THE CANADIAN ENTOMOLOGIST. 153 



"Moth I^ook." The types of all the last three mentioned forms are at 



Washington. Whether they really represent three species is an open 



question. I can see nothing in the figure oi segregata to separate it from 



Ci\\g^ry gussat a, and Sir George Hampson,who has both, as well as negussa, 



in the British Museum, or at any rate has seen the Laggan form and has 



the iwo oi\\Qv?,, comxAe.ra segres;ata 2inA gussata io be the same species. 



Not having seen the Laggan form personally, further comment upon it 



would be out of place. JVegussa, which was described at my instigation, 



is practically ^«.f5a/« without the black or blackish markings present in 



that species as a basal streak, in the cell, before the s. t. line, and as a 



dash connecting t. a. and t. p. lines below the discoidal spots. The forms 



which when collecting them, I used to look upon as probably distinct, 



used to be not uncommon in the early spring in the above mentioned 



locality, but having changed my place of abode to ten miles further west, 



where I have never met with either, I have been unable to make special 



trips for them at the right season, and have not sufficient material to 



enable me to form anything like a decisive opinion. I have left 2 f^ ^ 



and I $ gussata, indifferent specimens, and t, S 6 ^'""d 299 negussa, in 



almost perfect condition. Negussa looks to me a slightly broader winged 



species (?), in which the black is sometimes represented by dark chocolate 



brown, but seems very variable, and in some there is no trace of any dark 



markings whatever except in the reniform. I have a suspicion that a long 



series would show that the dark brown markings, when present,, had a 



tendency to darken into black, which might make a separation of the forms 



very difficult. Prof. Smith's examination of the genitalia shows nothing 



against the suggestion. Dr. Dyar in his Kootenai list records segregata 



from Kaslo, B. C, and suggests ^Xx^.^. gussata is a variety of it. 



292. M. neoterica, Smith. — Described from AVinnipeg. Common, 

 end June and early July. One specimen, in fine condition, on Aug. 4, 

 1893. The western representative oi detract a. Prof. Smith says (Journ. 

 N. Y. Ent. Soc, XL, No. i, p. 16, March, 1903) "?ieoierica looks like a 

 small detrada with some minor differences in type of maculation. When 

 the genitalia of the $ $ are compared these differences are enormously 

 increased, though there is no change in type." I have detrada from 

 Louisiana, Mo.; Chicago; and New Brighton, Pa. In the Kootenai list, Dr- 

 Dyar seems to imply that the western prairie iieoterica is darker than 

 eastern detrada. Li my two series, though the colour difference is not 

 strongly marked, the reverse is the case. Detrada is a little larger and 

 has somewhat of a smoky suffusion throughout. Neoterica has a much 



April, I905. 



