4(i biological survey of 



Caenidae 



Caenis Stephens 



C. a mica Bagen. (U. Heath, Aug. 22. 

 C. sp. Duck Brook, July 3 (Spieth). 



BAETroAE 



Baetis Leach 



B. pluto McD. Duck Brook, July 3 (Spieth). 



B. pygaemus Hagen. Duck Brook, July 3 (Spieth). 



B. sp. Bar Harbor, Aug. 2 (Br.). Duck Brook, July 3 

 (Spieth). 



Callibaetis Eaton 



C. amebicana Banks. The Tarn, May 23-June 4; Bar Har- 

 bor, July 8; Great Heath, Aug. 22 (Br.). 



C. hageni Eaton. Bar Harbor, July 1-Sept. 7 (Br.). Great 



Heath, Aug. 22. 

 C. fluctuans Walsh. Aug. 17 (Br.). 

 ( \ ferkugineus Walsh. Bar Harbor, July 29. 



Cloeon Leach 



C. rubropictum McD. Echo Lake, July 4 (Spieth). 

 ( 1 . sp. Echo Lake. 



SlPHLONURIDAE 



Ameletus Eaton 



A. ludens Xdm.? Bar Harbor, May 25 (Br.). 



Siphlonurcs Eaton 



S. typicus Eaton (beeenice McD.). Bar Harbor, July 6 



(Br.). 

 S. mums Eaton. Green Mt., June 10 (Br.). 

 8. quebecensis Prov. June 18 (Br.). 

 S. sp. 



