Sphex (Ammophila) nigricans. Dahl. Several nests were seen on October 12, 1930, at Pittsburgh Lake, Ill. (Opposite St. Louis, Mo.). The mothers were excavating nests although it was very late in the season. The burrows in the ground were “L” shaped; the neck, one-half inch in diameter by one-half inch long; the pocket at the bottom, one-inch wide by three-fourths inches deep. I found one caterpillar at the bottom of each of the three nests I opened.

Species of suborder Chalastogastra are retained at Washington, identifications being incomplete.

BRACONIDAE.

Identified by C. F. W. Muesebeck, Washington, and by (marked*) G. S. Walley, Ottawa.

In the writer's treatise on the North American species of the genus Aeschna (Walker, '12) the nymph of A. juncea L. was described from exuviae collected by the late Dr. F. Ris at Cierfs, Switzerland. One of the exuviae was accompanied by a teneral imago. A single female exuvia from Nipigon, Ont., very closely resembling the Swiss specimens, was tentatively referred in the same work (p. 98) to A. subarctica Wlk. rather than juncea, although both species were flying at the spot where the exuvia was found.

Specimens of an unknown Anobiid beetle infesting the woodwork of a house in Ontario were submitted to me by Prof. A. W. Baker, Ontario Agricultural College, Guelph, Ontario, for identification. It appears necessary to propose new names, both generic and specific, by which the species may be known.

While working over some specimens of Mycetophilidae in the Cornell University Collection, four new species were found. It seemed well to publish at once descriptions of these eastern forms in order to include them in the keys to appear in the “Diptera of Connecticut.”

A few errors and omissions in the list of Maine butterflies as published in the Canadian Entomologist in August 1934, should be corrected as follows:

Papilio troilus Linnaeus. York Beach (Farquhar).

The following records are based on material collected, for the most part, by Mr. W. E. Whitehead of the Department of Entomology, Macdonald College, McGill University. For the opportunity of examining this material I am indebted to Sir Guy Marshall, F.R.S., Director, The Imperial Institute of Entomology, London.

Among some beetles kindly determined recently for the writer by Dr. H. C. Fall, was found a specimen of the European Staphylinid Deleaster dichrous Grav.