Vol. XXviii] ENTOMOLOGICAL NEWS. 423 



Family Psenidae. 



Mimesa mixta (Fox.) (det. Regan.) Lisbon; one male, June 5, on 



Hydro pliylhim virginicum. 



Mimesa pauper Pack. (det. Regan.) Knox, two, July 13, on 



SiuiH ciciitacfolium. 



Xylocelia striata Mickel. Dickinson; one female, July 4. 



Cemonus inornatus (Say). Fargo; three males, June 13 and 15, on 

 Zizia aurca. 



Family Crabronidae. 



Thyreopus tenuiglossis (Pack.). Fargo; two females, August 15, 

 on Aster paniculatus. 



Thyreopus knoxensis Mickel. Knox; one male, July 13, on Sium 

 cicnta-c folium. 



Crabro rufifemur Pack. Fargo, Monango; several, July 3 to Sep- 

 tember I, on Lactuca pulchella, Mclilotus alba, Solidago canaden- 

 sis and Symphoricarpos occidentalis. 



Crabro dilectus Cress. Mott (J. R. Campbell) ; three, August 20. 

 on Solidago mollis. 



Crabro gracilissimus Pack. Fargo; one male, June 13, on Zizia 

 aurea. 



Crabro sexmaculatus Say. Fargo, Lisbon; four, June 5 and 13, on 



Zizia aurea. 

 Crabro heraclei Rohwer. Lisbon; one male, June 5, on Hydro- 



phyllum virginicum. 



Crabro protelarius Mickel. Lisbon; one male, June 5, on Hydro- 

 phyllum- virginicum. 



Crabro chrysargyrus Lep. Fargo; several, June 19 to August 13, 

 on Aster m-ultiflorus, Solidago canadensis and Zizia aurea. 



Crabro maculatus (Fab.). Fargo; several, June 29 to August 1, on 

 Clematis zirgiiiiana and Solidago serotina. 



Crabro montanus Cress. Fargo, Lisbon; two females, June 5 and 

 20, on Heracleum lanatum and Zizia aurea. 



Crabro producticollis Pack. Fargo; a female, July 29, on Clematis 

 virginiana; two males July 31, on Solidago serotina. 



Crabro interruptus (Lep.). Fargo, Mylo; many, July 7 to Sep- 

 tember 6, on Melilotus alba. Solidago canadensis, S. rigida, S. 

 serotitta, Symphoricarpos occidentalis and Zizia aurea. 



Family Oxybelidae. 



Notoglossa emarginata (Say). Pleasant Lake; a pair, August 11, 

 on Solidago canadensis. 



Oxybelus subulatus Rob. Monango. Granville; four, July 3 and 8, 

 on Amorpha canescens and Kuhnistera oligophylla. Two from 

 Fargo (Nos. 2068 and 2083) are tentatively referred here; also 

 one from Minot (9337). 



Oxybelus quadrinotatus Rob. Fargo, Valley City, Lisbon, Pleasant 

 Lake, Dickinson; many, June 5 to August 19, on Apocynum hyper- 

 icifolium. Helianthus petiolaris, Melilotus alba. Solidago cana- 

 densis, S. rigida and Zizia aurca. 



Oxybelus quadrinotatus montanus Rob. Medora; one female, 

 .A.ugust 30, on Solidago rigida. 



