel warranted in giving it a 

 name as I have never seen other than the one specimen. 



S, seqriipunctatus, Horn, Trans. Am. Ent. Soc, 1870, p. 140. 



Oblong oval, black, feebly shining. Head moderately densely punc. 

 tured, supra-orbital obsolete, frontal slightly visible at the sides. Thorax 

 nearly equally, coarsely and rather densely punctured over the entire sur- 

 face. Elytra densely punctured over the entire surface ; external sub- 

 humeral wanting, humeral fine oblique, joining the internal subbumeral 

 which extends four-fifths to apex; dorsal stria; straight, 'parallel, first 

 extending four-fifths to apex, 2-3-4 gradually and very slightly shorter, 

 the fourth not arcuate at base ; sutural stria feeble especially at base 

 where it forms a slight arc within the fourth dorsal. Propygidium 

 densely and coarsely punctured, pygidium apparently double, upper por- 

 tion vertical, apical part horizontal, surface densely and coarsely punc- 

 tured. Prosternum broadly convex, punctured, striae divergent and very 

 feebly ascending. Anterior tibia; finely multidenticulate, middle and 

 hind tibke finely biseriately spinulose. Length .12-14 inch ; 3-3.5 mm. 



This species is one of the most distinct and easily recognizable in our 

 fauna. PL v. fig. 8. 



Occurs near San Francisco, California. 



S. ciliatus, Lee. Ann. Lye. V., p. 1(38. 



Broadly oval, brownish, surface with slight bronze tinge. Head 

 densely rugoso-punctate, supra-orbital moderately distinct and frontal 

 stria slightly visible at the sides. Thorax with the entire margin ciliate 

 with moderately long hairs, disc sparsely punctured, sides densely and 

 aciculately punctured to the extreme margin. Disc of elytra sparsely 

 and finely punctured, sides and apex densely aciculately punctured ; 

 external subbumeral short basal, humeral fine, oblique, uniting by punc- 

 tures with the internal subbumeral, which extends two-thirds to apex, 

 first dorsal extending slightly beyond the middle, third extending nearly 

 to apex of elytra, second intermediate between the first and third, fourth 

 extending to apical three-fourths and arched at base ; sutural finely 

 impressed, entirely obsolete at basal fourth ; apical marginal line 

 obsolete. Propygidium and pygidium moderately densely but not 

 coarsely punctured. Prosternum broadly convex, stria; divergent and 

 slightly ascending. Legs rufous, anterior tibia; rather coarsely denticu- 



