Amongst the several species of greon loopers found on Canadian coniferous trees in July are two which, to the naked eye, appear somewhat similar. These are Nyctobia limitaria Wlk. and Eufidonia notataria Wlk. Larvae of these two, along with that of the other Nearctic species of Eufidonia, i.e. discospilata Wlk., a heath-plant feeder, are herewith described. The larva of E. notataria has been described briefly by Goodell (1, 2).

Say stinkbug, Chlorochroa sayi Stal, is a comparatively new pest of wheat and other seed crops in Western Canada. In the past ten years it frequently has caused severe damage to wheat in many localized areas.

Urbanus doryssus (Swains.)

A fresh specimen of this species was observed feeding on papaya blossoms, X-28-44, at Pharr, Texas, by the writer. Two ♂ ♂ were eventually collected near the same spot by the writer, one III-10-45 and the other III-II-45. These two specimens are the first and only ones collected in the United States.

The use of mechanical methods in control of the eastern tent caterpillar was emphasized in an earlier paper (Sweetman, 1940). That report which covered the five-year period 1936-1940 is now brought up through the season of 1945. The site has changed little since 1940 except for the annual increment of plant growth. The wild cherries are more numerous, and the older trees are much taller. The variation in abundance of tents each year follows that of the surrounding area showing that migration into the grounds occurs continually.

The spiny caterpillars of this butterfly are known as defoliators of snowbrush, Ceanothus spp.; Essig says that during severe outbreaks they feed on other shrubs and on fruit trees and alfalfa. The following records of flights are of particular interest in that no reports of damage by the caterpillars were received during the season of 1945.

The preceding part under this title was published in 1946 (Can. Ent., 77: 186-191). I am here discussing a number of species from the western United States, chiefly from Oregon and California, where they were collected by my friends, Messrs. T. H. G. Aitken, Mont A. Cazier, Kenneth M. Fender and Lawrence W. Saylor, to whom I am greatly indebted for the privilege of retaining the types in my collection. A few additional species were taken by myself in Arizona and Wyoming.

This list of types of genera and subgenera has been complied to aid workers in the family Pipunculidae. Recently several new genera have been erected in this family and some confusion as to genotypes has arisen.

Over a century ago in his memoir on Gorytes, Lepeletier proposed Lestiphorus for the reception of Rossi's distinctive European species Crabro bicinctus. However, very few subsequent authors have recognized it as a discrete generic entity. It has generally been regarded as merely a species group or occasionally treated as a subgenus of Gorytes or some related genus. But Lestiphorus, although small, is indubitably entitled to full generic rank.

Recent tests of the effects of a 5 per cent DDT dust on various household insects in the basement of a cafeteria near Eastview, Ontario, resulted in a high mortality among several species of Coleoptera occurring there.

The species of Coleoptera listed below have been collected since the publication of a previous list (1944, Canad. Ent., 76:163) of Essex County material.

Mr. W. J. Brown, Division of Entomology, Ottawa, has once more obliged by identifying most of the specimens. Identification of the Oberea and Tetraopes species was made by Mr. W. S. Fisher of the United States Department of Agriculture, Washington, B. C.

In a small collection from Georgia sent me for identification by P. W. Fattig of Emory University are representatives of the chilopods listed below. The types of the two new species described are in the author's collection.