422 EXTOMOLOGICAL NEWS. [Xov., 'l/ 



Cerceris dentifrons Cress. Fargo (C. H. W'aldron) ; one, August 



19, on Solidago rigida. 

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

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



scrotina. 

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



Kniinistcra oUgophylla. 

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



Mclilotits alba, Solidago canadensis and i". scrotina. 

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



June 29 to July 21, on Siutn cicutacfolium, Symphoricarpos ccci- 



dcntalis and Zicia aiirea. 

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



canadensis. 

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



Solidago scrotina. 

 Cerceris fulvipediculata Schlet. Fargo, Monango, Granville; July 



3 to Aug. 24. on Amorpha canesccns, Melilotus alba and Kiihnis- 



tdra oUgophylla. 

 Cerceris ruiinoda Cress. Bismarck; one, July 8, on Slum cicutae- 



folium. 

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



Aug. 15 and 22, on Kuhnistera oUgophylla.. 

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



oUgophylla. 

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



oUgophylla. 

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

 folium. 

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



and 22, on Kuhnistera oUgophylla. 



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 



cicutacfolium. 

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



Solidago canadensis. 

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



22, on Kuhnistera oUgophylla. ^ 



Family Bembicidae. 



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



on Kuhnistera oUgophylla. 

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



30, on Helianthus petiolaris, Solidago rigida and S. serotina. 

 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. paniculatus. Centaurea 



jacca, Grindelia squarrosa, Solidago canadoisis, S. rigida. Also 



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



perfoliatum. 

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



