On April 24th two ♀ ♀ of this month were found resting on the ground within a cluster of Sumach-brush, at Wooside, Long Island, N. Y. Their bright yellow colour had faded to pale ochre.

Eggs were deposited from April 24th to 28th, only during the night. According to circumstances they are secreted within the fissures of the leaf-buds and narrow crevices of bark, or into the folds of decaying leaves of the food-plant. In the first case the nearly elliptical eggs are fgastened erect, close together, in a single row; when attached to a broader surface they are arranged in small regular patches or rows, but deposited lengthwide, the next one always overlapping the preceding one with its, blunt, micropylar end.