OCR Text |
Show 1881.] NORTH-AMERICAN TINEID^E. 309 dorsali, dente obliquo ultra medium supra projecto, et margine apicali cum ciliis, dilute croceis: posticis stramineo-albidis. Head, palpi, and thorax yellowish white, the sides of the palpi and the patagia touched with pale reddish brown ; antennae annulated. Fore wings pale canary-yellow suffused with bright purplish brown, except at the costal portion of the base and along the dorsal two thirds of the wing ; the apical margin and cilia beneath the falcate apex also maintain the pale ground-colour, and the dark portion of the wing is incised on its lower edge beyond the middle by an oblique tooth-shaped projection from the pale dorsal space. Hind wings and cilia straw-white. Abdomen and legs whitish grey. Expanse 20-22 millim. Mount Shasta, California, August 1871. This and the two following species belong to the group of which C. dentella, Fab. {xylostella, Linn.), No. 1652 of Wocke's Cat., is the type, and are nearly allied to that species. CEROSTOMA CANARIELLA, sp. nov. (Plate XXXV. fig. 11.) Antennis annulatis; palpis, capite, thorace et alis anticis dilute croceis, labe subanguluta apud medium et ciliis ad apicem fal-catum subcastaneis ; alis posticis cum ciliis stramineo-albidis. Antennae annulated with yellowish white and chestnut-brown. Palpi pale yellowish, slightly tinged with brown at the sides, projecting nearly three times the length of the head beyond it. Head, thorax, and fore wings pale canary-yellow; the fore wings strongly falcate at the apex, having a subangulate and rather diffused pale chestnut-brown blotch on the cell about the middle, often with a few blackish scales about the angle on the middle of its lower edge ; in good fresh specimens a few single pale chestnut-brown scales are thinly scattered over the surface of the pale ground-colour; cilia yellow, tinged at the tips with brownish, especially at the extreme apex. Abdomen, hind wings, and cilia straw-white. Expanse 19-21 millim. Scott's Valley, Lake county, May 18, 1871. Several specimens flying among Symphoricarpus mollis (Nuttal). CEROSTOMA FRUSTELLA, sp. nov. (Plate XXXV. fig. 12.) Antennis annulatis; capite stramineo ; palpis externe brunneis, interne albido-stramineis; alis anticis croceo-flavidis, rufo-brunneo suffusis et partim lineatis (excepto margine dorsali dilute croceo) ; posticis cum ciliis dilutissime griseis. Head yellowish above, paler in front; palpi yellowish white above and on their inner sides, tinged with brown outwardly ; antennae annulated ; the middle of the thorax whitish, the patagia reddish brown. Fore wings pale yellow, suffused and partly streaked with reddish brown, except at the base of the costa and along the dorsal third of the wing, which is pale canary-yellow, and is separated from the darker portion of the wing by a whitish streak along the basal half. The brown shading is most conspicuous along the fold, where it ex- |