Ide (1935) has studied the various instars in the development of the nymph of Ephemera simulans Walker, but does not state the length of the life cycle. Neave (1932) decided that in Lake Winnipeg species of Hexagenia, a genus very closely related to Ephemera, took two years to complete the life history cycle. The length of the life cycle and the rate of development of the species of Ephemera have been discussed but never satisfactorily settled. The present paper attempts to answer these questions with respect to Ephemera simulans in Lake Wawasee.

It is the purpose of the writer, in this paper, to describe two apparently new species of Histeridae and, in addition, to review the American species of the subgenus Paralister. The followiiig species is named in honor of Dr. C. H. Seevers, to whom I am indebted for numerous favors.

While working over long series of the various forms of P. smintheus, con- tained partly in the Canadian National Collection and partly loaned for study from various sources, I came across two male specimens, received in exchange several years ago from R. F. Sternitzky of San Francisco, and collected at Castle Lake, Siskiyou Co. Calif., a rather isolated locality at an altitude of about 6000 ft. in the mountains opposite Mt. Shasta to the west, and close to Mt. Bradley. As these specimens showed several unusual characters I at once got in touch with Mr. Sternitzky and other California collectors and was able to secure a good series for study; these specimens had apparently all been collected by Messrs. L. Martin and W. B. Davis and were recorded by the latter (1932, Bull. S. Calif. Acad. Sci. XXX, 93) under the name of sminthcus var. magnus Wgt. As these additional specimens show in the main the same distinguishing features that had been noted in the original two, I believe that a good race is indicated, and, in spite of the fact that 1 have been recently rather critical of certain European authors for establishing races of smintheus on inadequate characters, 1 venture to describe it,taking much pleasure in naming it after the enthusiastic collector from whom the specimens were first received.

It is proposed to offer a series of papers, based primarily on the material collected by Professor E. H. Strickland of the University of Alberta at Edmonton.

Chelynia nitida (Cresson). This genus of parasitic bees has over twenty species in North America, the majority from the Pacific Coast region. There are two closely allied species described from females, black with cream-coloured abdominal bands. For some years I have had in my collection a male from Tolland, Colorado, July 1915, at flowers of Frasera, collected by L. A. Kenoyer, determined by me as C. nitida (Cress). I now receive a very similar but distinct male from Professor E. H. Strickland, collected by O. Peck at Beaverlodge, Alberta, July 6, 1931. I conclude that this must be the genuine C. nitida, and the Tolland one the undescribed male of the related C. idahoensis Swenk.

A recent study of the male genitalia of the Lycaenidae of North America, made while the author was attending the University of Colorado, Boulder, Colo., showed several interesting points, especially within the subfamily Lycaeniuae or “Coppers.”

In working over my Phyllophaga of the lanceolata-group recently, the present new species was found; although very distinct from lanceolata the following nevertheless resembles it so markedly at a casual glance that it is difficult to pick it out in a series.

The writer is not aware that observations on the exceedingly interesting oviposition habits of Phlepsius decorus O. & B. have ever been published. A single female of this species was captured on a sunflower plant at Webster Groves, Mo., June 30, 1933. It was placed in a celluloid, cylinder cage enclosing the terminal bud and young leaves of a half-grown sunflower plant where it began feeding at once.

Looking at the map, I have often wondered what bees might be found in those great northern regions of Alberta and Saskatchewan, from which few collections have been seen. Professor E. H. Strickland has sent me numerous species of Andrena from the region about Edmonton and thence southwest to Lethbridge. But he has also included two species obtained in the far north, in a latitude about the same as that of the southern tip of Greenland. They are quite different from the more southern species, and so far as I can see, they have not been described. It would thus appear that there is a distinctive northern Andrena fauna, probably of few species.

Libellula quadrimaculata L. is a holarctic dragonfly which exhibits gregaricus and migratory behavior. “Immense swarms of this species have been recorded in different parts of Europe cn many occasions” (Tillyard) but such flights have not often been recorded in North America. On June 26 a large flight was observed by R. D. Bird at Brandon, Manitoba in a residential district at the south end of town. The location is thickly planted with Manitoba maple trees which reach a height of thirty to thirty-five feet. To the west and south are severa1 sloughs where the dragonflies might have bred but none of them are within a mile and most of them considerably farther. The day was hot and sultry with a maximum temperature of 85°. A violent thunder storm accompanied by hail passed just to the south in the evening. There was a light west breeze. The flight was first semen at 6.00 p.m.