Vol. XXVl] ENTOMOLOGICAL NE\VS. IIQ 



BIBLIOGRAPHY. 



The following titles include all of the lists of Michigan Lep- 

 idoptera known to the writer. Many scattered references to 

 individual species taken in the state occur in the literature but 

 are omitted here. 



ADAMS, C. C. 1908. Annotations on Certain Isle Royale Inverte- 

 brates. An Ecological Survey of Isle Royale, Lake Superior. Report 

 of the State Board of Geological Survey of Michigan for 1908, pp. 

 267-277. 



NEWCOMB, W. W. 1904. Some notes chiefly on the scarcity of 

 Michigan Rhopalocera in 1903. Ent. News, 15 : 204-206. 



IBID. 1912. Check-list Michigan Lepidoptera. I. Rhopalocera (But- 

 terflies). Fourteenth Report Mich. Acad. Sci., 14:266-230. 



IBID. 1913. Check-list Michigan Lepidoptera. II. Sphingidae (Hawk 

 Moths). Fifteenth Report Mich. Acad. Sci., 15:213-214. 



PETTIT, R. H. 1901. Insect and Animal Life on the Upper Penin- 

 sula Experiment Station. First Report of the Upper Peninsula Ex- 

 periment Station for the year 1900. Michigan State Agricultural Col- 

 lege Experiment Station, Bull. 186, pp. 28-42. 



RUTHVEN, A. G. 1905. Spiders and Insects from the Porcupine 

 Mountains and Isle Royale, Michigan. An Ecological Survey in 

 Northern Michigan, prepared under the direction of Chas. C. Adams. 

 Report of the State Board of Geological Survey of Michigan for the 

 year 1905, pp. 100-106. 



WOLCOTT, R. H. 1893. The Butterflies of Grand Rapids, Michigan. 

 Can. Ent., 25: 98-107. 



Sympetrum corruptum, a Dragonfly, at a High Altitude (Odon.). 



I am taking the liberty of sending you a dragonfly which I thought 

 might be of interest on account of the altitude at which it was taken. 

 I was giving a course in biology at the summer school of the State 

 University and one of my pupils, Miss Rosamond Little, of Limon, 

 Colorado, took this specimen when we were ascending Arapahoe Peak, 

 July 18, 1914. It was a surprise to us to find a dragonfly at this alti- 

 tude (13,000 ft.). It was doubtless carried up by the strong wind cur- 

 rents from one of the subalpine lakes below. Though a common spe- 

 cies, I thought that the altitude record might be worth while. KM s 

 WORTH BETHEL, East Side High School, Denver, Colo. 



[The specimen sent by Mr. Bethel was a female. There is a record 

 by Dr. Henry Skinner of this species at 11,000 feet, at Silver Lake, 

 Colorado. ED.! 



