On one of the last days of June, 1877, I observed a female pseudargiolus hovering about a flower-stalk of Cimicifuga racemosa, and it occurred to me that here might be the food plant of the summer brood of this butterfly, which I had for years been in search of. And thereupon I captured this female and confined her in a muslin bag upon one of the stalks. Two days after I found several eggs and also young larvæ, which last must have come from eggs laid some days before. This led me to examine other stalks, and I found quite a large number of both eggs and larvæ. The plant is called hereabouts “rattle-weed,” and grows abundantly in the edges of the woods throughout this region.

Larva of Arzama obliquate Grote.–Found April 23rd, under the bark of a dead maple about three feet from the ground, where it had made for itself an oval cavity in the dust.

Head small and black; head and first four segments flattened above Ist segment black, edged with light brown and with a light brown dorsal stripe; remaining segments dull olivaceous brown, slightly pubescent,and having the greasy appearance of an Agrotis larva. No dorsal stripe back of Ist segment; Ist and 2nd segments project laterally over stigmata; immediately below the stigmata on each side is a faint, narrow, brown stripe, below which the color is much lighter. Anal segment with a fleshy fold slightly resembling that of Catocala crataegi.

Notwithstanding the variability of D. varus Grote, of which species D. sesquilinea is stated by Dr. Packard to be the ordinary male form, there can be no doubt that a very interesting species from Maine (prof. Fernald)and Massachusetts (Mr. Roland Thaxter) is distinct from any previously described. In this form the exterior line is without a costal angulation. It may be called Drepanodes Fernaldi n.s. ♀ Larger than the other species, light purplish brown. The two transverse lines composed of broken black lunules shaded with white. A black discal point on primaries. A median diffuse brown shade near the exterior line and continued on hind wings. The exterior line extends straight to costa near apices and is here not angulated; it is continued on hind wings, but merely as a white sub-lunulated line with black pointlets on the veins. Terminal space on fore wings shaded with brown. Fringes on both wings pale. Edge of secondaries brown. Beneath paler than above, sub-irrorate. A common white exterior lunulated line marked by black pointlets on the veins. Discal dots on both wings.

This species is smaller and slighter than argenteomaculatas, and differs from any previously described from our territory by the gilded primaries, which are as brilliant as those of Plusia verruca. Dull lilac or pinkish fuscous. Fore wings falcate, with a fine brown line on submedian fold. Between the subcostal vein and submedian fold the wing is covered centrally with large patches of dead gold. There are two brown costal patches, between which are double pale lilac marks, the inceptions of the transverse lines, of which the outer beyond the outer brown patch is alone continuous, broad, irregular. Some dead gold patches about the discal mark, which is finely margined with brown, pyramidal, bright gilded. Three similar bright gilded, triangulate, brown-edged spots, form part of the subterminal line opposite the ceil. Else the s. t. line is narrow and brownish, broadly margined by dead gold shading on either side. Hind wings pinkish fuscous. with orange fringes. Beneath fuscous, without marks; external margin of primaries touched with orange; the short fringes shaded with orange on both wings.

The following note on the structure of Zimmermani is taken from a MS. paper on the N. Am. Phycidæ which I am preparing for publication. I would be glad of more material in this group from any correspondents.

“Pinipestis (sub-gen. nov.).

Maxillary palpi alike in both sexes, concealed by the porrect labial palpi, which have the third article erect and exceed the front. Ocelli present. Male antennæ very slightly bent at base, where they show slight continuous scale-tufts ; ciliate beneath. Fore wings with veins 4 and 5 running close together at base; these veins are seen to have a separate origin, 5 on the cross-vein close to 4, divaricating at one-third from base. Hind wings 8-veined ; vein 5 running close to 4 at base, but separate and continuous with the discal cross-vein. Head behind with a thick transverse ridge of scales; clypeus with a bunchlike projection of scales centrally.”