120 



cell; 5 obsolescent from near middle of discoccllulars; 6, 7 from upper angle; 

 8 anastomosing with cell near base only. 



Scotogramma is a very "weak" genus, containing forms possibly of sepa- 

 rate ancestry. The above description is based largely upon Hampson but with 

 corrections, mainly in the nature of the front. 



S. suhmarina, the genotype, possesses a front only slightly rounded out, 

 about one-fourth the width of the eye, roughened, with a corneous plate below 

 it. This is absolutely the same as densa and megcera referred by Hampson 

 to Polia (which has a smooth shining front). 



S. orida shows a trace of a lump in the center of the frons indicating its 

 close relationship to Craterestra; S. defessa with a similar genitalia does not 

 possess the lump; while the front of 5*. gatei shows a raised inverted V in the 

 center, below which the frons is very strongly excised, with a strong corneous 

 plate below it. 



5". fervida shows an indentation on the front making a nearly heart-shaped 

 prominence. 



S. trifolii and allies including S. morana show the barest trace of a raised 

 central ridge, strongly excised below and produced to the corneous plate. 

 The front S. trifolii is variable, depending on the strength of the central ridge. 

 When this ridge is strong an almost heart-shaped prominence is produced, 

 allying this group of Scotogramma to Cardepia. 



S. francisca, also must be placed within Scotogramma rather than Polia 

 (Hamp.) possessing the front rounded out about one-fourth the width of the 

 eye and very rough, excised to a corneous plate below. Stretchii probably is 

 its only ally. 



The species belonging to this genus have been so scattered and generally 

 misidentified ; and some are so closely allied that a revisional paper is necessary. 

 Pending this paper, which the authors hope to soon complete, the following new 

 species and forms of Scotogramma are published in order that the names may 

 be available. 



Scotogramma fervida race proxima nov. 



Maculation as in S. fervida, paler, the deep brownish or reddish ground 

 color of S. fervida being replaced by brownish-gray. 

 Genitalia: identical with S. fervida. 



Besides the types there are a pair of specimens from Colorado 

 (Bruce) in the Barnes Collection which the authors are inclined to 

 place here. 



Type localities and number and sexes of types: Holotype $, Vineyard, 

 Utah, 6 June 1918; Allotype 5, Eureka, Utah, 9 May 1910; 5 5,99 Paratypes 

 from Stockton, Vineyard and Eureka, Utah, various dates April, May, June, 

 August, (Tom Spalding) ; 1 ? Paratype, Beaver Valley, Utah, Aug. 



