Number 41. May 31, 191 7, 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ■ ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Ardor, Michigan. Published by the University 



NOTES ON A COLLECTION OF ODON.VTA FROM 

 SCHOOLCRAFT COUNTY, MICHIGAN. 



By a. F. Combs. 



During the month of July, 1915, the writer was a member 

 of the Bryant Walker Expedition to Schoolcraft County in the 

 upper peninsula of Michigan. The following paper embodies 

 the results of his observations during that time, and is the first 

 of a series of papers on the Odonata of the state. Eventually 

 il is hoped that a comprehensive account of the state fauna may 

 be published. 



The vicinity of the Manistique River offers particularly fav- 

 orable breeding grounds for aquatic insects, as the whole coun- 

 try is cut up by small streams, ponds, small lakes, and oxbow 

 lakes formed by the river, while the river itself, tho it carries 

 a quantity of silt and is stained by the drainage from the ex- 

 tensive swamps, supports such forms as require running water. 

 From these conditions it might be expected that the odonate 



