In a former paper, I have briefly referred to the Peculiarity of nest structure made by the larvæof our large Lepidopterous Nocturnal insects, in order to show that an attempt should be made to separate species on the similarity of form and texture of these structures. No doubt, when Entomology becomes thoroughly studied throughout the Dominion, much of the confusion in our prsent generic classification will be removed by means of investigations into the early history of larvæ and imagines of the many genera.

Figures Nos. 25,26 and 27 represent the caterpillar, chrysalis, and perfect insect of the grape-vine sphinx, Chærocampa pampinatrix. The young larvæ varying in color from green to pale lilac or red, are now (August 1st) very common, and may be easily recognised by reference to the figure: for although the ground-tint of the body may vary.

I Give herewith the conclusion to my experiments with Ajax and its varieties. The Telamonidas larva spoken of in my communication of 27th Feb. (vol. ii., p. 163) as having lived over the winter, on the 1st of April, 1871, produced male Telamonidas(all the rest had yielded Marcellus in 1870). The Marcellus larvæ were mostly lost at the burning of my house in February, but one was saved and yielded Telamonidas female on the 10th of April, 1871.

On the 4th of July I found a number of eggs of this beautiful moth on the evening primrose, Œnothera Lamarckiana. They were found attached to the stalks of the young flower buds; to the sides of the calyx of the flower, and also to the young leaves at their base. The eggs were quite firmly fastened among the long stout hairs with which the cuticle of the calyx and flower stalk is covered.