It has long been known to collectors of Coleoptera that European species unknown to other parts of North America may be taken in the Maritime Provinces of eastern Canada. Some of these species are abundant, and virtually all who have collected in the region have had some experience with them. The region of the Lower St. Lawrence and adjacent parts of the Province of Quebec have also supplied the first North American records of a number of European species. Because these species are of some special interest, I have compiled the list given below.

In entomological investigations it is frequently desirable to use varying temperatures rather than constant temperatures. The apparatus herein described, when installed in a rearing or storage chamber, makes it possible to control temperatures in any desired graph pattern over a period of twenty-four hours, and to repeat the same pattern any desired number of times. This is accomplished by removing the usual adjusting mechanism from a DeKhotinsky-thermo-regulator and substituting for it an automatic adjuster operated by a synchronous electric clock.

For many years the authors have been studying the butterflies of the Riding Mountains and of the Sand Ridge and have found numerous forms and races new to science. In a paper read some time ago at a meeting of the Pennsylvania Academy of Sciences, many of these forms and races were described. To make these descriptions available to more students, Dr. J. McDunnough suggested that we use the “Canadian Entomologist”. All the holotypes will be deposited in the Canadian National Collection and the allotypes in the Carnegie Museum.

Barnes and Lindsey in their monograph of the American Pterophoridae mentioned the fact that they had examined a series of a Platyptilia in the Fernald collection from St. George and St. Paul Islands, Alaska, which was scarcely recognizable as P. pallidactyla Haw., but was placed under this species because of the poor nature of the series.

It was with some surprise that the writer encountered a representative of this rare and, until recently, little known genus, from a locality in south-eastern British Columbia. The specimen in question is a female reared at Ottawa, by officers of the Forest Insect Survey of the Division of Entomology, Irom the cocoon of a Chrysopid beaten from Engelmann spruce, Aug. 26, 1938, by Mr. D. N. Ross of the British Columbia Forest Service, in the vicinity of Bayne's Lake, B. C. The adult parasite emerged in the laboratory, Feb. 20, 1939.