1. Pezomachus Pettitii. N. sp.– ♀ .–Head piceous-black, face rufo-piceous, the middle longitudinally prominent; marrdibles fuscous; antennæ longer than head and thorax, pale ferruginous, dusky at tips; thorax nearly as long as abdomen, piceous-brown, paler laterally and beneath; nodes subequal; legs entirely piceous-brown; paler abdomen ovate beyond first segment, shining piceous-black; first segment narrow, slightly dilated behind the lateral tubercles which are not prominent, apical margin pale; sometimes the heas, thorax and abdomen are entirely piceous-black,except the pale band at apex of first segment which is always conspicuous in this species; ovipostor short, about as long as first abdominal segment. Length .14–15 inch.

This genus approaches Gelechia, but not so nearly as Anarsia, Parasia,&c., the hind wings being sublanceclate, and not emarginate beneath the apex, and having a different neuration. Dr. Clemens describes four species. only one of which, H. chalcofrontella, is known to me. Gelechia glandulella, Riley, belongs here. The genus is divisible into two branches.

A. In which the median vein of the hind wings gives off one branch before the transverse vein and a furcate branch behind it, and the curved apical branch.

A common species of Hesperia in central Alabama, and that I do not find described by authors, is one that I call Syricthus communis. It is plentiful from early spring to autumn, and must be several brooded, but I have not found the larva.

The male is a little smaller, ans the white checkered spots are altogether larger and more numerous, than in the female. The ground colour of the wings is a brownish black, and longer bluish white hair spreads from the base of the forewings over the inferior portion of the primaries, and from the base of the hind wings downwardly without touching the abdominal margin

A few months ago, I spent sorne time over the rich collection of drawings by Abbott, now in the British Museum. Thinking that some of his memoranda may not be unacceptable to the readers of your magazine. I transcribe the substance of what is written on those butterflies which occur in the North as well as in the South, no copy of the others having been taken. The botanical names of the plants have, in most cases, been inserted in the MSS. by some subsequent student; those which bear the initials A.W.C., are due to the kindness of Dr. Chapman.