THE MOUNT DESERT REGION 431 



PSEOTDAGBNIA Kohl 



p. CALIPTERA Cress. Eagle Lake, July 18. 

 P. NANELLA Banks. N. E. Harbor, July 26 (Minot). 

 P. VARITAESATA Baiiks. N. E. Harbor; Salisbury Cove, July 

 8-26. 



Ceropales Latreille 



C. FRATERNA Smith. Edeii ; Green Mt., July 23-25. The spe- 

 cies of the genus are parasitic in the nests of other genera 

 of the family. 



CHRYsroiDAE. The Gold or Cuckoo Wasps 



The members of this family live as social parasites in the 

 nests of the solitary wasps and bees. 



Omalus Jurine 



0. LAEvivENTRis Crcss. S. W. Harbor ; Salisbury Cove; Bar 

 Harbor, June 16-July 13. 



HoLOPHRis Mocsary 



H. iRiDESCENs Nort. Echo Lake; Bar Harbor, July 16-24. 



NoTOZUS Foerster 



N. MARGiNATUs Patt. Pcnikesc, July 13; Station F261. 



HoLOPYGA Dahlbom 



H. ASPERA Brulle. Eden, July 24; Station F69. 

 H. vENTRALis (Say). Indian Point on flowers of wild fennel. 

 Station F260. 



HEa)Yt;HRiDiUM Perrin 



H. DiMiDiATUM Say. Eden; S. W. Harbor, July 23-29. 

 H. vioLACEUM Brull. Bar Harbor, July 22. 

 H. sp. Penikese on ground near holes, Aug. 5. Near H. 

 dimitatum (Say). 



