HALICTIDAE 465 



njmphaearum (Robertson). Minn, and Kans. to N. S., south to Ga. Visits a 

 number of flowers. 



nymphale (Smith). Minn, to Mass., south to Tex. and Fla. Visits a number 

 of flowers. 



oblongiun (Lovell). Colo., Minn. ,and N. S., south to N. Mex., La., and Ga. 

 Nests in rotten wood above ground. Visits a number of flowers. 



obscurum (Robertson). Minn, and 111. to Conn., south to Ga. Taken on a 

 large number of flowers. 



"'orbitatum (Mitchell), n. comb. Minn, to Conn., south to N. C. and W, Va. 

 Taken on flow^ers of Rhus and Rudbeckia. 

 Dialictus orbitatus Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bull. 141 : 

 440, fig. 101. $. 



*otsegoense (Mitchell) , n. comb. Mich. (Otsego Co.). 



Dialictus otsegoensis Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bull. 

 141: 440. $. 



perpunctatum (Ellis). Minn, to N. B., south to N. Mex. and Ga. Taken on 

 a number of flowers. 

 Lasioglossum (Chloralictus) hrycinci (Crawford) (syn. by Mitchell, 1960, 

 loc. cit. supra, p. 411). 



*philanthanum (Mitchell), n. comb. N. C, N. Y., Mich. On flowers of Soli- 

 dago. 

 Dialictus philanthanus Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bull. 

 141: 441. $. 



pictum (Crawford). Nebr., Minn., Wis., Mich., 111. On flowers of Lepidium 



Melilotus, Salix, and Solidago. 

 Lasioglossum (Chloralictus) graenicheri (Ellis) (syn. by Mitchell, 1960, 



loc. cit. supra, p. 412). 

 *Dialictus muskegonensis Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. 



Bull. 141: 439. $. (Syn. by Mitchell, 1962, op. cit.. Bull. 152: 



547.) 

 Biology: Knerer and Atwood, 1962. Ent. Soc. Ontario Proc. 92: 170. 



pilosum floridanum (Robertson). N. C. to Fla. Taken on a number of 

 flowers. 

 Lasioglossum (Chloralictus) floridanum floridanum (Robertson). A 

 subsp. of pilosum (Smith) {teste Mitchell, 1960, loc. cit. supra, p. 

 414). 



pilosum pilosum (Smith), changed status. Colo, and Minn, to N. S., south to 



Ga. Taken on a great number of flowers. 

 Lasioglossum (Chloralictus) pilosum (Smith). Reduced to subsp. rank 



(teste Mitchell, 1960, loc. cit. supra, p. 413). 

 Lasioglossum (Chloralictus) floridanum caesareunt (Cockerell). Syn. by 



Mitchell, 1962, loc. cit. supra, p. 547. 

 Biology: Knerer and Atwood, 1962. Ent. Soc. Ontario Proc. 92: 170. 



*placidense (Mitchell), n. comb. Fla. 



Dialictus placidensis Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bull. 

 141: 441. $. 



politissimum (Cockerell). Syn. of illinoense (Robertson). 



pruinosum (Robertson). Alta. to New England states, south to Ariz, and 

 N. J. Taken on a number of flowers. 



raleighense (Crawford). N. C. to Fla. Taken on flowers of Galactia, Poly- 

 gonum and Tephrosia. 



reticulatum (Robertson). 111. and Mich, to Maine, south to Fla. Taken on 

 flowers of Aronia, Bidens, Crataegus, Melilotus, Prunus, Rhus, 

 Rubus, Solidago, and Vaccinium. 



robertsonellum Michener. Syn. of coreopsis (Robertson). 



