THE MOUNT DESERT REGION" 159 



A. TUMiDA Vier. Echo Lake, July 12, 1918. Type locality. 

 A. viciNA Smith. Bar Harbor, June 8. On flower of fruit 



trees. 

 A. wiLKELLA Kby. S. W. Harbor; Bar Harbor, June 7-July 



22. On flowers of the raspberry and gooseberry. 



OXYSTOGLOSSA Smith 



0. coNFusus Robts. Green Mt., July 25. 



0. puRus Say. Bar Harbor ; Salisbury Cove, June 9-July 25. 



Sphecodes Latreille 



S. JOHNSONI Lovell. N. E. Harbor, July 24. 



S. NUBiLus Lovell and Cockerell. Bar Harbor, Aug. 15. 



S. OBScuRANs Lovell and Cockerell. Bar Harbor, June 16- 



July 24. 

 S. RANUNCULI Robts. Bar Harbor, June 15. 



The species of Sphecodes are parasitic in the nests of spe- 

 cies of Halictus. 



Macropidae 



Macropis Panzer 



M. MORSEi Robts. S. W. Harbor; Echo Lake; Salisbury 

 Cove, June 23-July 13. 



Panurgidae 



Calliopsis Smith 



C. ANDRENiFORMis Smith. Ou flowcr of Leontodon autumnalis, 

 July 30 (McAtee). Salisbury Cove, July 13. 



NOMADIDAE 

 Nomada Fabricius 



N. cuNEATA var. QUADRisiGNATA Robts. Bar Harbor; Echo 



Lake, June 16-July 26. 

 N. PERPLEXA Cress. Bar Harbor; Narrows; Salisbury Cove, 



June 9-July 23. 



These are known as 'cuckoo bees,' living parasitically in 

 the nests of other bees. 



EUCIRIDAE 

 Melissodes Latreille 



M. RUSTicA Say. Bar Harbor ; S. W. Harbor ; Salisbury Cove. 

 Aug. 10-22. 



