Hybrid Butterflies of The Genus Basilarchia

On August 19, 1910, at Alstead Center, New Hampshire, several females of Basilarchia arch@pus, reared in captivity, were placed in a breeding-cage with males of B. arthemis captured in the neighborhood.The butterflies were fed with dilute honey applied to heads of Prunella and clover.On August 0, a pair was found in copulation, remaining in that state for about half n hour.Afterward the female was removed from the cage nd placed on willow shoots out-of-doors, under a cheese-cloth covering.Every leaf of the willow had been