When the European pine shoot moth was first found in North America in 1914, considerable interest was aroused by the discovery and no less fear regarding the potentiality of the insect as a menace to native forests and pine plantations. As the years went by and the pest appeared to be confined mostly to nursery stock and ornamentals, much of the original interest waned only to be rather suddenly revived by recent reports of widespread damage to certain pine plantations both in Canada and the United States.

In view of the general uncertainty in regard to the species of Perimegatoma Horn, the following notes may assist in the determination of the species.

An effort has been made in the preceding pages to present all the species of Erythroneura that have been described in the Maculata Group as well as a large number of new species. The scutelleris Group is included also because it was found they could not easily be separated on the external characters as given by other writers and the genitalia showed close relation to the Maculata Group. No doubt other species will be found as more intensive collecting is done in various parts of the country.

The following notes are based on material in the Canadian National Collection at Ottawa. A large proportion of the reared material was obtained by Dr. J. McDunnough at Bobcaygeon, Ont. in the course of his studies on the Lepidoptera of that region. His rearings of several species of Haploptilia yielded a number of parasites the habits of which have heretofore been little known in Canada. Other material mentioned below was reared by the writer and by various economic officers of the Entomological Branch staff. The determinations of the lepidopterous hosts of the Bobcaygeon material are by Dr. McDunnough.

In connection with studies on the biology of T. blondeli, condnctec in the years 1926 to 1930 inclusive, at Pender Harbour, British Columbia, red cedar trees were inclosed in cheese-cloth cages with a view to determining the duration of the larval stage. The cages were constructed prior to April 30, 1926, and the emergence of bettles from the trees was recorded.

Length, 5.5 mm. Oblong, elongate for the group, and parallel, with rounded humeri ; much depressed; the surface of the elytra are regular, showing but little evidence of impressions except for the quadrate foveae; in color, cupreus above, black beneath. The antennae are black, with the first joint and the under surface of joints three, four and five, almost white. The palpi are black with the first joint pale.