Several years ago it occurred to me that a knowledge of the earlier stages in the lives of some of our Diurnal Lepidoptera might possibly be arrived at by obtaining eggs from impregnated females in captivity. My experiments began with the Hesperidæ as offering the greatest probability of success. As many females as could be procured (beaten ones preferred, as the likelihood of their impregnation was greater) were confined in separate boxes some with glass tops admitting right. others darkened. My success was greater than I had anticipated, but none attended the use of boxes where much light was admitted. whether the failure in the latter case was really due to the admission of light, I am not prepared to say ; the number of glass-covered boxes used was not proportionally large nor was their use long continued.

The genus Theridionconstruct beautiful silken nests for the protection of their eggs. I have collected what I take to be the nests of three species in Canada. They are generally found under the bank of decayed forest trees. Another which I found on an old fence at Quebec, although not constructed of silk, its form, in my opinion, is sufficient to class it among the architecture of Theridion. One of these nests resembles that of Theridion variegatum, Walck., of Europe.

I notice in the Entomologist, No. 4, some remarks on Melitæa phaeton. I think there is something exceptional in the habits of this species, and I hope the observations of your correspondents may give us light.

On 1st May, 1868, one of my young friends in this neighbourhood brought me eleven chrysalids of phaeton, part of which he had found suspended to fence rails, He reported the caterpillars as crawling along the rails, and that he had tried to bring me some of them, but before he could reach me (living four miles distant), all that he had taken had changed to chrysalids. I directed him to search for the food plant.