310 LORD WALSINGHAM ON [Feb. 15, 



tends in a strong streak from the base to beyond the middle, and is 

 diffused in the form of ill-defined lines upwards and outwards to the 

 middle of the costa and to the apical margin. In some specimens 

 the costa is touched with whitish on its extreme edge before the 

 middle. Cilia reddish brown. 



Hind wings and cilia very pale grey. 



Expanse 19-21 milHm. 



Twenty-six specimens, Shasta county, California, July 28, 1871. 



EucERATiA, gen. nov. 



Capilli hirsuti. Ocelli nulli. Palpi maxillares nulli. Palpi 

 labiales longe porrecti, hirsute vestiti, articulo secundo supra 

 Jioccoso, tertio basi incrassato, quam secundus paulo longiore. 

 AntenncB pubescentes, articulis alternis aliquid incrassatis. 

 AlcB anticce costa paulum arcuata, amplcB, margine apicali 

 obliqiio, angulo anali subconspicuo. Alee posticce plence, ciliis 

 longis, apice vix acuminata. 

 Head and face rough with tufts of long scales projecting forwards 

 and upwards. Ocelli none ; maxillary palpi none. Antennae pubes- 

 cent, slender ; basal joint somewhat enlarged, the alternate joints 

 slightly thickened by groups of appressed scales above. Palpi 

 straight, projecting three times the length of the head in front, 

 hirsute, with the first joint small; second scarcely thickened, tufted, 

 especially on its upperside, with long bristling scales projecting for- 

 wards ; third rather longer and slightly more slender than the 

 second, enlarged at the extreme base, also roughly clothed, having a 

 tendency to turn outwards as in Topeutis (Zeller). 



Fore wings ample, with the costa shgbtly arched, the apical margin 

 oblique, the apex extended, and the anal angle not well defined. 



EucERATiA CASTELLA, sp. nov. (Plate XXXV. fig. 13, 13«, 

 36, 13c, \M.) 



Capite et thorace albis ; antennis albis, fusco svpra maeulatis ; 

 palpis poj-rectis, hifsutis, albis, fusco adspersis; alis ant ids albis, 

 squamis brunneo-fuscis sparse irroratis, ciliis albis fusco 

 terminatis ; alis jwsticis dilute brunneo-fuscis, ante medium 

 albidis, ciliis albis ; anticis infra dilute brunneo-fuscis, alba 

 marginatis ; posticis infra albidis paulo fuscescentibus. 

 Head, face, and thorax white. Antennae pubescent, white, conspi- 

 cuously dotted above with brownish fuscous beyond the base, tinged 

 with brownish fuscous beneath. Palpi projecting nearly three times 

 the length of the head beyond it, with the first joint small, second 

 joint scarcely thickened, tufted ; apical joint of even size, slightly 

 longer than the second, white, clothed with long coarse scales, most 

 of which, especially at the sides and beneath, are tipped with brownish 

 fuscous, the tuft on the second joint and the apical joint itself 

 having a tendency to turn outv/ards as in the genus Topeutis, Zell. 

 Fore wings white, sjiarsely irrorated with distinct brownish fuscous 

 scales ; cilia white, tipped with brownish fuscous. Hind wings 

 white at the base and about the abdominal margin, shading off into 



