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Show 1880.] LORD WALSINGHAM ON NEW TINEID;E. 83 is slightly larger than the female, and has much the appearance of a So/enobia, especially when slightly worn. Expanse, tf 18 millims., 2 16-17 millims. Near San Francisco, M a y 19th, 1871. 1 have several specimens of this species, of which the females are in better condition than the males. One, or perhaps two other unicolo-rous species of Incurvaria were met with in May and June of the following year in Oregon ; but I shall not venture to describe them until I can be more certain that they do not belong to some of the numerous European species. Genus MICROPTERYX, Hiibner. Two species only of this genus have, as far as I am aware, been described from North America; and of these one only is mentioned in Chambers's " Index to described Tineina," in the ' Bulletin of the United-States Geological and Geographical Survey,' 1878. This is Micropteryx pomivorella, Pack. (Rep. Mass. Ag. Soc. 1870, Am. Nat. vi. p. 685). The other is Micropteryx luteiceps, Walk. (Cat. Lep. Het. xxviii. p. 494), from Nova Scotia, a good and distinct species. To these may be added the following species from the Western States:- MICROPTERYX PARDELLA, sp. nov. (Plate XL fig. 11.) Capite hirsuto ochreo ; antennis fuscis; alis anticis subpurpurascenti-cupreis, litura dorsali apud basin et maculis duabus post medium aliquando confusis, cum ciliis apicalibus ceneo-flavidis, posticis cupreis. Head bright ochreous, roughly clothed. Antennae dusky, rather coarse in the male. Fore wings purplish cupreous, with two conspicuous brassy-yellow spots beyond the middle ; the upper of these, which is the largest, is obliquely quadrangular, reaching the costa along its upper edge, and sometimes blended with the lower and smaller one, which is slightly beyond it and contiguous to the dorsal margin at the anal angle. Before the middle, touching the dorsal margin, and reaching more than half across the wing, is an irregular-shaped spot of a similar colour, blending by means of a yellowish intermediate shade with a small similar spot at the base of the wing. The cilia at the apex and apical margin are brassy yellow, at the anal angle cupreous. Hind wings cupreous. Abdomen dusky. 6*. Expanse 10 millims. Five specimens, taken on the borders of the forest of " redwood" (Taxodium sempervirens) near the coast, in Southern Oregon, at the beginning of June 1872. MICROPTERYX AUROSPARSELLA, sp. nov. (Plate XI. fig. 12.) Capite subgriseo; antennis brevibus, cinereo-fuscis ; alis anticis purpureis, squamis aureo-metallicis creberrime conspersis, posticis purpureis. Head rough, greyish. Antennae short, less than half the length 6* |