156 THE CANADIAN ENTOMOLOGIST. 



306. M. adjuficta, Bdv. — One specimen at treacle, June 28th, 1895 

 It has lost an abdomen, three wings and one antenna, during a journey- 

 through the mails. 



307. M. circumvadis, Smith. — The type is a 9 , taken here at light 

 on July 2ist, 1900, and is in Prof. Smith's collection at Rutgers College. 

 A $ on July 26th, 1902, is not quite such a fine specimen, and has lost 

 both antennae in a journey through the mails. Three or four specimens 

 were taken at light during 1904, June 30th to July 13th. The species is 

 recorded from Aweme, Man. (June 27th), by Mr. Norman Criddle. Prof. 

 Smith says it is allied to chartaria and defessa. Sir George Hampson 

 has seen a $ and says it is allied to capsu/aris, ininorata and ect)-apela. 



308. M. Taco7na, Strk. — Fairly common some years. June to middle 

 July. The species was described from Pullman, Wash., and Dr. Strecker 

 adds, "Superficially having some resemblance to lilacina and rugosa, but 

 agreeing in detail with neither." Dodii in the West was then standing in 

 some collections as riigosa and may have been intended in Strecker's 

 remarks. It is certainly more like Tacoma than is either Calgary lilacina 

 or Ottawa rugosa, but I had Tacoma standing in a different series from 

 Dodii five or six years before it had recognition as a species elsewhere. 

 It averages larger than Dodii, and has the ground colour of a clearer lilac- 

 gray, especially in the s. t. area. A nearly constant distinctive feature is 

 that in Dodii, a reddish shade runs through s. t. space from the costa near 

 the apex, obliquely towards where the t. p. line meets the inner margin. 

 This is darkest above the subcostal vein and gradually fades out below it, 

 generally vanishing completely ere it quite reaches the inner margin. It 

 is not always present at all below subcostal vein, but there is very rarely 

 any trace of it below the same point in Tacoma. In Dodii the orbicular 

 varies tremendously in size, shape and colour. I have one specimen in 

 which it is quite round, almost pure white, and hirdly more than y^ the 

 size of the reniform. In others it is elliptical, irregular and -/i to 3^ the 

 size. The orbicular in Tacoma varies much less, is more regular in out- 

 line, very slightly oval, more even in colour, and as clear or clearer than 

 the palest part of s. t. area. As a whole the two species are sharply 

 distinct, but occasional specimens require familiarity with the range of 

 variation to determine. 



(To be continued.) 



Mailed April 6, 1905. 



