The fossil occurrence of Helophorus arcticus Brown (Coleoptera: Hydrophilidae) in Pleistocene deposits of the Scarborough Bluffs, Ontario
- 1 May 1972
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Zoology
- Vol. 50 (5) , 555-558
- https://doi.org/10.1139/z72-075
Abstract
Fossils of Helophorus arcticus Brown are described from Pleistocene deposits believed to be about 70 000 years old. This is the first record of the species as a fossil in North America. At present H. arcticus is known only from damp tundra regions of the subarctic in Canada, and it is suggested that such conditions probably prevailed in the Toronto region during the deposition of the Scarborough Formation 70 000 years ago. This discovery also points out the vast changes in insect distribution which have taken place during and since the last glaciation.This publication has 1 reference indexed in Scilit:
- An insect fauna from Mid-Weichselian deposits at Brandon, WarwickshirePhilosophical Transactions Of The Royal Society B-Biological Sciences, 1968