Perdita perplexa Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 19, figs.

739, 740, 848. 9, .

phaceliae Cockerell. Syn. of marcialis Cockerell.

phymatae Cockerell. N. Mex., Ariz. On flowers of Aplopappus and Gutierrezia. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 92. f.

*physalidis Timberlake. Calif. (Riverside Co.). On flowers of Physalis. (Perdita)

Perdita physalidis Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 374, figs. 454, 455, 511. 9, .

*picturata Timberlake. Tex. (Victoria and Aransas Counties). (Perdita) Perdita picturata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 50, figs. 560, 561, 682. 9, ♂.

*placida Timberlake. Calif. (Inyo Co.). (Perdita)

Perdita placida Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 339. . *plucheae Timberlake. Calif. (Colorado Desert), Ariz. On flowers of Pluchea and Tamarix. (Perdita)

Perdita plucheae Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 69, figs. 584, 585, 694. 9, ♂.

*polita Timberlake. Calif. On flowers of Hemizonia pungens. (Perdita) Perdita polita Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 332, figs. 400, 401, 484. 9, ♂.

polygonellae Timberlake. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 40, figs. 552, 553, 678. ♂. *polytropica obsoleta Timberlake. Ariz. On flowers of Carnegiea and Echinocactus. (Perdita)

Perdita polytropica obsoleta Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 59., .

*polytropica_polytropica Timberlake. Southern Calif., Ariz.; Mexico (Baja California). Visits many flowers. (Perdita)

Perdita_polytropica polytropica Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 57, figs. 795, 796, 876. 9, ♂.

portalis Timberlake. N. Mex. (Macroteropsis).

*primula Timberlake. Calif. (Indio). On flowers of Melilotus. (Perdita) Perdita primula Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 347, figs. 420, 421,494. 6.

*prionopsidis Timberlake. Kans. (Reno and Montgomery Counties). On flowers of Aplopappus (Prionopsis), Boltonia, Helianthus, Heterotheca and Isopappus. (Perdita)

Perdita prionopsidis Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 104, figs. 632, 633, 718. 9, 3.

*proxima Timberlake. Calif. (Mohave Desert). On flowers of Aplopappus, Chrysothamnus, Cleomella, Solidago. (Perdita)

Perdita proxima Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 322, figs. 380, 381, 476. 9, 3.

punctata Cockerell. Syn. of halictoides Smith.

punctifera Cockerell. Ariz., southern Calif. Uses pollen of Mentzelia pumila. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 26, figs. 747, 748, 852. 9, 6.

*punctifrons Timberlake. Calif. (Los Angeles and San Bernardino Counties). On flowers of Lessingia. (Perdita)

Perdita punctifrons Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 350, figs. 426, 427, 497. 9, .

*punctulata Timberlake. Southern Calif., Ariz.; Mexico (Baja California, Sonora). On flowers of Baccharis, Larrea, Melilotus, Prosopis. (Perdita)

Perdita punctulata Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 362, figs. 440, 441, 504. ♂, .

purpurascens Timberlake. On flowers of Aster, Brazoria, Gaillardia, Monarda. (Cockerellia)

Taxonomy: Timberlake, 1958, loc. cit. supra, p. 382. .

rectangulata Cockerell. Colo., Idaho. On flowers of Gutierrezia and Solidago. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 82, figs. 602, 603, 703. 9, ô.

rehni rehni Cockerell, changed status. N. Mex., western Tex.; Mexico (Chihuahua). On flowers of Nolina. (Perdita)

Perdita rehni Cockerell. Reduced to subsp. rank (teste Timberlake, 1962, loc. cit. supra, p. 50, figs. 789, 790, 873. 9, 3. Another subsp. occurs in Coahuila, Mexico.

*retusa Timberlake. Ariz., Calif. On flowers of Chrysothamnus. (Perdita) Perdita retusa Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 86, figs. 608, 609, 706. 4, ô.

rhodura Cockerell. Ariz., N. Mex., Nebr. On flowers of Aplopappus (?), Gutierrezia, Zinnia. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 52, figs. 564, 565, 684. 9, ô.

rhois reducta Cockerell. Calif. On many flowers. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 54. ?, ô.

rhois rhois Cockerell. Southern Calif.; Mexico (Baja California). Visits many flowers. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 53, figs. 791, 792, 874. 9, 3.

*rivalis Timberlake. Calif. On flowers of Aster, Erigeron. (Perdita)

Perdita rivalis Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 349, figs. 424, 425, 496. 9, ♂.

ruficauda ornata Timberlake. A subsp. of trisignata Cockerell.

ruficauda ruficauda Cockerell. Syn. of trisignata trisignata Cockerell.

