146 Journal New York Entomological Society, f^'o'- ^i-^- 



that may be due in most instances to the age or condition of the 

 examples. 



5". inferior Smith is not represented in the series now before me. 



.S". plusiiformis Hy. Edw. Ten males and three females from 

 various points in Colorado and Washington. Practically no differ- 

 ences in the markings; but quite some difference in the amount of 

 contrasts. An unusually bright example might readily be referred to 

 vinricina. and indeed my series was mixed. In phisiiformis the ter- 

 minal and s.t. areas are of the same gray color, and the s.t. line is 

 practically parallel with the outer margin. In muricina the terminal 

 area is paler than the rest of the wing, and the inner margin of this 

 pale area forms a very decided inward curve or arcuation. 



S. muricina Grote. Four males and two females, much brighter 

 and more contrasting than phisiiforniis. from which it has been dif- 

 ferentiated above. 



S. hchrcnsiana Grote. Not represented in my collection. 



S. acciirata Hy. Edw. Described as a Pliisia and looks it. I have 

 only one female from Las Vegas, New Mexico. 



S. crythrolita Grote. I was rather proud of my series of this 

 species, containing 13 dl' and 16 ? and meant, after separating out the 

 sexes, to make a series running from almost uniform powdery gray 

 to nearly black ; but after I had made my separation of the sexes 

 there was a hitch in forming the series, until I recognized that I had 

 three species. The type form of crythrolita Grote was fixed by a 

 specimen bearing the author's label, coming from the type material 

 and agreeing also with Hampson's figure and description. Of this I 

 have six males and four females. The males are very uniform in 

 color and appearance, the females differ a little more. In all cases 

 the primaries are pale violet gray, a little powdery, and the median 

 lines are lost. The ordinary spots are more or less darkened, nar- 

 rowly ringed with yellow and always present. The s.t. line is char- 

 acteristic, bi-sinuate, never continuous, not reaching the costa in any 

 case, preceded by a blackish shading which is always interrupted in 

 the middle and tends to become reduced. In the male the onlv varia- 

 tion noted is the tendency to lose all the blackish shadings. Among 

 the females, one example is an almost uniform smoky gray. My ex- 

 amples are from Witch Creek and San Diego, California, and are 

 dated in b^ebruarv. 



