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Show 314 LORD WALSINGHAM ON [Feb. 15, the wing, which reaches to a pale dirty-whitish dot immediately beyond and below it, situated about the end of the cell, and surrounded by some brownish scales. In some specimens is a faint indication of a second pale discal dot preceding it; and in others the two fuscous dots are almost obsolete. Hind wings very pale greyish ochreous; cilia of the same colour as the wings. Expanse 21 millim. The species occurred at Newville, Tehama county, California, July 5, 1871, and in the neighbourhood of Fort Klamath, in Oregon, at the end of September, also at Old Fort Watson, in Northern Oregon, in April of the following year, but was not abundant. It approaches D. ocellana (Fab.) and D. yeatiana (Fab.), but differs from the latter in colour, and in having the fore wings wider and less rounded at the apex. DEPRESSARIA ARNICELLA, sp. nov. (Plate XXXVI. fig. 3.) Capite subochraceo; palpis subochraceis, articulo apicali annulato; antennis fuscescentibus; alis anticis saturate ochreis, fusco dilute sublituratis, punctis tribus discalibus et nebula subcon-spicua fuscescentibus, costa et margine apicali fusco punctatis, ciliis rufescentibus; alis posticis griseo-sericeis, ciliis rufescen-tibus. Head and palpi greyish ochreous, the apical joint of the palpi annulated with fuscous ; antennae greyish fuscous. Fore wings pale ochreous, more or less suffused and blotched with greyish fuscous; three rather fuscous discal dots, two about the basal third of the wing, of which the upper one is nearer to the base than the lower, and one towards the end of the cell; between them lies a slight greyish fuscous cloud, sometimes reaching to the costa; the pale basal patch is not very clearly defined, but extends above the cell along the basal third of the costa; the costal and apical margins diffusely dotted with greyish fuscous. Cilia rosy reddish. Hind wings shining grey, with rosy reddish cilia. Expanse 22 millim. Five specimens, bred from larvae feeding on Arnica angustifolia (Vahl), on Mount Shasta, California, August 1871. Allied to Depressaria adspersella (Kollar), but without the distinct black costal dots of that species. DEPRESSARIA KLAMATHIANA, sp. nov. (Plate XXXVI. fig, 4.) Capite griseo; palpis griseis, articido apicali fusco annulato; thorace griseo ; alis anticis rufo-griseis,plaga basali ad medium costa? antice producta albo-grisea, postice subrufo marginata, punctis duobus discalibus nigris erectis et punctulo albido apud finem cellulce, ciliis rufescentibus ; posticis albido-griseis, dilute rufescentibus. Head grey; palpi grey, annulated on the apical joint with fuscous ; antennae pale reddish grey. Fore wings reddish grey, with a whitish grey basal patch pro- |