The effect of a violent hailstorm on Camnula pellucida Sc. was noted at 2:15 P. M. on July 6, 1930, at a time when enough instruments were on hand to make a few records. The area was an observation station on the open range in Chilcotin, British Columbia, at an elevation of 3,400 feet; range cover was slight, consisting of a closely cropped, overgrazed turf of Poa running to an alkaline patch of Distichlis.

In Manitoba Melanoplus mexicanus mexicanus (Sauss.) is usually most abundant in areas of light soil. In such areas the bulk of the eggs are, as a rule, widely distributed in either cropped or recently reverted fields. Concentrations of eggs, when they occur, have commonly been confined to ridges of drift soil. During the fall of 1938, however, some of the heaviest concentrations of this species ever recorded for the province were discovered, not in these locations, but in woodland pastures of heavier soils in and near that portion of Lang's Valley occupied by the Pembina River. The oviposition sites, in fact, were so atypical that they resembled egg beds of Camnula pellucida Scud. rather than deposits of mexicanus eggs.

In April, 1939, a trial was made of feeding the honey-sugar-agar mixture, formula 3, devised by Holloway (1939) for feeding adult parasitic insects. The test was made with the laboratory propagated Microcryptus basizonius Grav., a parasite of conifer-feeding sawflies. The routine food used in this work is seeded raisin, in addition to water, as reported by Green (1938). An initial investigation indicated that the parasites preferred the prepared food to raisin and that they devoured it avidly.

While studying some of the smaller coccinellid beetles a method of mounting the genitalia has been developed which can probably be applied to many other groups with slight modifications.

Wilson (1930) has given a somewhat similar method for removing the genitalia from the beetle without the complete destruction of the specimen and mounting them in cardboard rectangles.

In the course of collecting several nests of Polistes fuscatus Fabricius and P. fuscatus var. pallipes Lepeletier (Hymenoptera, Vespidae), six were found to be highly parasitised by Polistiphaga arvalis Cresson. The female Polistiphaga normally deposits from two to six eggs either on the Polistes larva or in the cell with the larva (oviposition has not heen observed).

In my revision of the North American Eucosminae (Bull. 123. U. S. Nat. Museum, p. 172, 1923) I applied the generic name Exentera Grote to a small group of closely related species including improbana Walker (=cressoniana Clemens) and spoliana Clemens. I did this upon the assumption that, in the main, Fernald and others had correctly identified the Grote species. Although I had gone over the Fernald collection at Amherst, Mass., I did not see the Grote types, and assumed they were in the British Museum and so stated in the revision (p. 174).

When checking over recently our species of the Eucosmid genus heretofore known as Exentera Grt. but which must now be called Pseudexentera Heinr., I came across two females, bred from Carya ovata by our field officer, Mr. W. L. Putman, which on genitalic characters appeared to belong to an undescribed species.

The eastern and forest tent caterpillars are native insects and have been recognized as pests of forest trees and shrubs since colonization of thi country by the early settlers (Swaine, 1913; Baird, 1917; Baerg, 1935; Wadley, 1938). The eastern tent caterpillar becomes conspicuous in the spring about the time the leaves of wild cherry appear and thereafter for about a month.