1864 .] 
397 ^ 
Differs from E. lunatus Say, by the markings being always cinere¬ 
ous, by the face having a silvery-white pubescence, by the labrum, 
antennae, tegulae and legs being always black and clothed with a very 
fine, short, silvery-cinereous pubescence, by the more hyaline wings, 
and by the basal segment of the abdomen above being only narrowly 
margined with cinereous. Among the many specimens of this species 
that I have examined, I find no intermediate grades of variations be¬ 
tween this and E. lunatus Say. 
<). E. scutellaris, Say. ^ 
Epeolus scutellaris, Say, Long’s 2nd. Expedition, ii, p. 355, 9- (1824.) 
“ Female .—Body deep black, densely punctured front with a white 
spot surrounding the base of each antenna; antennae black-brown, three 
basal joints and mandibles rufous; thorax with the collar, obsolete line 
over the wings, dilated posterior teeth and scutel, ferruginous; wings 
dusky on their terminal margin; feet rufous; tergum black-brown; 
two distant bands on the first segment, of which the first is obsolete, 
and the other is interrupted in the middle, second and third segments 
each with a band on their posterior margins, pale yellow; remaining 
bands indistinct. Length from three-tenths to nearly seven-twentieths 
of an inch. 
“ Hah .—Middle States. 
“ Much smaller than the preceding, and about equal in size to E. 
mercatus Fabr., from which it differs by various characters, and par¬ 
ticularly by the much more dilated form of the posterior thoracic teeth. 
Not seen. 
7. E. zonatus, Smith. 
Epeolus zonatus, Smith, Brit. Mus. Cat. ii, p. 257. 9 • (1854.) 
“ Female. Length 4 lines.—Head and thorax black, the antennae, 
labrum and mandibles ferruginous, the face has a little silvery pubes¬ 
cence. Thorax encircled with ferruginous ; the collar, sides of protho¬ 
rax, tegulae and scutellum being red, the scutellum armed on each side 
with a short stout acute tooth; legs ferruginous, the wings fusco-ferru- 
ginous, the nervures ferruginous. Abdomen, the two basal segments 
ferruginous, the apical ones black; the apical margins of the segments 
have fasciae of short white pubescence, usually much interrupted ; the 
extreme base of the abdomen black. 
