48 PSYCHE [June 
distinct. About one in every six or eight taken is winged; the wings covering all 
but the last three segments of the abdomen. I have taken it commonly at Falls 
Church at the base of tufts of grass in 
moist fields, in Oct. and Nov. I have 
it also from Chesapeake Beach, Md., 
Cambridge, Mass. (Sept., in a marsh), 
and Southern Pines, N. Car., Nov. and 
Dee. (Manee). The Emesodema sim- 
re 2 plictpes Uhler, must be the immature 
stage of B. fraterna, for he says that the 
femur I is clouded with brown, nearly 
white beneath, which fits this species 
Fig. 2.— Barce fraterna, last abdominal segment @d not the B. uhleri; moreover, he says 
yess Ueto ese A. the long spite is tipped with black, which 
is prominent in Bb, fraterna, and barely, 
if at all, visible in the other species. 
EMESA. 
Fabr., Syst. Rhyng. 263, 1803. 
ryy C > e o = 
Vo this genus belong the largest members of the family. They are winged when 
adult, and there is but one generation a year. We have two species, and possibly 
others. 
Emesa longupes De Geer. 
De Geer, Mém. Ins. III, 352, 1773. 
brevipennis Say, Amer. Ent. III, pl. 47, 1828. 
This species is common in the Eastern United States; it occurs on trees, on 
unpainted buildings, on spider webs, ete. It flies at twilight. 
Imesa brevicoaa n. sp. 
This species is similar to E. longipes, but coxa I is a third shorter than in that 
species, hardly twice as long as the head (while in E. longipes it is over twice as long 
as the head); the femur I is also shorter; the tip of the female abdomen has not the 
two processes as strong as in FE. longipes. ‘The legs are marked the same, and the 
wings are of the same length. The whole insect is a little shorter than LE. longipes. 
Krom Los Angeles, Calif. (Hutchinson). 
