258 Dytiscidae 



2483 H. (Oreodytes) septentrionalis Gyll. Westfield, May (Not) ; Catskills, in 

 running water, Sherm (Fall). 



Agaporus Zimmerman 



2531 A. difformis Lee. (Hydroporus). Buffalo (Z&R) ; Peekskill, May-Sep 



(Sherm) ; White Plains, Ap (Sq) ; SI, Ap-Je ( Sherm). ^ Occurs in 

 woodland pools, among rotted leaves, and is very sluggish in its move- 

 ments (Sherm). 



2532 A. conoideus Lee. Ringwood, Jl, Senning (Flet). 



SUBFAMILY COLYMBETINAE 

 Agabus Leach 33 



2548 A. semivittatus Lee. E. Aurora, Jl-Aug, in brooks (Dnd) ; Westfield, May 

 (Not); Ithaca, Ap-May, Jl (ShermCU) ; Schoharie (Not). 



2546 A. stagninus Say. "NY" (AM) ; Clarence, Erie Co, Aug, one specimen 

 (Dnd); Batavia, Je (Kngt). 



2543 A. obtusatus Say. Newport (NYS) ; Chautauqua, Thompson (Sherm) ; 



Westfield, May (Not) ; Peekskill, Jl, in springs (ShermCU) ; White 

 Plains, Ap 13-Sep 13 (Sq) ; near NYC (L&B) ; Spuyten Duyvil 

 (Sherm) ; SI (L&D). 



2544 A. planatus Shp. SI, Rbts (Fall). 



2539 A. seriatus Say. Newport, May (NYS) ; Manlius, Mar (ShermCU) ; E. 

 Aurora, May-Jl, in brooks, scarce (Dnd) ; Buffalo (Z&R) ; Ithaca, Aug 

 5 (ShermCU); Gloversville, Ap (NYS); Peekskill, Sherm (L&B); 

 SI, Ap-Aug (L&D). 



2550 A. punctatus Melsh. NYC (AM) ; SI, Ap-Je, Aug (L&D) ; LI, L&D 



(Sherm). 



2551 A. punctulatus Aube {aencolus Cr.). Pike, May 20 (Fall, Frost); Buffalo 



(Z&R) ; McLean, Jl (Dt) ; Cortland Co, May 21 (ShermCU) ; Wash- 

 ington Co, Je (AM) ; W. Hebron (Sherm). 

 2553 A. semipunctatus Kby. (stridulator Shp.). Buffalo (Z&R); Cortland Co, 

 Jl, in pasture pools (Dnd) ; Peekskill, in woodland pools (Sherm) ; 

 NYC (AM); SI (Sherm). 



2556 A. taeniolatus Harr. Buffalo (Z&R); NYC (AM); SI (L&D). 



2557 A. disintegratus Cr. E. Aurora, Sep, one in large pond (Dnd) ; Ithaca, Ap 



21 (ShermCU) ; McLean Bogs, Aug (Dt) ; West Pt. (Robn) ; Peeks- 

 kill (AM) ; NYC, Oct (AM) ; SI, May, Jl, Dec (L&D) ; LI: Forest 

 Pk., Shoe (Sherm). 



2562 A. ambiguus Say (reticidatns Aube, fimbriatus Lee). Cranberry L., Je 

 (H) ; Mooers, Sep (Not) ; Syracuse, Ap-May (H) ; Buffalo (Z&R) 

 E. Aurora, Sep, in ponds, scarce (Dnd) ; Ithaca, Oct 6 (ShermCU) 

 McLean, Aug, Ringwood, Je-Jl (Dt) ; Warren, Sep (ShermCU) 

 Peekskill (Sherm) ; White Plains, Ap (Sq) ; SI, Ap, Jl (L&D). 



2572 A. erythroptenis Say. Newport (NYS) ; Cranberry L., Je (H) ; Ithaca 

 (ShermCU); West Pt. (Robn); Peekskill (Sherm); White Plains, 

 Oct 25 (Sq); NYC (L&B); SI (L&D). 



'*'•' The arrangement of species in Agabus follows Fall's paper on A Review of the North Ameri- 

 cav^ Species of Agabus, published in 1922, and differs considerably from that in the Leng catalog. 



