Rev. Cyrus Thomas, in his Acrididæ of North America, page 132, says: “There are no permanent characters by which to distinguish alcoholic specimens of Œdipoda corallipes, Haldemanii, paradoxa and rugosa from each other.” He therefore considers them the same. Probably Œ. discoidea might be considered as another as another variety of the same. This much named grasshopper is abundant in Nebraska from the middle of June to about the middle of August.

Eyes large and close together on the vertex. palpi, base of tongue and large basal joint of the antennæ, head and upper surface of the thorax, clothed with long blackish hairs, darker than the fore wings are, except at their base. The antennæ are more than twice the length of the wings and silvery white, the basal third dotted above with blackish. Wings and legs rich dark brown, changing with the light to green, blue, violet, bronze and golden.

The species of Homoptera stand in need of a revision. They are usually but partially and confusedly named in such collections as I have had access to. With regard to the generic title, its acceptance is only provisional. Two species, Phacocyma lunifera Hübn. and Phaeocyma fluctuaris Hü., are unknown to me. The descriptions hitherto published in this genus are difficult to use for identification ; no comparative characters are given, no analysis of the lines entered upon.

In coitus 26 are 4 species, 3 of which are put in Myrina Fab., one of the genera of the Lycaeninæ, and 1 in Euselasia Hüb., of the Lemoniinæ. But the coitus Euselasia is in the other Tribe, and third Stirps of same, the Napaeæ.

In a collection sent by Mr. Belfrage from Bosque Co., Texas, are 15 generally fresh specimens of this genus which i have carefully examined. The type of hydromeli ♂ is numbered 527 (violet label). the ♀ 246 (red label). The orange dots following the fuscous blotches of the subterminal line are less evident in the male, and at the base of the wing the orange powdering is less prominent. I am inclined to consider seven specimens, two males, five females, captured from May 3rd to May 21st, as typical.

On the 14th May last I found several eggs of archippus on milk weed. These hatched on the 17th inst. on the 19th all had passed first moult. on the 21st all had passed second moult. Onthe 22nd two passed third moult. On the 25th these two passed fourth moult, and were one inch long. They continued to grow till the 29th, when they measured 1.8 inch, and in the morning had fixed for chrysalis.