NOTES ON THE TORTRICIDÆ

Extract

At the time when my Catalogue of the Tortricidæ was published, I was inclined to believe that Cacœia transiturana Walk., and C. obsoletana Walk., were the same species, for they were taken in the same localities, and only females of the former and males of the latter species were to be found in collections.

Prof. Forbes has recently sent me two examples for determination, which he bred from two lots of leaf-rollers on the strawberry, in Illinois, and from each lot he obtained males and females, all the males being obsoletana, and all the females transiturana. We may, therefore, consider the question settled by Prof. Forbes, and these two insects are only the two sexes of our species, which should be known as Cacœcia obsoletana Walk.