60 
Psyche 
[March 
adhesive layer present. Chorionic sculpturing was evident but the 
specific type was not determined. 
References Cited 
Berner, L. . 
1940. Baetisea rogersi, a new mayfly from northern Florida. Can. Ent. 62: 
156 160. 
1955. The southeastern species of Baetisea (Ephemeroptera: Baetiscidae). 
Quart. J. Fla. Acad. Sci. 18: 1-19. 
Burks, B. D. 
1953. The mayflies, or Ephemeroptera, of Illinois. Ill. Nat. Hist. Surv. Bull. 26: 
1-216. 
Chaffee, D. L. 
1978. Life history and ecology of Baetisea bajkovi Neave, in Beech Fork ot 
Twelvepole Creek, Wayne County, West Virginia (Ephemeroptera: Bae¬ 
tiscidae). Unpub. Masters Thesis, Marshall Univ., Huntington, W.Va. 
48 pp. 
Dao.gy, R. H. 
1945. New species and previously undescribed naiads of some Minnesota 
mayflies. Ann. Ent. Soc. Amer. 38: 373-396. 
Edmunds, G. F. 
1960. The mayfly genus Baetisea in western North America. Pan-Pacific Ent. 
36(2): 102-104. 
Hamilton, D. A. and D. C. Tarter. 
1977. Life history and ecology of Ephenterella funeralis McDunnough 
(Ephemeroptera: Ephemerellidae) in a small West Virginia stream. 
Amer. Midi. Nat. 98(2): 458-462. 
Hu.senhoff, W. L. 
1970. Key to genera of Wisconsin Plecoptera (stonefly) nymphs, Ephemerop¬ 
tera (mayfly) nymphs, Trichoptera (caddisfly) larvae. Res. Rep. No. 
67(3): 18-37. Department of Natural Resources, Madison, Wisconsin. 
Hubbs, C. L. and A. Perlmutter. 
1942. Biometric comparison of several samples, with particular reference to 
racial investigations. Amer. Nat. 76: 582-592. 
Lehmkuhl. D. M. 
1972. Baetisea (Ephemeroptera: Baetiscidae) from the western interior of Can¬ 
ada with notes on the life cycle. Can. J. Zool. 50(7): 1015-1017. 
McDunnough, J. 
1932. New species of North American Ephemeroptera 11. Can. Ent. 64: 
209-215. 
Minshai.l, J. N. 
1967. Life history and ecology of Epeorus pieuralis (Banks) (Ephemeroptera. 
Heptageniidae). Amer. Midi. Nat. 78(2): 369-388. 
