236 THE CANADIAN ENTOMOLOGIST. 



than I hour old, and 2 at 6. They were removed 22nd June, and all wcije 

 dead and shrivelled. 



5. Apatura Clytox. Similar exposure to that of Comma, but at 12 

 to 24 hours gave similar results, all being killed. I had reason to expect 

 as much in the case of Comma, as I had in former years lost all or nearly 

 all Grapta chrysalids which were exposed before they had fully hardened. 

 But I thought I would try severe measures once more, relying on obtain- 

 ing further larvae of Comfiia for milder treatment. Unfortunately I could 

 find no more larvje. This species being seasonally-dimorphic, it would 

 seem as if there should be a change of form under these experiments, if 

 tried in a proper manner. 



6. Papilio Philenor. Nine chrysalids, at 6 to 36 hours old, left for 

 23 days on ice, were all killed but one, which gave butterfly unchanged. 



7. Papilio Troilus. One chrysalis exposed 15 days gave butterfly 

 unchanged. 



8. LiMENiTis Ursula. I placed one chrysalis at 4 hours old on the 

 ice and kept it there 13 days. From this came a large $ after 9 days, or 

 at the period usual for this species. This shows some peculiarities which 

 may or may not have been owing to the exposure. One cannot decide 

 from a single example. The Ursulas taken in this region have the metallic 

 spots and the metallic area on disk of hind wing either all green or all 

 blue j and the discal area spoken of is separated from the submarginal 

 green or blue spots by a pretty wide black space, forming a band from 

 costal to anal margin. In this iced example the black band is narrowed 

 to one half that of any other in my collection, and instead of being unin- 

 terrupted, it is crossed next costal margin by three of the discal spots (or 

 in three interspaces), which become confluent with the submarginal spots. 

 The spots and bands are green, except that on one wing the spaces on 

 disk lying between the branches of the median nervure are purplish-blue. 

 The same distinction holds on the under side. 



9. Lycaena Pseudargiolus. On ice 4 chrysahds, 24 hours old, and 

 kept there 23 days. By oversight a nearly mature larva of same species 

 had been shut in with the chrysalids, and had eaten into one of them. 

 But the larva and the other chrysalids were dead. 



