440 BIOLOGICAL SUEVEY OF 



S01.ENIUS LePeletier 



S. (Blepharipus) ater Cress. Narrows; Echo Lake, June 27- 

 Aug. 13. All of this genus make burrows in the ground, 

 stalks, wood, etc. Flies are the favorite insect for pro- 

 visioning. 



S. chrysargynus LeP. Bar Harbor; S. W. Harbor, July 17-27. 



S. coRRUGATUS Pack. S. W. Harbor, July 11. 



S. iNTEERUPTus LcP. Edcii, July 24-Sept. 6. 



S. MACULiPENNis Smith. Echo Lake; N. E. Harbor, July 12- 

 Aug. 10. 



S. MONTANus Cress. Eden; Long Pond, July 16-17. 



S. MONTicoLA Pack. Eden, July 28. 



S. OBSCURUS Smith. Bar Harbor, July 28-Sept. 10. 



S. SAYi Ckll. S. W. Harbor; Bar Harbor, July 10-Aug. 23. 

 Common. 



S. SEPTENTRiONALis Pack. Mt. Descrt, July 14. 



S. siNGULARis Smith. Stations F133 and 263. 



S. TRAPEzoiDEus Pack. Bar Harbor; S. W. Harbor, July 23- 

 Aug. 14. 



S. TRiFASciATUs Say. Bar Harbor, Aug. 9. 



OxYBELUS Latreille 



O. QUADRiNOTATus Say. This genus instead of carrying the 

 flies, which it uses to provision, impales them on its sting. 

 Penikese in bank, July. 



Cemonx'S Jurine 



C. iNORNATus Pack. LTpper Hadlock Pond ; Bar Harbor, June 

 10-21. 



Hylaeidae 



CoLLETES Latreille 



C. ARMATus Patt. Record of capture lost. The members of 



this genus build nests in the ground, often in colonies. 

 C. MEsocopus. Station F39, Oct. 6. 



