THE CANADIAN KNTOMOLOGIST. 227 



Expanse of wings, 30 mm. Length of body, 9 mm. 



Habitat : Colorado. Type, ^ . Coll., B. Neumoegen. 



This is another of the discoveries of beautiful insects we owe to Mr. 

 D. Bruce. It seems to be a rare species, for Mr. Bruce only caught one 

 last year, and this summer only five specimens, among which one ? , 

 which, as he writes me, tallies in all details with the ^ ^. Its name is 

 warranted by its beauty. 



Notodonta desc/ierei, n. sp. 



Head gray ; prothorax and thorax dark gray and pilose, rimmed with 

 black. Patagiie dark gray with whitish granules and black rims. Thorax, 

 at abdominal juncture, prominently tufted with black. Antennae light 

 brown. Abdomen gray, with a light brown covering on first two segments. 

 Legs gray, very hariy, except tarsi, which are black and have white 

 segments and claws. 



Primaries dark gray with white apical tinges reaching as far as third 

 median vein. Interspaces of costal and subcostal veins marked by three 

 black dashes, the upper one resting on costa, encircling an irregular white 

 costal spot, the latter being the starting point of a transverse sinuate line 

 of irregular whitish spots, terminating on inner margin near angle with a 

 spot, surrounded by black. The basal field, as well as the median inter- 

 spaces of a light brown shade. A black basal dash, edged with silvery 

 white along basal portion of submedian vein. Nerves blackish. Fringes 

 dark gray with black dots at nerval intersections. A black terminal Hue 

 edged with white inwardly. 



Secondaries light gray, shading somewhat darker near apex and anal 

 margin, which latter is heavily tufted. A black shade with minimal white 

 granules at anal angle, shading off towards median veins. Fringes and 

 terminal Hne light gray, turning in anal region into the Jjlack colour of 

 anal blotch. Nerves grayish-brown. 



Below : Primaries blackish-gray from base to beyond discal cell, 

 shading into lighter tints along anterior margin. Apex whitish, and a 

 whitish costal spot above disk. Slight whitish indications of the transverse 

 line. Terminal line well marked. 



Secondaries gray with darker costal field of basal part and dark anal 

 blotches. A suffused transverse white narrow band skirting edge of 

 median cell. Terminal line blackish and prominent. 



