The matter offered for consideration in this paper deals entirely with one phase of the rearing of Chelonus annulipes Wesm., a larval parasite ovipositing in the egg of the European Corn Borer, Pyrausta nubilalis Hubn. This phase, the effect on the percentage of successful parasitism, of the age of the host eggs at the time of attack, is one of the more important factors determining the success or failure of laboratory rearing and distribution of this species.

The white female of mendii Edw. without the typical burnt-orange color. Green of under sides, common character of black border maculation and rose tinted fringes and antennae as usual. The cell spot on the upper side of the secondaries is cream color and beneath it has the usual silver center.

The following additions and corrections bring my “Check List of the Macrolepidoptera of Alberta” up to date. The changes in the Eupithecias are based on Dr. McDunnough's revision which appeared in the “Canadian Entomologist,” Vol. 61, p. 59.

The first extensive contribution to a knowledge of the anthomyid flies of North America was made by Francis Walker in 1849, when he published the records of fifty-five nominal species in his list of dipterous insects in the British Museum.

On June 12th, 1932, while collecting along a roadway running through a large swampy area at Lanoraie, P. Q., on the north side of the St. Lawrence River and about forty miles east of Montreal, I obtained two specimens of the above genus, which on comparison with allied species could not be matched, these were later submitted to Dr. J. McDunnough at Ottawa, Ont., who kindly examined them for me and found that they did not seem to fit in with any of the species known to him but due to their rather worn condition it was suggested that I try to obtain some better specimens another year before making any definite determination of them.

Of the usual elongate oblong form, about 2-2/3 times as long as wide, moderately convex; color black with faint greenish lustre, base of antennae, tarsi, and in the male the apex of the front tibiae dull rufous. Pubescence thin, not concealing the derm, consisting of sparse subrecumbent fulvocinereous hairs abundantly intermixed with suberect black setae over the entire surface; pronotal and elytral marginal fringe of longer erect black hairs which are not at all recurved. Integuments polished throughout.

The “List of the Coleoptera of the Southern California Islands—” published by the senior author in 1897 (Can. Ent. 29, 1897, 233-244) was the result of more or less sporadic collecting upon the Channel Islands by several parties, few of them trained collectors of insects.