Superfamily APOIDEA 1853 



dicksoni Timberlake. N. Mex., Ariz.; Mexico (Baja California and Sonora). Pollen: Unknown, 

 but visits flowers of Aplopappus, Argemone intermedia, Crotalaria pumila, Milleria 

 quinquefolia, Pedis papposa. 

 Pseudopanurgus dicksoni Timberlake, 1967. Amer. Mus. Novitates 2298: 8. 9, 6. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 19, figs. 15-16 (tax. characters, 

 flower record). 



fraterculus fraterculus (Cockerell). West. Tex., N. Mex.; Mexico (Aguascalientes, Coahuila, 

 Durango and San Luis Potosi). Pollen: Unknown, but visits flowers of Gutierrezia 

 lucida, Tidestromia. 

 Calliopsis fraterculus Cockerell, 1896. Canad. Ent. 28: 159. 6,9. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 21-23 (redescription, tax. status). 

 fraterculus timberlakei Cockerell. Colo., N. Mex., Ariz., Calif. (San Diego County); Mexico 

 (Baja California). Parasite: Holcopasites arizonicus (Linsley)?, H. insoletus (Linsley)? 

 Pollen: Apparently an oligolege of the Compositae, including Aplopappus gracilis, 

 Baileya multiradiata, B. pleniradiata, Gutierrezia califomica, G. microcepliala, 

 Heliopsis, Heterotheca subaxillaris, Hymenothrix wislizeni. Pedis papposa, but visits 

 these and other flowers for nectar including Allionia, Eriogomim. 

 Pseudopanurgus timberlakei Cockerell, 1931. Ent. Soc. Wash., Proc. 33: 201. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 23-24, figs. 2, 19-20 (redescription, 

 floral and geogr. records). 



Biology: Rozen, 1965. N. Y. Ent. Soc, Jour. 73: 88 (parasite). — Rozen, 1967. Amer. Mus. 

 Novitates 2297: 19-27, figs. 1-2, tables 1-2 (nest architecture, life history, pollen source, 

 parasite). — Hurd and Linsley, 1972. Smithsn. Contrib. Zool. 114: 39 (parasites). 

 pectidellus Cockerell. N. Mex., Ariz.; Mexico (Chihuahua). Pollen: Apparently an oligolege of 

 the Compositae, visits flowers of Baileya, Pedis papposa, Verbesina. 

 Pseudopanurgus pectidellus Cockerell, 1904. Ann. and Mag. Nat. Hist. (7) 14: 26. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 32-34, figs. 33-34 (redescription, 

 geogr. and floral records). 

 pectiphilus (Cockerell). N. Mex., Ariz. Pollen: Apparently an oligolege of the Compositae, 

 visits flowers of Baileya multiradiata, Heterotheca subaxillaris. Pedis papposa, 

 Tidestromia lanuginosa. 

 Panurginus pectiphilus Cockerell, 1913. Ann. and Mag. Nat. Hist. (8) 11: 193. 9. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 34-35, figs. 35-36 (redescription, 



geogr. and floral records). 



perarmatus Timberlake. South. Ariz.; Mexico (Chihuahua and Sonora). Pollen: Apparently an 



oligolege of the Compositae, visits flowers of Aplopappus gracilis, Heterotheca 



subaxillaris, Verbesina encelioides, Zexmenia podocephala. 



Pseudopanurgus perarmatus Timberlake, 1967. Amer. Mus. Novitates 2298: 5. 9, 6. 



Taxonomy: Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 35, figs. 37-38 (tax. characters). 

 perpunctatus Timberlake. N. Mex., Ariz. Pollen: Presumably an oligolege of Compositae, visits 

 flowers of Heterotheca, Pedis papposa. 

 Pseudopanurgus perpunctatus Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 35, figs. 39-40. 

 9,i. 

 rugosus (Robertson). Md. to Ga., west to 111., Nebr., Kans., Tex. Pollen: Apparently an oligolege 

 of the Compositae, especially the Helianthae, visits flowers of Bidens aristosa, 

 Helianthus annuus, H. divaricatus, H. mollis, H. petiolaris, H. subaxillaris, Heliopsis 

 helianthoides, Pontederia cordata, Rudbeckia laciniata, R. triloba, Silphium 

 perfoliatum, S. speciosuyyi, but visits flowers of Melilotus officinalis for nectar. 

 Calliopsis rugosus Robertson, 1895. Amer. Ent. Soc, Trans. 22: 121. 9, cJ. 



Taxonomy: Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 269-270, figs. 62, 65-66 

 (redescription). -Timberlake, 1973. Calif. Univ. Pubs. Ent. 72: 38, figs. 41-42 (tax. 

 characters, geogr. and floral records). 



