It was recently my good fortune to spend a very pleasant fortnight–from August 10 to August 24–on Lakes Huron and Superior, cheifly with a view to obtain a thorough rest from work of every description, and to enjoy the pure bracing air and splendid scenery of these inland seas. The greater portion of the time was spent on the steamboats Algoma and Chicors, and as most of the stoppages at the various ports were made at night, I had few opportunities for collecting insects. I remained over, however, for five days on the Canadian side at Sault Ste.

Siivery white; apical half of the anterior wings pale golden; there is a long, pale golden basal streak situated just within the costal margin, and strongly dark margined towards the dorsal margin, and extending to the pale golden of the apacial portion of the wing. In the pale golden portion are four silvery dorsal streaks, all dark margined internally ; the first dorsal and first costal streaks opposite, and both very oblique, and almost confluent in the middle of the wing; second dorsa1 opposite the second costal.