92 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



wings loosely scaled, semitranslucent, light brown with concolorous cilia. 

 Abdomen and legs uniformly dark brown. Alar expanse: 25 mm. 



Habitat: Silverton, Colorado, C. P. Gillette, Coll. 



Type: Cat. No. 19249, IT. S. N. M. 



This is the largest described American species of this genus, 

 nearest to /. oregonella Walsingham, but easily distinguished by 

 the pattern. 



Incurvaria itoniella n. sp. 



Labial palpi yellowish white with a few black bristles; maxillary 

 purplish black. Antennae bronzy, blackish brown. Face and head light 

 reddish yellow with a few scattered black hairs. Thorax and forewings 

 unicolored dark greenish brown with strong bronzy reflections, and in some 

 lights golden; cilia bronzy brown. Hindwings dark purple with scattered 

 golden scales around the edges; cilia purplish brown. Abdomen and legs 

 bronzy brown; posterior tibiae with long silky whitish hairs above. Alar 

 expanse: 11 mm. 



Habitat: Kaslo, Brit. Columbia, J. W. Cockle, Coll. 



Type: Cat. No. 19250, U. S. N. M. 



Very similar in size and general habitus to our eastern Eucle- 

 mensia acerifoliella Clemens, but differing generically and in the 

 lighter, more greenish color; it is also somewhat more narrow 

 winged. 



The genus Incurvaria has been separated by Mr. Meyrick (Hand 

 Book 1895) on the antennal ciliation in the male, and some of 

 the European species as /. capitella, have on this ground been 

 placed in the genus Tinea. This is another striking case, where 

 the use of secondary sexual characters has caused curious mis- 

 takes in generic classifications; /. capitella and its allies are acu- 

 leates and hence do not even belong to the same family as tin- 

 genus Tinea; the genera Tinea and Incurvaria may be best sep- 

 arated by the presence or absence of wing aculeation. 



Incurvaria cyanella n. sp. 



Labial palpi golden yellow. Antennae black. Face and head light red- 

 dish yellow. Thorax dark bronzy brown. Forewings dark greenish and 

 bluish bronzy brown overlaid with scattered metallic golden scales; cilia 

 dark bro\vn. Hindwings dark purplish brown with lighter brown cilia. 

 Abdomen blackish brown Legs blackish brown. Alar expanse: 10 nun. 



Habitat: Oak Station, Pa., F. Marloff, Coll. 



Type: Cat. No. 19287, U. S. N. M. 



Very close to the foregoing species I. itoniella Busck, but smaller, 

 darker, more bluish in color and at once distinguished by the 

 metallic golden scaling on the forewings. 



