OF WASHINGTON. 
173 
FIG. 19. Sections of elytra, show- 
ing strial puncti i ation : Sphenopho- 
rus arizonensis at left, fallii at right 
terior tarsi with third joint transverse cordate, twice as wide as first 
spongy pubescent on under surface. 
c?. Ventral concavity moderately deep. Pygidium with feeble median, 
dividing line; apical tufts minute. 
Length 8. 3. mm., width 3.2 mm. 
Santa Fe, New Mexico, August, 
1887 (coll. H. C. Fall). 
Type. No. 9726, U. S. National 
Museum, i J. 
This form might readily pass as 
the male of arizonensis, of which I 
have seen only the female, but for the 
spongy pubescent lower surface of 
the third joint of the anterior 
tarsi which throws the species 
into a distinct group. The characters furnished in the 
description indicate the main differences. Otherwise the 
two are remarkably alike. 
Sphenophorus subulatus, new species. 
Form slender, resembling simplex; general color polished black; an- 
tennae piceous, and portions of legs more or less indistinctly piceous, 
dorsal surface sometimes piceous. 
Rostrum three-fifths to four-fifths as long as thorax, somewhat feebly 
and uniformly arcuate, cylindrical, a little more compressed at base and 
narrowed at apex; apical fifth to third laterally subcarinate. Base 
somewhat feebly dilated, little more over scrobes, not canaliculate; 
interocular fossa inconspicuous, rounded; impressed line wanting or 
feebly indicated each side of scrobes, not extending to the fossa. Apex 
flat or slightly "con vex on anterior face. 
Thorax about one-fourth longer than wide, nearly uniformly arcuate 
at sides to apical fourth, where it suddenly narrows to apex, the latter 
strongly constricted ; surface more coarsely, sparsely, and deeply punctate 
than in simplex, with median smooth line half as long as thorax, extending 
from in front of middle and not attaining base; each side of median line 
the punctures are deeper and confluent. Basal margin nearly straight. 
Scutellum flat or channeled at middle. 
Elytra one-fourth wider than thorax, one-half longer than wide, some- 
what strongly narrowed to apex. Striae half to nearly as wide as narrow 
intervals, coarsely and closely punctate, punctures encroaching on inter- 
vals gradually more strongly from sutural to lateral, where the striae 
tend toward obsolescence. Intervals all convex, subequal except third, 
which is widest, alternately uniseriately and biseriately punctulate, 
5] and 7 sometimes uniseriately. Pygidium coarsely and densely punctate, 
punctures becoming confluent at apex and at sides, glabrous except apical 
tufts at sides. 
Lower surface coarsely and densely punctate, punctures deep, not 
varying conspicuously in size, except in the customary extreme places, 
