S7 



Corneoc;/clas polita Sterki. 



Joliet, Will Oo. (Handwerk) ; Illinois River, Havana, Mason 

 Co. (State liaboratory). 

 Voriicorycliix pit)tct<(t(t Sterki. 



Lilycasii (Jreek, Will Co. (Handwerk). 

 Vonu'ocyclas pf<»ctaii! sliiipJcr Sterki. 



Joliet, Will Co. (Ferriss, Handwerk). 

 C(inic<i<-(/clas ropcrl Sterki. 



-loliet. Will Co. (Handwerk, Sterki). 



Corneocijclds roiandata Prime. 



Northern Hlinois (Marsh). 

 Corneocycla.s sargenti Sterki. 



Hlinois (Sterki) : (Jedar Lake, Lake Co. (State Laboratory). 



Cnrneocyclan scutellata Sterki. 



Lake Michigan, near Chicago, Cook Co. (Baker); Huntley, 

 McHenry Co. (Ferriss): .loliet, Will Co. (Handwerk): Fo.\and 

 Pistakee lakes. Lake Co.: Lake Michigan, Cook Co. (State Ijah- 

 oratory ) . 



Corneorydas splendidula Sterki. 



Lilycash Creek, Will Co. ( Handwerk ) : Sand and Cedar lakesi 

 Lake Co. (State Laboratory). 



Coi'iieucyclas variabilis Prime. 



Lake Michigan, Cook Co. ( Baker) : Cook Co. (Baker, Jensen ) : 

 Kankakee River (Ferriss): Du Page Kiver (Gault): Lily- 

 cash Creek, Joliet, Will (Jo. (Handwerk); Winnebago Co. 

 (Hinkley); Mercer Co. (Marsh); Canton, Fulton Co. (Nason); 

 Fulton Vo. (Wolf); Pistakee, Sand, Cedar, and Fox lakes. 

 Lake Co. ; Quiver Lake, and Hlinois Kiver, Havana, Mason Co. ; 

 Thompson's Lake, Fulton Co. (State Laboratory). 



Corneoeyclas virgin lea Gmelin. 



Cook Co. (Baker) ; Kankakee P»iver (Ferriss); Joliet, Will 

 Co. (Ferriss, Handwerk); Lilycasii Creek, Will Co. (Hand- 

 werk) ; Little W^abash Kiver ( Hinkley i: Winnebago Co. 

 (Marsh). 



Corneoeyclas icalkeri Sterki. 



Joliet, Will Co.; Du Page Kiver (Ferriss): Lilycash Creek, 

 Will Co. (Handwerk). 



