Vol. XXviii] ENTOMOLOGICAL NEWS. 421 



Chlorion (Isodontia) elegans (F. Sm.). Williston; one, August 8, 



at clav bank. 

 Psammophila violaceipennis (Lep.). Fargo, Monango: July 2 to 



Sept. 15: on Aster multiflorus, Amorpha canescens, Lactuca pu- 



chella and Solidago serotina. 

 Psammophila luctuosa (F. Sm.). Dickinson (C. H. Waldron) ; one 



female. May 25, on Mains mains. 

 Several other specimens have not been determined definitely. 



Family Stizidae. 

 Stizus unicinctus Say. Williston; one male, August 15, on 

 Kuhnistera oligophylla. 



Family Nyssonidae. 



Astatus nebeculus Cress. Williston; one female, August 8, at clay 



bank. 

 Nysson lateralis Pack. Bismarck; one male, July 8, on Sium cicu- 



taefoliuni. 

 Hoplisus albosignatus (Fox). Fargo (C. H. Waldron); one female, 



June 15, on Zi::{a anrea. 

 Hoplisus atrifrons (Fox). Fargo; four males, June 16, on Zisia 



aurea. 

 Hoplisus nebulosus (Pack.), Valley City; one female, August 13, 



on Hrliaiifhiis maximiliani. 

 Pseudoplisus phaleratus (Say). Fargo; two males, July 29 and 



Aug. 21, on Solidago serotina. 



Family Philanthidae. 

 Sub-family Philanthinae. 



Philanthus solvivagus Cress. Sheldon. Medora, Mott (J. R. Camp- 

 bell) ; Aug. 12 and 30, on Solidago canadensis and S. rigida. 



Philanthus albipilosus Cress. Williston, Sheldon; many specimens; 

 Aug. 8 and 12; on Helianthus maximiliani, H. petiolaris, Kuhnis- 

 tera vil'osa and Solidago serotina. 



Philanthus lepidus Cress. Fargo. Bismarck. Valley City; July 8 

 to Aug. ID, on Aster salicifolius, Lactuca pulchella, Melilotus alba, 

 Physostegia parviflora, Sinm ciciitaefolinm, Solidago serotina and 

 Symphoricarpos occidentalis. 



Philanthus pacificus Cress. Sheldon; August 12; two on Kuhnistera 

 rillosa. 



Philanthus flavifrons Cress. Williston. Minot: Aueust I.t and 22: 

 several on Grindelia sqitarrosa and Kuhnistera oligophylla. 



Philanthus vertilabris Dahlb. Williston; one, August 15, on 

 Kuhnistera oligophylla. 



Ococletes basilaris (Cress). Medora; several, August 30. on 

 Solidago rigida. 



Ococletes sanbornii (Cress.). {Ph trumani Dunn). Williston; one, 

 Aug. 15, on Kuhnistera oligophylla. 



Aphilanthops frigidus Sm. Sheldon: August 12, one specimen. 



Aphilanthops subfrigidus Cress. Bismarck; one, July 8, on Sium 

 cicutacfoUnm. 



Sub-family Cercerinae. 



Cerceris chrysippe Banks. Fargo; four, August 2 and 10, on 

 Solidago serotina. 



