Superfamily APOIDEA 1969 



nymphaearum (Robertson). Minn, and Kans. to N. S., south to Ga. 



HalictHs palustris Robertson, 1890. Amer. Ent. Soc, Trans. 17: 317. 9, 6. Preocc. 



Halictus nymphaearum Robertson, 1895. Amer. Ent. Soc, Trans. 22: 117. N. name. 



Halktua paludicola Dalla Torre, 1896. Cat. Hym., v. 10, p. 75. N. name. 



Halictus oceanicus Cockerell, 1916. Brooklyn Ent. Soc, Bui. 11: 11. 9. 

 nymphalis (Smith). Minn, and Mass. south to Tex. and Fla. 



Halictus 7iymphalis Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 68. 9. 



Taxonomy: Cockerell, 1905. Amer. Ent. Soc, Trans. 31: 352. 

 oblongus (Lovell). Colo., Minn, and N. S., south to N. Mex., La. and Ga. Ecology: Nests in 

 rotten wood above ground. 

 Halictus oblongus Lovell, 1905. Canad. Ent. 37: 40. 9. 

 Halictus pla7iatus Lovell, 1905. Canad. Ent. 37: 300. 9. 



Taxonomy: Lovell, 1908. Psyche 15: 39. 6. 

 obnubilus (Sandhouse). Colo. 



Halictus {Chloralictus) obnubilus Sandhouse, 1924. U. S. Natl. Mus., Proc 65 (19): 28. <J. 

 obscurus (Robertson). Minn, and 111. to Conn, and Ont., south to Ga. Predator: Philanthus 

 gibbosus (Fabr.). 

 Halictus obscurus Robertson, 1892. Amer. Nat. 26: 270. 9. 



occidentalis Crawford. Colo., N. Mex. 



Dialictus occidentalis Crawford, 1902. Canad. Ent. 34: 318. 9. 

 Halictus galei Cockerell, 1919. Canad. Ent. 51: 272. 9. 



oleosus (Cockerell). Colo., N. Mex. 



Halictus oleosus Cockerell, 1898. Denison Univ. Sci. Labs., Bui. 11: 47. 9. Republished by 

 Cockerell, 1898. N. Mex. Univ., Bui. 1: 47, female. 

 orbitatus Mitchell. Minn, to Conn, and Ont., south to N. C. and W. Va. 



Dialictus orbitatus Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 440, fig. 101. 6. 

 ornduffi Hurd. Calif. Pollen: Apparently a narrowly polylectic visitor to the flowers of 

 Jepsonia heterandra, but also visits flowers of Compositae apparently for nectar. 

 Dialictus ornduffi Hurd, 1970. Pan-Pacific Ent. 46: 210. 9,6. 



Biology: Ornduff, 1971. Evolution 25: 300-311, 1 fig., 7 tables (role in pollination of Jepsonia 

 heterandra). 

 otsegoensis Mitchell. Mich. (Otsego Co.). 



Dialictus otsegoensis Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 440. 6. 



pacatus (Sandhouse). Colo. 



Halictus pacatus Sandhouse, 1924. U. S. Natl. Mus., Proc. 65 (19): 16. 9. 



pallidellus (Ellis). N. Mex., Utah, Calif. 



Halictus pallidellus Ellis, 1914. Ent. News 25: 151. 9. 

 paradmirandus Knerer and Atwood. Ont. 



Dialictus paradiuirandus Knerer and Atwood, 1966. Canad. Ent. 98: 886. 9, 6. 



paululus (Sandhouse). Colo. 



Halictus paululus Sandhouse, 1924. U. S. Natl. Mus., Proc 65 (19): 23. 6. 



pavoninus (Ellis). Colo. 



Halictus pavoninus Ellis, 1913. Ent. News 24: 206. 9. 



pensitus'(Sandhouse). Colo. 



Halictus pensitus Sandhouse, 1924. U. S. Natl. Mus., Proc. 65 (19): 38. 6. 



perdifficilis (Cockerell). Colo., N. Mex.; north. Mexico. 



Halictus perdifficilis Cockerell, 1895. Ann. and Mag. Nat. Hist. (6) 16: 68. 9. 

 Halictus perfficilis(l) Cockerell, 1897. N. Mex. Agr. Expt. Sta., Bui. 24: 19. 



Taxonomy: Cockerell, 1901. Ann. and Mag. Nat. Hist. (7) 7: 126. 



perexiguus (Sandhouse). N. Mex. 



Halictus perexiguus Sandhouse, 1924. U. S. Natl. Mus., Proc. 65 (19): 26. 6. 



perichlarus (Cockerell). Calif. 



Halictus (Chloralictus) perichlarus Cockerell, 1937. Pan-Pacific Ent. 13: 153. 9, 6. 

 Halictus perichlarus Cockerell, 1939. Calif. Acad. Sci., Proc. (4) 23: 428. Emend. 



