1020 Sphecidae 



S. stirpicola Pck. Spencer L., Je 30, Ithaca, Jl 7-Aug 1, McLean, Jl 18 (Bdy-CU). 

 Nests in brambles and elder twigs, provisioning them with a variety of flies. 

 They have been observed to utilize tunnels in a railroad tie for a nesting site. 



S. decemmaculatus Say. West Farms, Angus, Nort (Pck) ; LI: Springs (Beq). 

 Preys on horseflies. 



S. chrysargyrus Lep. (chrysarginus Pck.). Keene Val., Not (Beq) ; Manlius, 

 Sep 6, SmHH (Cress-CU) ; New Russia, Aug 18 {Bdy-C\J) ; Caroline to 

 Harford, Je 10, Ithaca, Je-Jl 9, MacG (Bdy-CU) ; Ft. Montgomery, Schott 

 (Beq); SI, Ds (Ashm). Very widely distributed from Ga northward to 

 Canada and westward to the Pacific Coast. Nests in logs. 



S. rufifemur Pck. Ithaca, Jl-Aug 4 (Bdy-CU) ; SI (Beq). 



S. singularis Sm. {maculatus Fab.?). Keene Val. (Beq) ; Old Forge, Wells. 

 Saranac Inn, Jl (NYS) ; Malloryville, Je 18-20, MacG (Bdv-CU) ; Otto; 

 Ithaca, Jl 14-30, McLean, Jl 9-Aug 30, S Robinson (Bdy-CU) ; Trenton Falls, 

 DM (FSm); Oliverea (Beq); LI: Orient (Beq). 



(Subgenus Ceratocolus Lepeletier) 



S. producticollis Pck. Keene Val. (Beq) ; Wells, Jl, Long L., Aug (NYS) ; 

 Portageville, Je 13, Ithaca. Je 13- Aug 6 (Bdy-CU) ; Mud Cr., Je 17-20, MacG 

 (Bdy-CU) ; Norton's Landing, Cayuga L., Jl, SmHH (Cress-CU) ; LI: 

 Sea Cliff (Bks) ; Pennequid Barrens (Beq) ; Huntington, Aug 19, Schott 

 (Roll). A Canadian species. 



S. interruptus Lep. Canandaigua L., Jl (NYS) ; Manlius, Sep, SmHH (Cress- 

 CU) ; Geneva, Je 26, Cy (Bdy-CU) ; Otto, Sep 1-15, Comstock (Cress-CU) ; 

 Ithaca, May-Sep (Bdy-CU) ; Taughannock, Jl 2, Spencer, Je 30, Comstock 

 (Bdy-CU) ; Norton's Landing, Cayuga L., Jl, SmHH (Cress-CU) ; Ft. Mont- 

 gomery, Schott (Beq) ; Middletown, Jl 2-20, Spooner (Bdy-CU) ; SI, Jl 20, 

 Ds, Ashm (Beq) ; LI: Springs, Gardiners I. (Beq). 



(Subgenus Thyreopus Lepeletier) 



S. argus Pck. LI, Ashm (Fox) ; Gardiners I. (Beq). 

 S. cribellifer Pck. LI, Ashm (Fox) ; Gardiners I. (Beq). 



S. latipes Sm. _ Axton, Je 12-22, MacG&H (Bdy-CU); Long L., Aug (NYS). 



A Canadian species. 

 S. monticolus Pck. Old Forge, Jl, Piseco L., Aug (NYS). 

 S. provancheri Fox. Ithaca, Aug 12 (Bdy-CU). 



S. advenus Sm. Batavia, Je 18, Ithaca, Je 20-Oct 2 (Bdy-CU) ; LI, Ashm (Fox). 

 S. tumidus Pck. LI: Jamaica (Beq). 



(Subgenus Crossocerus Lepeletier) 



S. nitidiventris Fox. Ithaca, Je 5-Jl (Bdy-CU). 



S. maculipennis Sm. Speculator, Aug (NYS) ; Rochester Jet., Je 28, Leon (Bdy- 

 CU) ; Black Br., Je 21 (Bdy-CU) ; Ithaca, Je 5-Jl 22 (Bdy-CU) ; L. Keuka, 

 Je 28, Cy (Bdy-CU) ; Albany, May (NYS). 



S. minimus Pck. Wilmington, 1000-2000 ft., Aug 20-25 (Bdy-CU) ; Ithaca, Je 27, 

 Guerlac (Bdy) ; LI: Sea CHff (Bks). 



S. tarsalis Fox. "NY" (Fox). 



