MEGACHILIDAE 475 



ulkei perterritum Cockerell. Ariz., Nebr, 



Genus ANTHIDIELLUM Cockerell, p. 1146 



Taxonomy: Schwa rz, 1957. Kans. Ent. Soc. Jour. 30: 137 (key to spp. of 

 notatum complex). 



notatum boreale (Robertson). On flowers of Verftewa. 



notatum notatum (Latreille), Mass. to 111., south to Fla. and Miss. Visits 

 many flowers, almost entirely Compositae and Leguminosae. 



notatum robertsoni ( Cockerell ) . 



Biology: Linsley, 1962. Ent. Soc. Amer. Ann. 55: 159-160, figs. 6-7. 



notatum rufimaculatum Schwarz. On flowers of Rhus. 



perplexum (Smith). Visits many flowers, principally Compositae and Legu- 

 minosae, but a scattering also in other families. 



Genus HETEROSTELIS Timberlake, p. 1146 



australis australis (Cresson), changed status. N. J. to Ga. On flowers of 

 Hele^iiiim. 

 Heterostelis australis (Cresson). Reduced to subsp. rank (teste Mitchell, 

 1962, loc. cit. supra, p. 33). 



*australis floridensis Mitchell. Fla. On flowers of Eriogonum and Rhus. 



Heterostelis australis floridensis Mitchell, 1962. N. C. Agr. Expt. Sta. 

 Tech. Bull. 152: 33, fig. 11.?, $. 



*grossa Mitchell. Fla. (Gainesville). 



Heterostelis grossa Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bull. 152 : 

 35. ?. 



STELIS subgenus PROTOSTELIS Friese, p. 1147 



costalis costalis Cresson, changed status. Va. and Ky., south to Fla. and Tex. 

 On many flowers, chiefly Compositae. 

 Stelis (Protostelis) costalis Cresson. Reduced to subsp. rank (teste Mitch- 

 ell, 1962, loc. cit. supra, p. 37). 

 Stelis (Protostelis) louisae Cockerell (syn. by Mitchell, 1962, loc. cit. 

 supra, p. 37). 



costalis floridana Graenicher, changed status. On flowers of Bidens and Meli- 

 lotus. 

 Stelis (Protostelis) floridana Graenicher. Reduced to subsp. rank (teste 

 Mitchell, 1962, loc. cit supra, p. 38). 



floridana Graenicher. A subsp. of costalis Cresson. 



louisae Cockerell. Syn. of costalis costalis Cresson. 



STELIS subgenus MICROSTELIS Robertson, p. 1147 



birkmanni Cockerell. Transfer to Stelis subg. Chelynia Provancher, p. 1148, 

 as a questionable syn. of labiata (Provancher). 



lateralis Cresson. Maine and Ont. to N. Dak., south to Ga. and Tex. On 

 many flowers, principally Compositae. Remove plena (Pro- 

 vancher) , a valid sp., from syn. 



plena (Provancher). Ont. (Ottawa). 



Stelis (Microstelis) lateralis Cresson of Catalog, in part. S. plenum not a 



syn. (teste Mitchell, 1962, loc. cit. supra, p. 43). 



sexmaculata Ashmead. Hosts: Hoplitis (Alcidamea) brachyodonta (Ckll.), 

 H. (A.) colei (Cwfd.). 



*vernalis Mitchell. Pa., N. C, Mich., Minn. 



Stelis (Microstelis) vernalis Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. 

 Bull. 152: 43. 9, $. 



STELIS subgenus PAVOSTELiS Sladen, pp. 1147-1148 



*ater Mitchell. Fla. On flowers of Cirsium. 



