THE EARLIEST BUTTERFLIES AT THE WHITE MOUNTAINS OF NEW HAMPSHIRE

Extract

A few years ago a visit was made to the Glen, in the White Mts. of New Hamphire, in the early spring, just as the first tender leafage was appearing (June 2–5), and a report of the thirteen butterflies then found was publishe in Psyche, 1874. vol, 1, p. 13–14, 18–19. Wishing to secure eggs from some of the wintering butterflies abundant in that place, which I then failed to secure from being too early, another visit was made last spring to the same place, and at the same date (June 3–7), as the season was evidently sufficiently advanced to make it practically at least a week later; and so it proved, the vegetation at the Half-way House, at the upper limit of forest growth on the Mt. Washington carriage road, being this spring exactly at the stage at which I found it in the valleys at the previous visit, the difference in elevation being over fifteen hundred feet. The sky was equally sunny in both cases.