In order to enable future volumes of the Canadian Entomologist to date their commencement from a less awkward time than the middle of a year, as well as for other reasons that it is needless to specify, we have resolved upon spreading the publication of the current volume over the remainder of this year and the whole of the followirg one ; we shall thus issue a number about every six weeks instead of monthly, and begin volume three in January, 1871. The following will be the dates of issue of the remaining numbers of this volume, so far as they can be decided upon beforehand : No. 3, on November 15, 1869; No. 4, on January 1, 1870; No. 5, February 15 ; No. 6, April 1; No. 7, May 16 ; No. 8, July 1 ; No. 9, August 15; No. 10, October 1; No. 11, November 1; No. 12, December 1. In accordance with this arrangement, we have delayed the issue of the present number, as will have been observed, from September 15 to October 1. Contributions for publication should be in the hands of the Editor about ten days before the date of issue of a number, in order to secure insertion in it.

Not a single American species of Hemiteles, so far as I am aware, has as yet been decribed under that generic name as occurrittg north of the West India Islands. Two of Say's Cryptus, indeed, namely, Cr. orbus, found in Indiana, and Cr. tenellus, found in Pennsylvania, manifestly belong to this genus ; and the latter may not improbably be identical with our insect, though his description is insufficient to identify it, and scarcely separates it from Hæmiteles thoracicus, Cresson, an inhabitant of Cuba. In my own cabinet, besides the species that we now have to do with, I have no less than nine undescribed species of this genus that were captured or bred in Illinois, The genus may be conveniently divided into two principal groups, according to the presence or absence of metathoracic thorns ; and of my undescribed species but two belong to the latter category.

The larva of Nemalus ventricosus, alas, too well known under the popular designation of “currant worm,” has been very abundant in this neighbour, hood during the present season. In my own garden it has been a continual fight as to who should have the currant and gooseberry bushes, the worms or their rightful owner. During the early part of summer, anticipating their attack, I was on the lookout for them, and by timely doses of hellebore preserved the foliage with but little damage. In about a fortnight later, having omitted inspection for a few days, I was surprised to find the bushes being stripped again ; and this time the enemy had got so far ahead as to damage their appearance considerably.