18 
[March 
bright on the disk, with a broad, brown hind margin that occupies 
nearly half the wing, from a point on the costa, one-third the distance 
from the apex and to the middle of the inner margin, deeply concave 
towards the apex and with an even edge; the tawny portion taking 
nearly the shape of the wing; nervures black and conspicuous, espec¬ 
ially at the extremity of the cell; the stigma is a black velvety bar in 
a line with the arc. 
Secondaries dark brown, with a tawny spot in the disk near the out¬ 
er angle, cut into four by the nervures; the second from the costa 
largest and oblong; fringe tawny. 
Under side brown^ with a tinge corresponding to the same color above. 
Body covered with greenish hairs; beneath yellowish; palpi yellow¬ 
ish; antennae dark above, yellow-grey below; club velvety-black, with 
a fulvous tip. Female not known. 
Lansing, Michigan, from Mr. Miles. 
Hesperia Logan, nov. sp. (Plate 1, fig. 5.) 
Female. Expands inch. Primaries have the hind margin broad, 
brown, and shaped as in Pontaic.^ slightly dentated on the inner edge; 
within the cell, next the arc, is a rhomboidal tawny spot; the rest of 
the cell, the base and the inner margin brown; a small space without 
the arc is slightly brown; the band on the disk clear tawny, sickle- 
shaped, broad next the inner margin, narrowing rapidly towards the 
apex, curving around the cell and gradually diminishing till it disap¬ 
pears on the costa at one-third the distance from the apex: divided by 
the black nervures into spots. 
Secondaries have the disk bright tawny, making one large spot near¬ 
ly the shape of the wing, and which approaches the edges nearest at 
the outer angle; the margins brown and about one-half the width of 
the hind margin of primaries. 
Under side glossy greenish-yellow; the secondaries immaculate: the 
primaries with a large brown patch next the base; the same color bor¬ 
ders the inner margin and tinges the inner angle. The outer half of 
fringe of primaries brownish, the inn^er the same hue as the wings. 
Body covered with greenish hairs; beneath pale yellow; palpi yel- 
