Gyrinidae 263 



2679 D. nigrior Robts. Ithaca, Sep (Dt) ; White Plains, May-Oct (Sq) ; NYC 



and vie. (AM) ; SI (L&D) ; LI: Astoria (AM) ; Deep Pond, Wading 

 R, Jl, Ds (Fall). 



2680 D. americanus Say (assimilis Kby.). Oneida Co, May-Je, Clms (Dt) ; 



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

 (Dnd) ; Pike (NYS) ; Castile, Brad (Flet) ; Westfield, May (Not) ; 

 Ithaca, Sep (Dt) ; W. Hebron, Rockland L. (Lg) ; West Pt. (Robn) ; 

 White Plains, May-Je (Sq) ; Nyack, West Farms (AM) ; NYC and 

 vie. (AM); SI, Ap-Oct (L&D); LI: Flatbush, Coney I., Cypress 

 Hills, May-Sep (AM); Orient, Lath (NYS). 



2681 D. horni Rbts. Axton (MacG) ; Saranac L. (AM) ; Sodus Pt., Je (Notj , 



Spencer, Aug (Dt) ; Ithaca (AM) ; Peekskill (Pollard) ; White 

 Plains, May-Aug (Sq) ; Van Cort. Pk. (AM); SI, Ap-Oct (L&D). 



2682 D. emarginatus Say. Poughkeepsie (NYS) ; Putnam Co, May (Lg) ; 



Peekskill (Pollard); SI, May-Oct (L&D). 



Gyrinus Geoffroy35a 



2684 G. minutus Fab. (roc king hamensis Lee). Pike (NYS) ; Catskills, Pears 



(AM). 



2685 G. confinis Lee. Chaumont R. ; Waddington, Ausable Pt. (Fall); Mooers, 



Sep, Sodus Pt, Je (Not) ; Buffalo (Z&R). 



2686 G. fraternus Coup. Sodus Pt., May-Je, Westfield, May (Not) ; Carmel, 



Aug, Sq (Fall) ; E. Aurora, May, Sep, scarce (Dnd) ; West Pt. 

 (Robn); White Plains (Fall, Sq) ; SI, Ap-May (L&D) ; LI: 

 Amagansett, Sep, Riverhead (Fall). 



2687 G. aeneolus Lee. Rochester (Regimbart) ; Buffalo (AM) ; Ithaca, Je 



(Frost, Vdyk) ; Esopus ; Pine I., Windsor (Fall); West Pt. (Robn); 

 NYC and vie. (NotAM) ; SI (Lg). 



2688 G. limbatus Say. Not identified by Fall ; records are under his latilimhus 



(Lg), Hamilton Co, Sodus Pt., Je, Mooers, Sep, Windsor, Je (Not) ; 

 Ulster L. (Ds) ; White Plains (Fall, Sq) ; LI: Rockaway Beach, Je 

 (Ds). 



G. latilimbus Fall. Ithaca (Fall) ; White Plains, Oct, Sq (Fall) ; Ramapo 



Mts. in AM as horealis (Fall) ; NYC and vie. (NotAM) ; SI, Oct 

 (Woodr). If limbatus Say is the same, it occurs also in western NY. 



2689 G. dichrous Lee. (fratellus Not.). Mooers, May, Windsor, Je (Not) ; 



Chaumont R. ; Pine I., Je (Lg) ; White Plains (Fall, Sq) ; NYC 

 (L&B). 



G. fraterculus Not. (dichrous Fall). Mooers, Sep (Not). 



2690 G. elevatus Lee. SI (L&D). Fall gives no localities for this species except 



Harris Coll. It is possible that specimens heretofore called elevatus 

 are woodruffi Fall. 



2691 G. ventralis Kby. Newport, Pike (NYS) ; Ithaca (Fall) ; Chaumont R. 



(Fall) ; Peekskill (NotAM) ; White Plains (Fall, Sq) ; Van Cort. 

 Pk. (AM); NYC and vie. (NotAM); SI, Mar-Aug (L&D); LI: 

 Riverhead (Fall). 



2692 G. aquiris Lee. Ausable Pt. ; Crown Pt. ; Chaumont R. ; Westfield, May 



(Not); Ithaca; Tivoli ; White Plains, Sep, Sq (Fall); NYC and vie. 

 (AM); SI (Fall). 



^^^ The sequence of species in Gyrinus is that of Leng's catalog, which differs from the arrange- 

 ment in Fall's paper in Trans. Am. Ent. Soc. 47:269-306, 1922. 



