422 ENTOMOLOGICAL NEWS. [Nov., 'l/ 



Cerceris dentifrons Cress. Fargo (C. H. Waldron) ; one, August 



19, on Solidago rigida. 



Cerceris deserta Say. Fargo, Pleasant Lake, Mott (J. R. Camp- 

 bell) ; four, July 31 to Aug. 31, on Solidago canadensis and S. 



scrotina. 

 Cerceris occipitomaculata Pack. Williston; three, August 15, on 



Kuhnistera oligophylla. 

 Cerceris dakotensis Banks. Fargo: six, July 7 to September 6, on 



Mclilotus alba, Solidago canadensis and 5. scrotina. 

 Cerceris nigrescens F. Sm. Fargo, Valley City. Bismarck, Mylo; 



June 29 to July 21, on Slum cicutacfoliuin, Symphoricarpos ccci- 



dcntalis and Zizia aurea. 

 Cerceris stigmosalis Banks. Fargo; one, September 4, on Solidago 



canadensis. 

 Cerceris halone Banks. Fargo; four, July 31 and August 2, on 



Solidago serotina. 

 Cerceris fulvipediculata Schlet. Fargo, Monango, Granville; July 



3 to Aug. 24, on Amorpha cancsccns, Mclilotus alba and Kuhnis- 



tfra oligophylla. 

 Cerceris rufinoda Cress. Bismarck; one, July 8, on Sium cicutae- 



folium.. 

 Cerceris rufinoda crucis Vier. & Ckll. Williston, Minot; two, 



Aug. 15 and 22, on Kuhnistera oligophylla.. 

 Cerceris finitima Cress. Minot; one, August 22, on Kuhnistera 



oligophylla. 

 Eucerceris bicolor Cress. Minot; four, August 22, on Kuhnistera 



oligophylla. 

 Eucerceris fulvipes Cress. Bismarck; one, July 8, on Siuin cicutac- 



foliitm. 

 Eucerceris superba Cress. Williston, Minot; several, August 15 



and 22, on Kuhnistera oligophylla. 



Family LARRIDAE. 



Tachysphex tarsatus (Say). Sheldon; one female, August 12. 

 Tachysphex fusus Fox. Dickinson; one male, July 4. 

 Tachysphex mundus Fox. Bismarck; one female, July 8, on Sium 



cicntacfolium. 

 Tachysphex tenuipunctus Fox. Fargo; one female, August 26, on 



Solidago canadensis. 

 Tachytes pepticus (Say). Williston, Minot; three, August 15 and 



22, on Kuhnistera oligophylla. 



Family BEMBICIDAE. 



Stictiella emarginata (Cress). Williston; one female, August 15, 



on Kuhnistera oligophylla. 

 Bicyrtes ventralis (Say). Medora, Williston; four, August 8 and 



30, on Helianthus pctiolaris, Solidago rigida and S. scrotina. 

 Bembix sayi Cress. Dickinson, July 28 (C. H. Waldron) ; Sheldon, 



Aug. 12, on Kuhnistera villosa. 

 Bembix spinolae Lep. Fargo, Sheldon, Mott (J. R. Campbell); 



July ii to Sept. 15, on Aster multiflorus, A. paniculatns, Centaurea 



jacca, Grindclia squarrosa, Solidago canadensis, S. rigida. Also 



from Lake Park, Minnesota (C. H. Waldron), on Eupatorium 



perfoliatuni. 

 Microbembex monodonta (Say). Sheldon; three females, Aug. 12. 



