The rose stem girdler (Agrilus communis rubicola Ab.), a pest of European origin, was first recorded on this continent in 1913. The earliest report of its presence in Ontario was made in 1931 in the Windsor area by Mr. C. S. Thompson, formerly of the Dominion Plant Inspection Service, who found it infesting roses on private grounds. The roses had been obtained in 1929 from a Michigan nursery which had imported them from Holland.

The Cariboo region comprises that section of Central British Columbia between the Fraser river and the mountains of the N. Thompson river, extending northward from Clinton to Quesnel; through it the old Cariboo trail (now a motor road) passes and railway communication with the south is afforded by the P. G. & E. Ry. Its altitude is around 2500 ft. and it consists largely of rolling, wooded country interspersed with numerous lakes; in the southwest in the vicinity of Jesmond, Mt. Bowman, a northern spur of the mountains back of Lillooet, rises to a height of about 7500 ft. The summer rainfall is slight, and the area belongs in the so-called “dry belt”.

For many years the writer has been endeavouring to obtain collections of Odonata from all parts of Canada as a basis for a study of their distriburion.

Preliminary lists have been published for most of the provinces but very little has hitherto appeared on the odonate fauna of Saskatchewan. The nearest approach to a list of the species from this province is contained in an early paper by the writer ('12b) in which records of nineteen species from Saskatchewan are given.

Through the courtesy and co-operation of the authorities of the United States National Museum, I have recently been enabled to examine material and to make genitalic slides of a few species of North American Eupithecias not hitherto available to me for study. As a result the correct relationships of certain species have been ascertained and in this connection the following notes are offered. Included are also descriptions of several apparently new species.

This new genus is apparently more closely related to the genus Dolichopsylla Baker 1906 than to any other known North American genus of Siphonaptera. But one specimen, a female, has been collected; however, it is so distinctive that the description of the genus is warranted.