I have read, as all of us have, the review of a book by C.J. Maynard, on our Butterflies, by Mr. W. H. Edwards, and which appeared in the February number of the Canadian Entomologist. Whatever Mr. Edwards writes in trenchant and to the point, so that we have received the impression that Mr. Maynard's book is really not what it ought to be, is not up to current scientific knowledge, and is inferior in its illustrations. There is no more to be said about the book on this head; its publication will probably do very little real good, except perhaps that here and there a reader into whose hands it may chance to fall may have his interest excited in the subject, and so be led to buy a better one, as, for instance, that of Prof. French, to say nothing of Mr. Edward's splendis volumes.

In this second paper on the North American Proctotrupidœ, I have taken up the sub-family Platygasterinœ, comprising, for the most part, small black species, all parasitic in larvæxs belonging to the Dipterous families Cecidomyiidœ and Tipulidœ.

It will be seen that I have recognized in our fauna species in all of the described genera but Iphetrachelus Haliday, and one new genus parasitic on Cecidomyious hickory galls.

I have quoted, Synops. Hemerob., p. 457, as belonging to Pamexis, a new species figured in Seba Thesaur., vol. iv., pl. 86, f. 20. The explanation says, “Color pallide subfuscus, maculis suture fuscis.” I can not here compare a colored copy of Seba's work, nevertheless the figure proves to be a male of a species of Pamexis without antennæ. The figures of insects in Seba are not good; but as the species belongs surely to Pamexis, and is larger than the other known species, and different from them, I wish to draw attention to the existence of a new species of this curious genus.

In reference to two notes on collecting in the June number of your Entomologist, will you allow me to make a few remarks? Entomology is with me a secondary subject, my time being for the most part occupied with another science. Perhaps this has led me to devise means for economizing time and labor more than I should otherwise have done; but the study of insects has great attraction for me, and I spend no little time upon it.