6 University of Michigan 



in Schoolcraft County in 1917 by the writer. It appeared to 

 be quite common. 



Strymon melinus Hbn. The writer took one specimen on 

 Squaw Island, Charlevoix County, in 1919. 



Incisalia polios C. & W. Taken in Schoolcraft and Mackinac 

 counties. This butterfly has been taken near the Michigan 

 boundary in Indiana, but its discovery in the Northern Penin- 

 sula was a surprise. 



Cafterocephalus palacnion Pall. Found in considerable 

 abundance in Mackinac County. 



In addition to the published records for Douglas Lake by 

 Welch and for Whitefish Point by McAlpine, the only other 

 list of Michigan Heterocera known to the writer is of Sphingi- 

 dae by W. W. Newcomb in the Report of the Michigan Acad- 

 emy of Science, 191 3. which includes 29 species. Only three 

 species are noted by Welch from Douglas Lake, and five by 

 McAlpine from Whitefish Point, all of which occur in Dr. 

 Newcomb's report. The present list includes eight species of 

 Sphingidae, two of which, Sineriu\thiis cerisyi Kirby and 

 Hacmorrhagia gracilis G. & R.. represent records for Michigan. 



In comparing the present list of moths with those for 

 Douglas Lake and Whitefish Point, surprise is occasioned by 

 the comparatively few species that are common to the three 

 regions. From Douglas Lake there are 127 species, of which 

 35 belong to the Tineoidea. From Whitefish Point there are 

 129 species, of which 32 are Tineoidea. In the present list 

 are 211 species, of which 21 are Tineoidea. Combining the 

 three lists, there are 357 species, of which ^2 are Tineoidea. 



Because of the great difficulty in the determination of spe- 

 cies of the Tineoidea for the average student, the number of 

 species of this group included in any list is a relatively small 

 percentage of the species collected, unless it is possible to 



