HALICTIDAE 463 



*ceanothi (Mitchell), n. comb. N. C, Mich., Mo. Taken on flowers of Cean- 

 othus americanus. 

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

 386, fig. 99. ?. 



coeruleum (Robertson). Minn, to Mass., south to Ga. Visits a number of 

 flowers. Nests in abandoned beetle burrows in fallen trees. 

 Biology: Knerer and Atwood, 1962. Ent. Soc. Ontario Proc. 92: 167. 



consonum (Sandhouse). Syn. of versans (Lovell). 



coreopsis (Robertson). 111. and Mich, to Mass., south to Fla. Taken on a 

 great number of flowers. 

 Lasioglossutn (Chloralictus) robertsonelluni Michener (syn. by Mitchell, 

 1960, loc. cit. supra, p. 388) . 



creberrimum (Smith). N. C. to Fla., La. Taken on flowers of Aronia, Er- 

 yngium, Hypericum, Kalmia, and Oenothera. 

 Lasioglossutn (Chloralictus) ashmeadii (Robertson) (syn. by Mitchell, 

 1960, loc. cit. supra, p. 390). 



cressonii (Robertson). Nests in rotten wood above ground. Visits a great 

 number of flowers. 



*delectatum (Mitchell), n. comb. N. B. to N. C, W. Va., Ohio, Ont. Taken 

 on flowers of Daucus carota. 

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

 141: 435. $. 



*dreisbachi (Mitchell), n. comb. N. Y., Md., Mich., Minn. 



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

 141: 391, fig. 101. ?, $. 



*dubitatum (Mitchell) , n. comb. N. Y. (Cortland Co.). 



Dialictus dubitalus (!) Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bull. 

 141: 436. $. Spelled dubitatus in key (p. 376) and in index (p. 

 533). 



ellisiae (Sandhouse). Syn. of tegulare (Robertson). 



euryceps (Ellis). Syn. of laevissimum (Smith). 



*fattigi (Mitchell), n. comb. N. C, Ga. Taken on flowers of Aruncus, Cean- 

 othus and Hydrangea. 

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



392. 9. 



*flaveriae (Mitchell), n. comb. Fla. Taken on flowers of Achyranthes, Flav- 

 eria, Lyonia and Mikinia. 

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



393, figs. 101, 102. 9, $. 



floridanum caesareum (Cockerell). Syn. of pilosum pilosum (Smith). 



floridanum floridanum (Robertson). A subsp. of pilosum (Smith). 



foveolatum (Robertson). 111., Mich. Taken on flowers of Asfer and jR^ws. 



genuinum (Sandhouse). Ont. to N. C. Taken on flowers of Daucus and 

 Hydrangea. 



graenicheri (Ellis). Syn. of pictum (Crawford). 



halophitum (Graenicher). N. C. to Fla., La. Taken on a number of flowers. 



hartii (Robertson). Nebr., Minn, and 111. to La. and N. C. Taken on flowers 

 of Anthemis, Erigeron, Hypericum, Rorippa, Ruhus, and Vicia. 

 Lasioglossutn (Chloralictus) rugosutn (Crawford) (syn. by Mitchell, 

 1960, loc. cit. supra, p. 396). 



*heterognathum (Mitchell), n. comb. N. B. to Minn., south to N. C. and 

 Tenn. Taken on a number of flowers. 

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



141: 397, figs. 95, 99. 9. 

 Taxonomy: Knerer and Atwood, 1963. Ent. Soc. Wash. Proc. 65: 167. $. 



