REVISION OF THE OECOPHORIDAE — CLARKE 181 



Alar expanse, 18-21 mm. 



Type. — In the United States National Museum. 

 Type locality — Kaslo, British Columbia, Canada. 

 Food plant. — Artemisia sp., yarrow. 



Distribution. — Northeastern and Western United States and Canada 

 from the Atlantic to Pacific. 



United States records 



California: Shasta Retreat, Siskiyou County, 2 S $, S 9 9 (July 1-7). 



Maine: Bar Harbor, 4 $ $ (24-VIII-35; 26-IX-36, A. E. Brewer). 



Massachusetts: Worcester, $ (2-VIII-1902). 



New York: Ilion, 5,299 (2-3-IX-ll, H. McElhose). 



Oregon: Rogue River, Josephine County (VI-1872, Walsingham). 



Canadian records 



Alberta: Nordegg, S $ S (16-18-IX-1921, K. Bowman), 



British Columbia: Kaslo. 



Manitoba: $ (lO-VIII-1905, L. E. Marmont) ; Rounthwaite, 9 (lO-VIII-06, 



L. E. Marmont). 

 New Brunswick: Fredericton, $ (22-VII-35, A. E. Brower). 

 Nova Scotia: Round Hill, $ (28-VII-1935, F. C. Gilliatt). 

 Ontario: Ottawa, 3 S $ (30-VII-07, ll-VIII-1905, C. H. Young; 17-VII-1933 



[reared from Yarrow] C. H. Young) ; Trenton, S $ $ (9-IX-ll, 5-IX-04, 



5-IX-12, Evans). 

 Quebec: Meach Lake, 9 (16-VII-1902, C. H. Young). 



Eemarhs. — The specimens I have placed under this name show con- 

 siderable variation in coloration, but all have one character in com- 

 mon, white head and thorax. The variation in the color of the fore 

 wings is of no value in distinguishing this species, and, further, the 

 color forms cannot be separated on genitalia. 



The only North American species with which alienella might be 

 confused is art&misiella., to which it is very closely related, but the two 

 may be easily distinguished on characters of the anellus, and artemi- 

 siella lacks the white head and thorax so characteristic of alienella. 



The European eirueriteTla has the thorax white as in alienella., but the 

 two are easily distinguished by their genitalia. 



DEPRESSARIA ARTEMISIELLA McDunnongh 



Plate 35, Figukes 196, 196a ; Plate 47, Figuee 278 



Depressaria arfanisiella McDunnough, Can. Ent., vol. 59, p. 271, 1927 ; Check list 

 of the Lepidoptera of Canada and the United States of America (Part 2, Mi- 

 crolepidoptera), No. 8402, 1939. — Gaede, in Bryk, Lepidopterorum catalogus, 

 pt. 92, p. 273, 1939. 



