LYMNEIDZ OF NORTH AMERICA. 287 
RANGE (Figure 30): Maine west to Iowa and Minnesota, north- 
ern Michigan south to Tennessee. 
Exigua has a wide range, embracing a larger part of the Alle- 
ghanian and Carolinian divisions of the Transition and the Upper 
Austral life zones. To the north and northeast (Michigan and Maine) 
it penetrates the Boreal (Canadian) life zone. A characteristic race 
of the Canadian, Upper Mississippian and Nova Scotian regions. 

Fie. 30: 
RECORDS. 
UNITED STATES. 
Ituinors: In ditches, N. W. end Calumet Lake, Cook Co. (Baker) ; Drum- 
mond, Will Co. (Ferriss) ; Stony Island, Cook Co. (Hood). 
INDIANA: Little Kankakee River, near La Porte, Indiana (Daniels). 
Towa: Bayou below Valley Junction, Des Moines, Polk Co.: pond No. 1 
and pond No. 3 above dam, Des Moines; pond No. 3, old Zoo, Des Moines ; 
pond below Chesterfield, near Des Moines (Van Hyning) Elk Lake, Ruthven, 
Palo Alto Co. (Walker). 
Marine: Aroostook River, Caribou, Aroostook Co.; Caribou Stream, 
Woodland, Aroostook Co. (Nylander). 
MicuicAn: West Twin Lake, Charlevoix Co.; Pere Marquette River, 
Lake Co.; Carlton, Monroe Co.; Alger, Alpena, Charlevoix, Dickinson, Eaton, 
Gratiot, Kent, Lake, Marquette, Monroe, Montcalm, Ottawa, Shiawassee and 
Washtenaw Counties (Walker). 
