Superfamily APOIDEA 2125 



actuosa (Cresson). Wash, and Idaho, south to Calif., Utah, Ariz., and N. Mex. Pollen: Polylege, 

 visits a wide variety of flowers including Agoseris heterophylla, Anisinckia 

 douglasiana, A. iyitemiedia, Antirrhinum, Aplopappus, Astragalus, Brassica 

 campestris, Brodiaea laxa, Calochortus, Chaenactis, Cirsium, CoUinsia, Coreopsis 

 californica, Cryptantha intermedia, Dodecatheon, Eriodictyon califomicum, Erodium 

 cicutarium, Eschscholzia californica, Haplopappus linearifolius, Helianthus nuttallii, 

 Hesperochiron californica, Lasihenia chrysostoma, L. gracilis, Layia glandulosa, L. 

 platyglossa, Lesquerella gordonii, Linanthus, Lotus, Lupinus bicolor, L. densiflorus, L. 

 nanus, L. succulentus, Medicago hispida, Melilotus, Oenothera pallida, Oreocarya, 

 Orthocarpus purpurascens, Phacelia ciliata, P. dista^is, P. humilis, Plagiobothrys 

 califomicus, Prunus, Ranunculus califomicus, Raphanus sativus, Rhamnus, 

 Rhododendron, Salix, Salvia columbariae, Sambucus, Sisyrinchium bellum, Tamarix 

 gallica, Trifolium repens, T. tridentatum, Wyethia. Diadasia tricincta Provancher, 

 listed in this catalog as possibly a synonym of Diadasia enavata (Cresson), may be a 

 synonym of this species (see Timberlake, 1969. Calif. Univ. Pubs. Ent. 57:13). 



Melissodes actuosa Cresson, 1878. Acad. Nat. Sci. Phila., Proc. 30: 208. 9. 



Synhalonia californica Fowler, 1899. Canad. Ent. 31: 137. 9. Preocc. 



Synhalonia fowleri Cockerell, 1905. South. Calif. Acad. Sci., Bui. 4: 28. 9. 



Synhalonia territella Cockerell, 1909. Entomologist 38: 146. 6. 

 albescens Timberlake. Calif., Ariz., Nev. Pollen: Polylege, visits flowers of Amsinckia, Aster 

 abatus, Dalea saundersii, Delphinitim parishii, Larrea tridentata, Lycium torreyi, 

 Oenothera clavaefomiis, Prosopis, Salvia carduacea, Sphaeralcea ambigua, S. orcuttii, 

 Tamarix. 



Synhalonia albesce^is Timberlake, 1969. Calif. Univ. Pubs. Ent. 57: 14, figs. 5, 6. 9, S. 



Biology: Hurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 42 (floral information). 

 amsinckiae Timberlake. Wash. (Pullman and Wawawai), Calif.; Mexico (Baja California). 



Pollen: Apparently an oligolege of Amsinckia including A. douglasiana, A. intermedia, 

 A. eastwoodae, A. tessellata, but also visits flowers of Arctostaphylos glauca, Encelia 

 californica, Lantana sellowiana, Phacelia, Raphanus sativus, Salvia columbariae, S. 

 mellifera. 

 Synhalonia amsinckiae Timberlake, 1969. Calif. Univ. Pubs. Ent. 57: 15, figs. 7, 8. 9, 6. 

 angustifrons Timberlake. Oreg., Calif., Ariz., Utah; Mexico (Baja California). Pollen: Polylege, 

 visits a wide variety of flowers including Amsinckia iyitermedia, Arctostaphylos 

 mariposa. Astragalus pachypus, Brassica incana, Cercidium, Cryptantha, 

 Cynoglossum, Dudleya, Encelia californica, Eriogonum, Lantana sellowiana, Larrea 

 tridentata, Lotus scoparius, Lupinus excubitus, L.formosus, L. paynei, Parkinsonia 

 aculeata, Penstemon antirrhinoides, P. palmeri, P. spectabilis, Phacelia distans, 

 Prunus fasciculata, Rhus trilobata. Salvia apiana, S. columbariae, S. dorrii, S. 

 mellifera, Sambucus, Scrophularia californica. 

 Synhalonia angustifrons Timberlake, 1969. Calif. Univ. Pubs. Ent. 57: 16, figs. 9, 10. 9, 6. 

 aragalli Cockerell. Colo., Tex. Pollen: Unknown, but visits flowers of Astragalus, Oxytropis 

 lambertii. 

 Synhalonia frater aragalli Cockerell, 1904. Ann. and Mag. Nat. Hist. (7) 14: 25. 9. 

 argyrophila (Cockerell). Tex. Pollen: Unknown, but visits flowers of Astragalus, Dalea 

 formosa. 

 Tetralonia argyrophila Cockerell, 1909. Entomologist 42: 147. 6. 

 atriventris (Smith). Minn, to Mass., south to Ga. Pollen: Unknown, but visits flowers of 



Aesculus, Astragalus, Lathyrus, Lupinus, Mertensia, Penstemon hirsutus, Robinia, 

 Vicia. 

 Melissodes atriventris Smith, 1854. Cat. Hym. Brit. Mus., v. 2, p. 310. i. 

 Synhalonia atriventris fuscipes Robertson, 1900. Acad. Sci. St. Louis, Trans. 10: 54. 9. 



Preocc. 

 Tetralonia robertsoni Cockerell, 1914. Ann. and Mag. Nat. Hist. (8) 13: 283. 9. N. name. 



Taxonomy: Robertson, 1897. Acad. Sci. St. Louis, Trans. 7: 353. cJ, 9. 



Biology: Rau, 1934. Acad. Sci. St. Louis, Trans. 28: 211 (nesting habits). 



