40 PSYCHE [April 



Halictus albipennis Robt. 



1890 Halictus albipennis Robt. 9 6", Trans. Am. Ent. Soc. 17:317. 



1905 Halictus nubilus Lovell, 9, Can. Ent. 37:40. 



Female on Sedum acre, July 12; Rosa humilus, July 16; Solidago, Aug. 21; 

 male on Solidago, Aug. 1-17. The INIaine specimens exhibit considerable variation 

 in size. 



Halictus cressonii Robt. 



1890 Halictus cressonii Robt. 9 (^ , Trans. Am. Ent. Soc. 17:31. 



Female on cultivated blackberry, June 24; Epilobium angustifolium, July 23; 

 Rhus typhina, July 11; Eupatorium perfoliatum, Aug. 25. Apparently common 

 throughout New England. 



AUGOCHLORA. 



While Augochlora confusa is not uncommon in this locality, the rarity of bees 

 belonging to the genus Agapostemon is sho^\^l by the fact that I have collected only 

 four specimens in ten years. 



Augochlora confusa Robt. 



1897 Augochlora confusa Robt. 9 c^, Trans. Ac. Sci. St. Louis, 7: 324. 

 Female on Garden plum, INIay 28; Solidago, Sept. 2; Leontodon autumnalia, 

 Sept. 6; two males on Solidago, Aug. 17. 



Agapostemon. 



Agapostemon radiatus Say. 



1837 Halictus radiatus Say, 9 , Bost. Jour. Nat. Hist. 1 : 394. 



1897 Agapostemon radiatus Robt. 9 d^, Trans. Ac. Sci. St. Louis, 7:397. 



One female on Rubus strigosus, June 16; two females on Corn us alternifolia. 



Agapostemon viridulus Fabr. 



1793 Apis viridula Fabr. 9, Ent. Syst. 2:342. 



1897 Agapostemon viridulus Robt. 9 cJ^, Trans. Ac. Sci. St. Louis, 7:326. 



One female taken on Rosa rugosa (cultivated), June 18, 1905. 



