MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 97 



A decidedly luteins siil>tri;iiii;nlar spot extends from tlie base of tlie wing to the inner distinct 

 line crossing tlie wing, which line is situated half way between the base of the wing and the inner 

 side of the median band, this line having been rubbed oft' in the type of irriflhtii. The space 

 between this line and the median band is whitish gray. The broad blackish median band incloses 

 a sinuous linear luteous discal spot, and there is a luteous patch near the internal edge of the 

 wing. The inner edge of the median band is less distinctly sinuous than in the type of irriffhtii, 

 and so is the white outer bordering line, which, however, is more zigzag. The edge of the wing 

 is stone-gray, as in the type of ivrifjhtii, and incloses the usual scalloped dark line, as in the type 

 of wriyhtii. Hind wings as in the tyiie; a dift'use dark band crosses the wing beyond the middle, 

 and a second outer one is parallel to it, but does not reach the middle, and the two bands inclose 

 a white linear si)ot, as in the type. 



The species occurs in northern as well as southern California, and is quite variable. 



G. seveni Edwards. — The single type is a 9 from Soda Springs, Cal. 



The type is much larger than the Sierra Nevada specimen, and well preserved. Antenufe 

 ■with short pectinations. Body and head dark gray. Wings unusually dark; fore wings dark 

 gray on the basal third, with a very small luteous sj)ot on the cubital and internal veins. Media?i 

 band broad and dark, almost black, and not bordered by the narrow scalloped outer line, the 

 wing being suffused with black to the outer edge. A narrow faint luteous linear discal spot. 

 Halfway between the s(>allopcd pale gray line and the outer edge of the wing is a submarginal 

 series of tawny or luteous ])atches. Hind wings just as in the Sierra Nevada example, and 

 venation as in wrighiii. Wings underneath dark and much diffused, the line on the fore wing 

 less sinuous than in the wrightil type. Hind wings with two parallel broad dark bands, just as in 

 the Sierra Nevada specimen of G. u-rujlitii. The shape of the head and the wings is the same in 

 the Californian severa and the eastern form. In both forms the bind wings are nearly the same. 



Var. anmacula. — The following is a description of a type specimen presented by Mr. Hudson to 

 the United States National ^luseuni: Body and fore wings ash gray, basal line black, with a large 

 irregular loop just below the median vein tilled in with luteous scales. Middle line black, sinuous; 

 extradiscal line diffuse, oblique, and sinuous; no luteous median band, this space being ash-gray, 

 with obscure luteous scales near and on inner edge; an indistinct submarginal series of blackish 

 scallops; a very distinct, irregular, reniforni black discal sjiot, tilled in with <listinct luteous scales, 

 so that there are two distinct conspicuous clay- yellow spots in this species; hind wings with no 

 distinct line and no common line beneath. Expanse of wings, 37 mm.; length of body. Hi mm. 



Plattsburg, N. Y., May 10, 1."., I'l, 2:i (d. H. Hudson). Professor French has danhiji from 

 Victoria and severa from Shasta County, Cal. 



G. severa var. slossonUv. — Body and wings pale ash-gray ; the prothoi-acic segment colored as the 

 head, but the rest of the thorax is dark brown, the median thoracic tuft also dark brown. Fore 

 wings black-brown on basal one-flfth, this portion sending out five sharp tooth-like projections 

 along the subcostal, internal, and second anal veins. A broad distinct median oblique band, with 

 irr&gular lobulate edges, and widening on the costa; it incloses a verj^ distinct discal triangular 

 white spot, the apex pointing outward. A submarginal broken row of dark si)ots arranged much 

 as in Gluphisia trilincata. 



Hind wings with no markings, but at the inner angle is a faint short curved dark band, 

 edged externally with white, but not reaching beyond the middle of the internal space. Fiinge 

 coucolorous with the wing, but checkered with small black spots. 



Wings beneath much as in Gluphisia triUneata; the black band is faint, its outer edge indicated 

 •on the costa by a dark spot. Expanse of wings, .38 mm.; length of body, 15 mm. 



I am indebted to Mrs. Annie Trumbull Slosson for the privilege of examining and describing 

 a single remarkable specimen in a perfect state of preservation taken at Franconia, N. H. Mrs. 

 Slosson, uidike many entomologists, has kindly allowed me to partially denude the under 

 side of the wings of her unique specimen, .so that the venati(Hi could be carefully drawn with the 

 aid of the camera. She has determined the species to be new. The species was not to be found in 

 the collections of Mr. Graef or Mr. Neumogen,and ^Ir. Beutenmiiller had not seen it in the Henry 

 Edwards collections, now fortunately in the possession of the American ]Museum of Natural 

 History at Central Park, New York. I had described the form as Ceruridia slossonia; regarding 

 k Mis. 50 7 



