396 
[February 
by a line which is very slightly dilated in the middle; remaining bands 
narrower, snbmarginal, entire; terminal segment with an oblique yel¬ 
low lateral spot; feet rufous. Length three-fifths of an inch. 
“ Hah. —Arkansa. On fiowers near the Kocky Mountains. It is 
much larger than E. mercatus F.” 
I have not seen any specimens which answer exactly to the above 
description, but with the exception of the rufous clypeus, and the ab¬ 
sence of the two short medial lines of the thorax, it agrees with E. 
lunatus Say, and may possibly be a bright colored variety of that 
species. 
5. E. donatus, Smith. 
Epeolus donatus, Smith, Brit. Mus. Cat. ii, p. 256, 9 (1854). 
Female .—Head black, densely and finely punctured, interspersed 
with larger punctures on the clypeus, a patch of silvery pubescence on 
each side of the face above the clypeus. Antennae black. Thorax 
black, densely, finely and confiuently punctured, somewhat shining; 
a line on the collar, an irregular mark behind the tubercles which it 
margins posteriorly, two short lines on the disk anteriorly which are 
usually obsolete, the posterior margin of the thorax and scutellum, 
sometimes a line over the wings, the post-scutellum, and a curved line 
on each side of the metathorax, cinereous; a tuft of cinereous hairs 
on each side behind the base of the wings. Wings fusco-hyaline. 
Legs black, having a thin glittering pubescence. Abdomen black, 
minutely punctured, somewhat shining; basal segment margined with 
cinereous, the basal and apical margins interrupted on the disk, the 
apical margins of the second, third and fourth segments cinereous, 
sometimes slightly interrupted on the disk; on each side of the second 
segment there is sometimes a cinereous spot or line proceeding from 
the apical band; the fifth segment with a triangular cinereous patch 
oil each side; beneath black, shining. Length 6 lines. 
Male .—Like the female, except that the fifth and sixth segments of 
the abdomen above have each an apical cinereous band like those on 
the two preceding segments; tibiae and tarsi and the apical margins of 
the ventral segments have a cinereous pubescence. The wings are 
sometimes hyaline. 
Hah. —Conn., N. J., Penn., Del. Coll. Ent. Soc. Phila., and Mr. 
E. Norton. 
