190 Journal New York Entoomlogical Society. [Vol. xm. 



line tending to become obscure. There is no basal streak, but the dagger mark is dis- 

 tinct in every specimen ; usually it extends outwardly from the inner portion of the 

 t. p. line ; but it may be extended a little inwardly as well. The ordinary spots are 

 of good size but tend to an irregularity in form, the orbicular becoming elongate to 

 the extent of fusing with the reniform. The ground color of primaries is whitish 

 gray, powdered with black scales so as to give an impression of thin scale covering, 

 less marked in the femaie than in the male. Secondaries in the male are whitish 

 with a diffuse extra-median dusky line ; in the female with a fuscous or yellowish 

 tinge. 



Expands: 2.00—2.40 inches = 50-60 mm. 



Habitat: Denver, Colorado, in July; Glenwood Springs, Colo- 

 rado, July and August. 



Eight examples in good condition and evenly divided as to sex. 

 One pair is from Denver and were received years ago, probably from 

 Mr. Bruce ; the others are from Dr. Barnes. In 1S98, with only one 

 pair at hand, I believed this to be a local variation ; comparing the 

 specimens in Dr. Barnes' collection last spring he declared his belief 

 that they were specifically distinct ; a belief which I now share after 

 closer comparison with additional material. 



Acronycta similana, new species. 



Ground color a blackish powdery gray, like a dense black powdering over a 

 whitish base. < Irbits of the eye and base of antennce white, head and disc of thorax 

 otherwise tin- darkest portions of the insect. Primaries with a slender black basal 

 streak, forking at the t. a. line which is indicated at the Costa and on the inner mar- 

 gin. T. p. line continuous, lunulate in part, blackish, preceded by white shadings. 

 Preceding the line in the submedian interspace is a more diffuse dark shading, through 

 which a slender black streak crosses the t. p. line, forming a dagger mark. Fringes, 

 whitish, narrowly cut with blackish. Orbicular obscure, narrowly blackish ringed. 

 Reniform a blackish blotch. Secondaries white with blackish sparse powderings, 

 veins narrowly fuscous. Beneath, whitish with black powderings, each wing with a 

 vague exterior line and a blackish discal spot. 



Expands : 1.75 inches = 44 mm. 



Habitat. — Chicago, 111., June 15, Mr. A. Kwiat. 



At first sight suggests a suffused fopuli; but the line of variation 

 does not run that way in Acronycta, and though there is only one 

 good male before me, Mr. Kwiat informs me that several others have 

 been taken. I therefore prefer to consider this a good species at 

 present. 



Acronycta sperata, race speratina, new. 



A series of 10 males and 2 females from Colorado shows some 

 interesting differences from the type, albeit none departs for a consid- 



