100 THE REPORT OF THE No. 33 



Osmia simillima Sm. Sudbury, Ont., July. 



Osmia californica Cress. Okanagan Lake, B.C., April, (T. Wilson); Lytton, B.C., 

 July, (T. Wilson). 



Megachile relativa Cress. Regina, Sask., August, (T. N. Willing); Peachland, B.C., 

 August, (J. B. Wallis). 



Megachile pruina Sm. Medicine Hat, August, (Sladen); Swift Current, Sask., August, 

 (Sladen); Lethbridge, June, August, (Sladen); Summerland, B.C., August, (Sladen). 



Megachile optiva Cress. Toronto; Muskoka. 



Megachile montivaga Cress. Ottawa, July, (Sladen). 



Megachile subexilis Ckll. Aweme, Man., July, (Criddle); Saskatoon, July, (Sladen); 

 Melfort, Sask., July, (Sladen); Calgary, July, (Sladen); Banff, July, (Sanson); Leth- 

 bridge, June, (Sladen) ; Penticton, June, (Buckell) Ft. Norman, McKenzie Rv., August, 

 (Crickmay). 



Dianthidium notatum Latr. Summerland, August, (Sladen). 



Anthidium cognatum Cress. Western Canada, (Cockerell). 



Anthidium porter ce Ckll. Calgary, (Cockerell). 



Coslioxys mcesta Cress. St. Anne de la Porcatiere, August, (Sladen); Trenton, Ont., 

 September, (Evans); Toronto, August; Ottawa, June, July, (Sladen); Bear Lake, 

 Alta., August, (E. H. Strickland) ; Peachland, August, (J. B. Wallis) ; Shawinigan, V.I., 

 July, (Sladen). 



Coslioxys dubitata Sm. Kirk's Ferry, Que., July, (Sladen); Athabasca, Alta., August, 

 (E. H. Strickland). 



Ccelioxys deplanata Cress. Medicine Hat, August, (Sladen). 



Ccelioxys banksi Cwfd. Toronto, September. 



Ccelioxys comstocki Cress. Lake Simcoe, Ont., September, (E. M. W.); Ottawa, July, 

 (Sladen). 



Ccelioxys sodalis Cress. Toronto; Point Pelee, Ont., June, (N. K. Bigelow). 



Stelididae 



Stelis tripetinum Rob. ( = Stelis ontariana Sla.) Ottawa, August. 



Stelis monticola Cress. Vernon, B.C., (E. P. Venables). 



Stelis montana Cress. Okanagan Falls, B.C., July, (Sladen); Lethbridge, June, July, 



(Sladen); Banff, August, (Garrett) ; Ft. Steel, B.C., June, (W. B. Anderson). 

 Stelis elegans Cress. Penticton, June, (Buckell). 



Ceratinidae 



Ceratina acantha Prov. Aweme, Man., July, (Sladen); Oliver, B.C., April, May, June, 

 September, (Garrett); Gordon Hd., B.C., July, (Downes); Victoria, April, May, 

 (Treherne). 



Apidse 



Bremus affinis Cress. Grimsby, Ont., August, (Sladen); Grimsby, Ont., September, 



(Brimley). 

 Bremus strenuus Cress. Kutlan Glacier, Y. T., June, (Alf. Pattison). 

 Bremus arcticus Kby. Bernard Harbour, N.W.T., June, August, (C. E. A.) ; Cape Ross, 



N.W.T., June, (V. Stefansson); Herschell Is., July, (F. Johansen). 

 Bremus bifarius Cress. Victoria, B.C., (F. W. Taylor); Banff, Alta., (N. B. Sanson). 

 Bremus bifarius nearcticus Handlirsch. Clinton, B.C., May, (R. Phair); White Horse, 



Y.T., July, (A. P. Hawes); Banff, Alta., September, (C. B. D. Garrett). 

 Bremus americanorum Fabr. N.S. 



This is the same species that was recorded in the 1907 Ent. Rec. from Ottawa under 

 the name "Bombus pennsylvanicus D. G." 



Hemiptera 

 (Arranged according to Van Duzee's Check List) 



Cicadellidae 



* Phlepsius marmor S. & Del. Onah, Man., July, on Juniperus horizontalis (Criddle). 



Proc. Ent. Soc. Wash., Vol. 25, No. 7, 1923. 



Miridse 



* Lopidea lathyrce Kt. Aweme, Man., on Lathyrus (Criddle); Saskatoon, Sask., (A. E. 



Cameron). 



* Lopidea dakota Kt. Winnipeg, Man., (Mitchener and Cocks); Saskatoon, Sask., 



(Cameron). 



These two species described in Ent. News, Vol. XXXIV, No. 3, 1923. 



Notonectidse 



* Notonecta borealis Tor. B. & Hu. Bearfoot Mountains, B.C., Sept. 

 Bui. Brook. Ent. Soc, Vol. XVIII, No. 3, 1923. 



