THE CANADIAN ENTOMOLOGIST 425 



Proceedings of the Entomological Society of British Colum- 

 bia. — March, 1917. No. 10. Systematic Series. Victoria, 

 1918. 31 pp., 4 pis. 



The following articles appear in this number: 

 Presidential Address: E. H. Blackmore. Pp. 4-10. 

 Notes on the Lepidoptera of the Northern Okanagan: W. D. 

 Downes. Pp. 11-13. Notes on a small collection made by the 

 writer in this district. 



Notes on the hibernation of some larvce and the movement of 

 Boreiis on the snow: J. Wm. Cockle. Pp. 14-15. Boreus cali- 

 fornicus was observed to appear on the surface of the snow shortly 

 after each fall. They come up through the snow, but do so gradu- 

 ally, following up each fall as it occurs, and always keeping as near 

 the surface as the temperature will permit. 



Notes on Geometridce new to British Columbia. — E. H. Black- 

 more. Pp. 16-20. Six species and eight varieties new to British 

 Columbia are recorded. Illustrated by two plates, the first show- 

 ing varieties of Xanthorhoe defensaria, recently described by Mr. 

 Swett, the second 8 other forms belonging to various genera. 



Fossil Insects, with special reference to those of the Tertiary 

 Lake deposits of the Similkameen Valley, B.C.: Alfred E. Cameron. 

 Pp. 21-29. A brief sketch of the general subject of fossil insects, 

 with notes on a collection of 73 specimens, made by Mr. L. M. 

 Lambe, of the Dominion Geological Survey, in the Tertiary Lake 

 deposits of the southern Interior of British Columbia. These 

 were studied by Handlirsch, the eminent authority on fossil insects, 

 and the results published in vol. II of the Contributions to Cana- 

 dian Palaeontology (Geol. Surv. Can., 1910). The collection is 

 believed to be of early Tertiary age on account of the absence of 

 many families not known before Cretaceous times and the presence 

 of a relatively large number of Diptera, particularly of the Bibionid 

 genus Penthetria, which at present is almost restricted to tropical 

 and subtropical regions. A few other forms have a similar signifi- 

 cance. The paper also contains a general account of the geological 

 record of insects. 



In Memoriam. Tom Wilson: R. C. Treherne. Pp. 30, 31; 

 with portrait. 



December, 1918 



