Hydrophilidae 265 



SUBFAMILY HELOPHORINAE 

 Helophorus Fabricius 



2739 H. tuberculatus Gyll. Buffalo (Z&R) ; SI, Jl 19 (L&D). 



2740 H. inquinatus Mann. Mooers, Sep, Sodus Pt., Je., Schoharie (Not). 



2743 H. lacustris Lee. Syracuse, Ap, flying (H) ; Buffalo (Z&R); E. Aurora, 



Jl-Sep, frequent in brooks (Dnd) ; Cayuga L. Basin (Rich) ; NYC 

 (L&B). 



2744 H. obscurus Lee. SI, Je (L&D). According to Winters this should replace 



lacustris. 



2745 H. nitidulus Lee. E. Aurora, Williamsville, Clarence, Jl-Aug, common 



(Dnd) ; Cortland Co, Jl-Aug, common (Dnd). 



2746 H. linearis Lee. Cranberry L., Je 23 (H) ; Syracuse, May, in cedar and 



sphagnum bog (H) ; E. Aurora, Jl, scarce (Dnd) ; Cayuga L. Basin 

 (Rich); Ithaca, May-Sep (Dt). 



2748 H. granulans L. Cayuga L. Basin (Rich). 



2749 H. obsoletesulcatus Mots. "NY." 



2750 H. lineatus Say. Newport, Je (NYS) ; Cranberry L., Je 23 (H) ; Mooers, 



Sep (Not) ; Syracuse, Ap-May, in pond (H) ; Buffalo (Z&R) ; E. 

 Aurora, Aug, scarce (Dnd) ; Schoharie (Not) ; Ithaca, Jl-Aug (Dt) ; 

 Albany, Ap (NYS); Karner, May (Yg) ; West Pt. (Robn) ; NYC 

 (L&B) ; SI, Jan, May-Je (L&D). 



H. viridicollis Steph. Cayuga L. Basin (Rich). 



SUBFAMILY HYDROCHINAE 

 Hydrochus Leach 



2754 H. scabratus Muls. Cayuga L. Basin (Rich) ; West Farms (AM) ; NYC 

 (L&B) ; SI, May, Aug (L&D) ; LI (Muls). 



2758 H. inaequalis Lee. Cranberry L., Je 23 (H) ; West Pt. (Robn) ; NYC 



(L&B) ; SI, Ap-May, Sep (L&D) ; LI: Cold Sp. Harb., Aug 6 (H). 



2759 H. excavatus Lee. Mooers, Sep, Sodus Pt., Je (Not); E. Aurora, Sep, 



frequent in brooks (Dnd); Cayuga L. Basin (Rich). 



H. laticollis Not. Mooers, Sep (Not). 



2760 H. rufipes Lee. LI (Winters). 



2761 H. subcupreus Rand. Cranberry L., Je 23 (H) ; Buffalo (Z&R) ; Pike, Jl 



(NYS) ; Caledonia Cr., Dec (Lee) ; Westfield, May (Not) ; Albany, 

 May, Kinderhook, Je (NYS) ; NYC (L&B) ; SI, Ap (L&D) ; Rocka- 

 way Beach (AM) ; Cypress Hills, May, Zab (AM). 



2762 H. granulatus Blatch. LI (Winters). 



2764 H. squamifer Lee. Mooers, Sep (Not) ; Buffalo (Z&R) ; Pike, Jl (AM) ; 



Cayi:iga L. Basin (Rich) ; McLean, Aug (Dt) ; LI (Lee). 

 2767 H. simplex Lee. Buffalo (Z&R); Washington Co (AM); SI (AM). 



SUBFAMILY H YDROPHILINAE 



Berosus Leach 



2774 B. aculeatus Lee. Mooers, Sep (Not); SI, Je 30 (L&D). 

 2776 B. pantherinus Lee. West Pt. (Robn); NYC (L&B). 



