Hydrophilidae 269 



2851 C. blanchardi Horn. Olcott, Jl-Sep (Dt, Rich) ; E. Aurora, Jl, Sep, 



common (Dnd) ; Westfield, May (Not) ; Oliverea, Sep, Ds (Not) ; 

 Woodland, Oct (Ds) ; Windsor, Je (Not) ; Cayuga L. Basin (Rich) ; 

 Watkins Glen (L&B) ; Van Cort. Pk. (AM) ; LI: Babylon (AM). 



2852 C. lacustris Lee. Axton, Je (M&H) ; Buffalo (Z&R) ; E. Aurora, Aug, 



common (Dnd) ; Cayuga L. Basin (Rich) ; Cortland Co, Jl, common 

 (Dnd) ; Schoharie (Not) ; NYC (L&B) ; SI, Mar (L&D). 

 C. vindicata Fall. SI, type locality. 



Helocombus Horn 



2853 H. bifidus Lee. Cranberry L, Jl (H) ; Mooers, Sep (Not) ; Buffalo 



(Z&R) ; E. Aurora, Jl-Sep, common (Dnd) ; Cayuga L. Basin (Rich) 

 Ringwood, Je-Jl (Dt, Rich) ; Cortland Co, Jl-Sep, common (Dnd) 

 West Pt. (Robn) ; White Plains, Ap 21-May 18 (Sq) ; NYC (L&B) 

 SI, May, Jl (L&D). 



Laccobius Erichson 



2854 L. agilis Rand. Newport, Je (Yg) ; Syracuse, Ap, on clay bank (H) ; 



Mooers, Sep, Sodus Pt, Je (Not) ; Buffalo (Z&R) ; E. Aurora, Aug, 

 common (Dnd) ; Livingston Co, Dec (Lee) ; Westfield, May (Not) ; 

 Cayuga L. Basin (Rich) ; Cortland Co, Jl, common (Dnd) ; Oneida Co, 

 May, Jl, Clms (Dt) ; Windsor, Je (Not) ; Schoharie (Not) ; Suffern 

 (AM); Albany, Je (Yg) ; NYC (L&B); SI (L&D). 



Chaetarthria Stephens 

 2859 C. atra Lee. Westfield, May (Not); Cayuga L. Basin (Rich). 



SUBFAMILY SPHAERIDIINAE 

 PHAENONOTUM Sharp 

 2864 P. estriatum Say. NYC (L&B). 



Sphaeridium Fabricius 



2867 S. scarabaeoides L. Axton, Je (M&H); Potsdam, Je-Aug (Houghton); 



Syracuse, May, on cattle dung (H) ; E. Aurora, Aug, common in ma- 

 nure (Dnd) ; Pike, May (NYS) ; Castile, May, Brad (Flet) ; Cayuga 

 L. Basin (Rich) ; Ithaca, May (Houghton) ; Windsor, Je (Not) ; 

 Catskills, Jl (Pears); West Pt. (Robn); V/est Farms (Sf) ; SI, 

 May-Je (L&D) ; LI: E. New York, early May (Sf, Ds) ; Rockaway 

 Beach, Wyandanch (Ds). 



2868 S. bipustulatum Fab. E. Aurora, Aug-Sep, common in manure (Dnd) ; 



Cayuga L. Basin (Rich) ; West Pt. (Robn) ; LI: Brooklyn, May, Shoe 

 (AM); E. New York, May (Sf). 



CercYON Leach 



2869 C. littoralis Gyll. SI, Je 5 (L&D); LI: Rockaway (L&B); Long Beach 



(L&B) ; Stony Pt., Sep (Winters) ; Coney L (Horn). 

 2873 C. unipunctatus L. N. Fair Haven (Rich) ; McLean, Aug (Dt, Rich) ; 

 Windsor, Je, Schoharie (Not) ; Ramapo, Je (Ds). 



