. The Canadian entomologist. Insects; Entomology. 86 THE CANADIAN ENTOMOLOGIST. the leaves, thirteen on the seed-pods, and one on the stem o( the plant. These eggs hatched in about ten days, and the larvte continued to feed until the second instar, when they stopped and hibernated until the following spring. I took a number of rather large of this species in August, and the only one that lived pupated in the later part of the month, and emerged the following spring. It is thus evident that, although the adults fly uninterruptedly from June until September, the species hibernates both i
. The Canadian entomologist. Insects; Entomology. 86 THE CANADIAN ENTOMOLOGIST. the leaves, thirteen on the seed-pods, and one on the stem o( the plant. These eggs hatched in about ten days, and the larvte continued to feed until the second instar, when they stopped and hibernated until the following spring. I took a number of rather large of this species in August, and the only one that lived pupated in the later part of the month, and emerged the following spring. It is thus evident that, although the adults fly uninterruptedly from June until September, the species hibernates both in the pupal and larval conditions, and not improbably also in the egg stage. Apparently larvae coming from eggs laid in the early summer pupate the same year, and hibernate thus, while those hatching later hibernate as larvas. It is possible that some of the last eggs to be laid do not hatch until the following spring, though I did not observe this. A considerable number of the larv?e which I took had Tachinid eggs on them, but by removing these the larvse were reared successfully. I also obtained a Braconid parasite in the spring from a larva which had hibernated. The larvc^e q,{fulla are attended by a small black ant. I ofien dis- covered larv?e by looking for these ants on the food-plant, for the latvse themselves are very inconspicuous. The ants, as has been observed in the case of various Lycaenids, by Edwards and others, obtain a liquid excreted by a gland on the loih body segment of the larva, and in return probably afford the latter some protection. In fact Edward-:]: noted on one occasion an ant driving an ichneumon fly away from a larva. With fulla the Tachinid flies are probably not interfered with by the ants, as the flies lay their eggs on the larvas in the first and second instars, while the ants do not pay much attention to the latter until they become larger. A pair of eversible sacs (Fig. 4) on the iith segment is also made use of by the larvte, either repellin
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