12 PROCEEDINGS OF THE ACADEMY OF [Part I 



triangular brush of scales beneath and above, laterally' compressed, 

 sharp-edged in front, brush horizontally truncate at apex; third 

 segment slender, acute, seeming to arise from center of the brush of 

 second, visible portion about one-third the length of the second. 

 Maxillary palpi short, appressed to tongue, third segment equaling 

 in length the two preceding segments. Posterior tibiae clothed 

 with long hairs above, and rough spreading long scales beneath. 

 Fore wings with large tufts of raised scales; lb furcate at base, 

 2, 3 and 4 about equidistant, 2 from near end of cell; 2 and 3 arising 

 perpendicular to lower margin of cell, curving outward and running 

 straight to termen; 5 nearer 4, 7 and 8 stalked, 7 to costa almost 

 at apex, 11 from before middle. Hind wings 1, elongate-ovate, 

 cilia 1; 3 and 4 connate, 5-7 parallel, 5 nearer 6. 



Epicalliina quadrimaculella Chambers. 



Amongst rocks, near Going-to-the-Sun, on St. Mary Lake, July 20- 

 21. All of the specimens were taken flying in the sunshine at sun- 

 rise, and none were seen later than 7.30 A. M. 



Epicallima dimidiella Walsingham. 



Two Medicine Lake, July 15; Going-to-the-Sun, July 18 and 21. 

 Flying actively only in early morning; several taken flying in com- 

 pany with E. quadrimaculella. 



Borkhausenia haydenella Chambers. 



Two males and one female of this species were collected, one male 

 at Two Medicine Lake, July 15, the other two specimens on the 

 cliffs on Goat Mountain above Going-to-the-Sun Chalets, July 18. 

 The female has the wing more densely dusted with white than the 

 male, and the transverse spot at the basal third large and more 

 clearly defined. 



ETHMIIDAE. 

 Ethmia albistrigella Walsingham. 



Two Medicine Lake, July 16; Granite Park, 6500 feet, July 25. 

 Collected near plants of false forget-me-not, Lappula floribimda, 

 which may possible be the food plant. 



GLYPHIPTERYGIDAE. 

 Simaethis fabriciana var. alpinella Busck. 



St. Mary, July 18; Canyon Creek, 5500 feet, July 23, in openings 

 in the forest. 



Choreutis per nivalis n. sp. 



Head and palpi whitish, scales of tuft fuscous towards tips. Basal 

 half of fore wing light brown, with a broad straight pure white 



