punctured. Thorax distinctly narrower in front, sides very obtusely angulate, 
widest behind the middle, narrowed to base, more obliquely narrowed in front, 
margin feebly crenate, sparsely ciliate, disc convex, the punctures moderately coarse, 
variably placed, sometimes closely and equally, sometimes sparsely and irregularly 
on the disc, leaving smooth spaces, but no smooth median line ; a distinct depression 
of the basal margin externally. Elytral punctures finer, much more dense, somewhat 
rugulose, costee evident. Pygidium moderately and somewhat irregularly punctured, 
less densely so in the female. Metasternum densely punctured, the hair long and 
dense in the male, short and sparse in the female. Abdomen finely punctate, more 
dense at the sides, the last two segments much more coarsely and densely punctate. 
Last joint of maxillary palpi fusiform, not impressed. Length .75—.85 inch = I9 
to 21 mm. 
Habitat—Washington, D. C., Tennessee, Virginia, Ohio. 
Matr.—Antennal club slightly longer than the funiculus. Pen- 
ultimate segment with a very strongly elevated, overhanging arcuated 
crest, occupying nearly the entire length of the segment, behind which 
there is a deep, transverse, punctured impression. In some specimens 
the crest is divided at the middle, and a longitudinal impression extends 
forward to the middle of the preceding segment. Last ventral with a 
quadrate, punctured impression, the hind margin with a small deep 
emargination. Claws arcuate, tooth rather extra median, shorter than 
in the female. The fixed spur is quite short, less than half the length of 
the outer, and proportionately less stout. 
Fremate.—Antennal club shorter than the funiculus. Pygidium 
more elongate, the punctures smaller and more sparse. Posterior femora 
stouter, spurs of hind tibiz short and stout. Penultimate ventral seg- 
ment with a strongly impressed line near the hind margin, behind which 
the segment is depressed. Last ventral segment sinuate at apex, scarcely 
emarginate. Tarsi not shorter than in the male. 
Variations.—In a series of nine specimens no variations are ob- 
served. The species is remarkably constant in form and color. 
About a dozen specimens of this interesting form were taken at 
Washington during the season of 1888. None of the local collectors 
had ever taken it before, and it was but sparingly taken among the 
hundreds of other specimens. Mr. Schwarz received a single male 
specimen from the mountains of Tennessee, Mr. Alwood saw a specimen 
ina local collection in Virginia, and I saw several specimens in Mr. 
Dury’s collection at Cincinnati, Ohio. The species is therefore probably 
widely distributed, though rare. 
In group characters it would seem at first referable to the /ra/erna 
section of the group, but the large size, very long tarsi, and the marked 
sexual characters refer it rather with ragosa and allies, though the thorax 
is not evidently angulated, and the punctures not nearly so coarse. In 
