Horn.] ODLj [Juno 20, 



late, middle and hind tibiae finely biseriately spinulose. Length. 10 inch; 

 2.5 mm. 



This species in its general aspect resembles eonvexiuseulus. It is the 

 only species in the group with both subhumeral striaj obliterated, and with 

 the sutural also obsolete at base and apex. 



One specimen (ISTo. 546) collected by Mr. G. W. Belfrage, at Waco, 

 Texas. 



With the next species begins a small group in which the thorax is 

 punctured over its entire surface, always equal (or very nearly so) at the 

 disc and sides. The elytra are also punctured from apex to base, and like 

 the thorax, nearly equally over the entire surface. 



S. laridus, Lee. Ann. Lye. V, p. 168. 



Piceous, shining, legs brownish-red. Head rather coarsely punctured, 

 supra-orbital and frontal striae obliterated. Thorax coarsely, but 

 sparsely punctured, slightly more densely at the sides, in front of scutel- 

 lum slightly impressed. Elytra sparsely punctured over the entire sur- 

 face, somewhat less densely at base ; external subhumeral short, but 

 distinct, humeral oblique, rather deeply impressed, separated from the 

 internal subhumeral by a very slight space, the latter stria deeply im- 

 pressed at the basal portion, extending three-fourths to apex; dorsals 1-4 

 sub-equal, extending slightly beyond the middle, the fourth arcuate at 

 base joining the sutural, which is rather less impressed at basal third and 

 apt to become obsolete and obliterated at apical fourth. Propygidium 

 and pygidinm moderately coarsely, but not densely punctured, the latter 

 much smoother at apex. Prosternal striae strongly divergent and slightly 

 ascending. Anterior tibiae minutely denticulate, middle and hind tibiae 

 finely biseriately spinulose. Length .06- .08 inch ; 1.5-2 mm. 



It is in this species that the smallest representatives of the genus Sap- 

 rinus occur in our fauna. In its aspect it recalls scissus but differs in its 

 punctuation and other characters as given above. 



Occurs in California. 



S. insertus, Lee. Ann. Lye. V., p. 167 ; obductus, Lee, vinctus, Lee. 

 I. r. p. 168. 



Black, shining, surface with faint bronze tinge. Head moderately, 

 densely and coarsely punctured ; supra-orbital stria obliterated, frontal 

 slightly visible at the sides. Thorax rather coarsely but not densely, 

 and nearly equally punctured over the entire surface, punctures at sides 

 slightly aciculate. Elytra punctured similarly to the thorax ; external 

 subhumeral confluent with the marginal ; oblique humeral moderately 

 impressed, nearly continuous with the internal subhumeral, which ex- 

 tends three-fourths to apex ; first dorsal extending three-fourths, second 

 slightly beyond the middle, third and fourth slightly shorter, the latter 

 arching at base, joining the sutural, which is entire. Propygidium and 

 pygidium densely and rather coarsely punctured. Prosternum broadly 

 convex, punctured, striae divergent and slightly ascending. Anterior tibiae 



