THE CANADIAN ENTOMOLOGIST. 11 



shading in the female. Fringes white. Beneath, white with a smoky 

 disc on primaries, costal region powdered on secondaries, a smoky 

 terminal line on all wings. 



Expands 28-33 mm. = i.i 2-1.32 inches. 



Habitat : Stockton, Utah, in October. Four examples, two of each 

 sex, and none of them good, are at hand from Mr. George Franck. 



The species belongs with the 4daitata series ; but is not especially 

 well marked and recalls the perso7iata form of pitychrous. It is best 

 placed near 4-dentata, and I am not sure that some specimens so marked 

 will not prove referable to this new form. 



The antennee of the male have the lateral processes well marked and 

 the bristle tufting long. 



Carneades tronellus, n. sp. — Ground colour white with a yellowish 

 tinge, ranging from faint lemon to creamy or even very pale luteous ; the 

 deeper shades in the females. Head and thorax concolorous, vcstiture 

 rather thin, long, patagia not marked. Primaries, in the males almost 

 immaculate, the only obvious mark being a somewhat diffuse blackish 

 spot at the end of the cell, representing the reniform. On close examina- 

 tion, scattered darker scales or slight shadings indicate the maculation 

 which is obvious in the female. In the latter sex the primaries are more 

 or less powdery and all the normal maculation is traceable, albeit in a 

 fragmentary fashion, nor all of it in any one specimen. Basal line 

 marked by black scales on costa and median vein. T. a. line geminate, 

 the inner line is usually marked on the costa only, broken into imperfect 

 interspacial lunules, as a whole a little outcurved. T. p. line geminate, 

 inner line narrow, broken, feebly crenulated, blackish, outer line a vague 

 shading : the course as a whole well curved over the cell and a little 

 incurved below. A dusky costal patch in the s. t. space contrasts a little 

 with the somewhat paler apex. Terminal space a little dusky and thus 

 indicating a somewhat irregular terminal line. Secondaries white in both 

 sexes, in the female with a faint trace of narrow extra-median line. 

 Beneath white, primaries with a yellowish tint, practically immaculate in 

 both sexes. 



Expands 32-37 mm. = 1.2S-1.50 inches. 



Habitat : Stockton, Utah, in October. Three ^ and three $ , all 

 more or less rubbed or otherwise imperfect, from Mr, George Franck. 



The species is allied to citricoior, Grt., but is much lighter in colour 

 and in the ^ not nearly so well marked, On the other hand, in the 



