56 ENTOMOLOGICAL SOCIETY 
at basal half as the dilated portion of the median, rather feebly separated 
from the median by the foveate interspaces. Scutellum broadly, some- 
times feebly sulcate. 
Elytral striae distinctly punctate; intervals alternating in width but 
equal or nearly equal in convexity, surface smooth, shining, faintly, mi- 
nutely, and sparsely punctulate. Pygidium coarsely and strongly punc- 
tate, clothed with short bristly reddish hairs, becoming more dense toward 
the apex and forming tufts at the sides; apex truncate in both sexes. 
Lower surface coarsely, sparsely punctate at the sides; second, third 
fourth, and anterior half of last abdominal segments faintly punctulate at 
middle. Legs finely punctulate. 
d\ Body more slender, thorax narrower anteriorly; rostrum more 
slender, just perceptibly shorter and with apex less acute. Metasternum 
and first abdominal segment deeply broadly concave at middle, with a long 
row of short brown bristly hairs each side within the concavity; second 
abdominal concave on the anterior portion with the more elevated 
portion perfectly curved and bearing at its summit a transverse brush of 
dark bristly hairs; last segment also concave, forming between its middle 
and the posterior margin a deep or moderately deep fossa, coarsely punc- 
tate interiorly and with a row of smaller punctures near the posterior 
margin. 
9 . Metasternum slightly concave, abdomen convex, last segment nearly 
flat at apex. 
Length, cT 11-14 mm., $ 15-16 mm.; width 4.5-6.0 mm. 
New Orleans, La., March n, 14, October 26 (Soltau) ; "Louis- 
iana;" Texas. The geographical distribution is evidently limi- 
ted to the Gulf region, and the center of greatest abundance is 
probably in the western Gulf States near the seaboard. 
Type. No. 8224, U. S. National Museum. 
Distinct from all other species of the genus on account of its 
longer rostrum (fig. 10, 6), and from related species by its sub- 
equally convex elytral intervals. It is the largest North 
American species outside of the (Equalis group. 
Say's description of pertinax fits this species, as well as the 
true pertinax of Olivier, but his inter stitialis is different, nor does 
Horn's interpretation of Say's inter stitialis apply, since the latter 
states that the body beneath is as coarsely punctured at the 
sides as at the middle. 
Sphenophorus peninsularis, new species. 
Form similar to setiger, but distinctly more slender. General color black 
and with an abundant clay-colored natural coating covering a large portion 
of the dorsal and ventral surfaces. It covers the apical constriction except 
a transverse band, narrower than the head, which joins the median vitta, 
also the elytra, except the humeri and anterior half of the sutural and third 
elytral intervals. 
