THE CANADIAN ENTOMOLOGIST. 241 



PRELIMINARY LIST OF THE MACRO-LEPIDOPTERA OF 



ALBERTA, N -W. T. 



BY F. H. WOLLEY DOD, MII.LARVILLE, ALTA., N.-W. T. 



(Continued from page 230.) 



373. Cosmia discolor. Walk. — {pakacea, Esp., of North American 

 authors, in error.) Common in 1903, S ct Aug. 31st to Sept. 23rd; ?, 

 only one observed, Sept. 7th. A single specimen only {^) taken previ- 

 ously, in 1895. A few during 1904. Treacle. 



374. C. punctire?ia,S\m\\\ (? ^infumafa, Grt.). — Common in 1903, 

 in about double the numbers of discolor; $ c? Aug. 8th to 22nd; 9 $, 

 common, Aug. 7th to Sept. 5th. A k\v specimens in 1899 and 1904. 

 Treacle. 



[Note. — C. paleacea, Esp, has probably never been taken in N, 

 America.] 



The above synonymy is merely tentative, as I dare not risk any defi- 

 nite reference without a personal inspection of types. I only purpose for 

 the present to try and make clear my reasons for claiming that we have 

 two North American species which have long been confused with, but are 

 distinct from, the European /a/i?<?^va of E'^per. The dates given above are 

 for 1903 only. The earliest dates represent absolute first appearances, 

 and the latest are fairly indicative of the duration of each. 



Of discolor I have under examination ^2 ^ $ and 7 ? 9 , of which 

 2 ^ (^ are from Kaslo, B. C, 3 (J , 4 9 from Cartwright, Man., 3 (^ , i 9 

 from Aweme, Man., and a specimen without abdomen, but apparently a 

 9 , from Franconia, N. H, The balance are Calgary specimens. Expanse 

 of males, one 38 mm., the rest 40 to 45 mm. Females 44 to 47 mm. 

 Colour from a pale straw-yellow to rosy, orange or ferrugineous, with 

 generally more or less of a smoky suffusion, but this is never quite uniform 

 and does not tend to obscure the maculation. The t. a. line forms an 

 obtuse, though ^i^67/(?r^//v distinctly pointed 2.Vi^t in submedian interspace. 

 It is often scarcely larger than a right angle. The discoidal spots are 

 distinctly, often (piite contrastingly, paler than ground colour, the orbicular 

 immaculate, the reniform occasionally so, but often with a smoky shading 

 on its lower border, where the central transverse shade of the wing touches 

 the junction of veins 4 and 5 with the cross-vein at the end of the cell. This 

 shading may sometimes be traced throughout the length of the reniform 

 on the cross-vein, but very rarely tends to form a dark spot on its lower 

 edge as it does in punctirena and paleacea. The secondaries are very pale 



July, 1905. 



