234 THE CANADIAN ENTOMOLOGIST 



line, expanding abruptly into a large, white blotch, within which 

 the parenchyma is to a large extent consumed. Cocoon oval, 

 browliish, ornamented with a few whitish globules. Larvae col- 

 lected June 20 (San Bernardino Mts.); July 26 (Glacier Point, 

 Yosemite), at which time they were nearly full grown, produced 

 imagos in about two weeks. 



Closely allied to A. strigosa, from which it differs by having 

 the transverse lines broken and less distinct and a little more 

 irregularly placed. 

 Ornix spiraeifoliella, n. sp. 



Palpi grayish white, face grayish white, tuft of gray and 

 whitish scales intermixed, antennae gray, faintly annulate. Thorax 

 and fore wings uniform shining seal brown; a white line on each 

 side of the thorax is continuous with a broad, white basal streak 

 above the fold to one-fifth; base of dorsum narrowly and indis- 

 tinctly white; from one-third of costa a very oblique costal streak 

 narrowing below costa into faint line, then expanding in the middle 

 of the wing, where it meets, almost at right angles, the apex of a 

 less oblique streak from the middle of the dorsum. A second 

 slightly oblique spot at the middle of costa; somewhat oblique 

 narrow costal and dorsal streaks at two-thirds meeting in the middle 

 of the wing; following them a pair of inwardly oblique streaks. 

 A large triangular, white costal spot lying chiefiy in the cilia just 

 before apex, is more or less distinctly divided into two by a gray 

 streak; opposite it a white spot in the terminal cilia; cilia else- 

 where concolorous with wing; extreme apex of wing slightly 

 darker than ground colour. Hind wings and cilia gray. Legs 

 gray, banded with white. 



Expanse 6.5 mm. 



Locality. — Field, B.C. 



Type in author's collection. 



The larva mines the underside of leaves of Spircea sp., making 

 a much wrinkled mine in which the parenchyma is entirely con- 

 sumed; in the breeding jar the larva on leaving the mine, folded 

 the leaf inwards with upper surfaces together; later made a fold 

 on to the underside in the usual way; cocoon in a folded edge of 

 the leaf. Larva collected August 22; moth the following spring. 



A very distinct species, belonging in the group of guttea, 

 kalmiella and precio sella. 



