174 ENTOMOLOGICAL SOCIETY 
those of sides being considerably larger than the middle on the third 
and fourth ventral segments. Legs strongly and somewhat finely punc- 
tate. Tibiae densely fimbriate with short hairs. Third joint tarsi: 
anterior one-fourth, middle and posterior one-fifth, wider than first. 
6 71 . Ventral concavity somewhat faint, last ventral segment with large 
deep rounded fossa. Pygidium comparatively wide at apex, with sides 
somewhat broadly rounded. 
9 . Metasternum flat or nearly so, abdominal segments convex, the 
last narrowly transversely concave at the apex. Pygidium narrower at 
the apex and more broadly rounded than in cT. 
Length 8-9 mm., width 3.9 mm 
New Mexico, 2 cT d\ i ? (coll. Ulke). One male of this 
small series is much more finely punctate over the entire 
surface than the other two, otherwise it does not differ. 
Type. In the Carnegie Museum, Pittsburg, Pa. Cotype, 
No. 8970, U. S. National Museum (o 71 ) through the courtesy 
of Dr. W. J. Holland. 
This species is very different from any other Sphenophorus 
occuring in the United States, but three closely related forms 
in the National collection, from Mexico, display great similarity, 
evidence that the type may be a common one in Central 
America and that there may be many more species of this 
group in that region. The rostrum is more slender than in 
others of our fauna, while the anterior tibiae are less dilated 
at the sides than in the simplex and vomerinus groups, and 
are very slightly angulate. 
Sphenophorus destructor, new species. 
Of similar form to zece, proportions variable, but with an average width 
of four-tenths the length. Surface usually so thickly coated with dull 
clay-colored or pale brown argillaceous deposit that the punctuation, 
more especially of the elytra, is much obscured. 
Rostrum three-fourths as long as thorax, moderately arcuate, nearly 
straight on middle half of anterior margin, feebly compressed in the 
middle third, thence widening gradually to the apex, which is subob- 
tusely angled behind. It is slightly protuberant above the eyes, con- 
siderably dilated in front of the scrobes, and somewhat deeply and broadly 
channeled from the base to a little beyond the scrobes, this channel fre- 
quently filled with argillaceous deposit; surface rather deeply and densely 
punctate, at base coarsely. Head moderately finely and sparsely punc- 
tate. 
Thorax a little longer than wide, posterior half with sides nearly parallel, 
anterior half strongly arcuate, moderately constricted at apex, strongly 
bisinuate at base; surface irregularly trivittate; vittae variable, tending 
toward obliteration in some individuals, middle vitta irregular elongate 
fusiform, with an irregular, interrupted, shining, black, elevated line 