*scitula antiochensis Timberlake. Calif. (Antioch, Oakley). On flowers of Eriogonum, Gutierrezia, Heterotheca, and Lessingia. (Perdita) Perdita scitula antiochensis Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 80, figs. 598, 599, 701. 9, ♂.

*scitula scitula Timberlake. Calif. (Inyo Co.). On flowers of Chrysothamnus nauseosus. (Perdita)

Perdita scitula scitula Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 79. 4, ô

*scotti Timberlake. Calif. (Kern Co.). (Perdita)

Perdita scotti Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 338, figs. 412, 413, 490. 9, ♂.

*scutellaris Timberlake. Southern Calif. On flowers of Coldenia and Eriogonum. (Hetero perdita)

Perdita scutellaris Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 89, figs. 829, 830, 893, text fig. B. 4, ô.

semicrocea Cockerell. Ariz. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 35, figs. 761, 762, 859. 9, 8.

*semilutea Timberlake. Calif. (Riverside Co.). On flowers of Eriogonum thomasii. (Perdita)

Perdita semilutea Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 81, figs. 819, 820, 888. 6.

senecionis Cockerell. N. Mex. (Las Cruces). On flowers of Senecio. (Perdita) Taxonomy: Timberlake, 1960, loc. cit. supra, p. 100. 9.

*separata Timberlake. Tex. (Zapata Co.). (Perdita)

Perdita separata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 106. . sexmaculata sexmaculata Cockerell, changed status. Ariz., N. Mex., Tex., Kans., Colo.; Mexico (Chihauhua, Durango, Hidalgo). Visiting many flowers. (Perdita)

Taxonomy: Timberlake, 1958, loc. cit. supra, p. 367, figs. 444, 445, 506. , .-Timberlake, 1962, loc. cit. supra, p. 101 (reduced to subsp. rank; another subsp. occurs in Baja California).

*similis pascoensis Timberlake. Wash. (Pasco). (Perdita)

Perdita similis pascoensis Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 324, figs. 384, 385. ô, .

*similis similis Timberlake. N. Mex. and Ariz. to Utah, Wyo. and Idaho. On flowers of Aplopappus, Chrysothamnus, Erigeron, Gutierrezia. (Perdita)

Perdita similis similis Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 323, figs. 382, 383, 477. 9, ♂.

*snellingi Timberlake. Calif. (Kern and Inyo Counties). On flowers of Chrysothamnus, Euphorbia, Gutierrezia. (Perdita)

Perdita snellingi Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 46, figs. 781, 782, 869. 9, ♂.

snowii Cockerell. Colo. On flowers of Grindelia and Aster. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 83, figs. 604, 605, 704. o, 3.

*soluta Timberlake. Calif. (Los Angeles Co.). On flowers of Malacothrix. (Pygoperdita)

Perdita soluta Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 394, fig. 520. 6.

stephanomeriae Timberlake. On flowers of Dalea. (Allomacrotera, transf. from Procockerellia)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 131, figs. 658, 659, 731. ô.

*stepheni Timberlake. On flowers of Monarda. (Perdita)

Perdita stepheni Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 29, figs. 536, 537, 669. *.

stottleri flavida Swenk and Cockerell. Nebr. to Oreg., Colo. On flowers of Chrysothamnus. (Perdita)

stottleri stottleri Cockerell. Delete Colo. from range. (Perdita)

subfasciata Cockerell. Ariz., Nev., Utah. On flowers of Gutierrezia. (Perdita) Taxonomy: Timberlake, 1962, loc. cit. supra, p. 45, figs. 779, 780, 868. 9, 3.

swenki Crawford. Mich., Ill., Wis., Minn., N. Dak., Nebr. On flowers of Grindelia, Helianthus, Liatris, and Solidago. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 104, figs. 630, 631, 717. 9, ♂.

*swezeyi Timberlake._Calif., Nev. On flowers of Erigeron. (Perdita) Perdita swezeyi Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 348, figs. 422, 423, 495. 9, ♂.

*texana ablusa Timberlake. N. Mex., Tex. On flowers of Opuntia. (Macrotera)

Perdita texana ablusa Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 376. f, 3.

texana texana (Cresson), changed status. Delete N. Mex. from range (Sup.

1). (Macrotera)

Perdita texana (Cresson). Reduced to subsp. rank (teste Timberlake, 1958, loc. cit. supra, p. 376).

*thelypodii Timberlake. Calif. (Inyo and Los Angeles Counties). On flowers of Cleomella, Thelypodium. (Perdita)

Perdita_thelypodii Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 354, figs. 432, 433, 500. 9, .

*thermophila thermophila Timberlake. Southern Calif. On flowers of Eriogonum. (Perdita)

Perdita_thermophila thermophila Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 77, figs. 815, 816, 886. 9, ♂.

*thermophila trilobata Timberlake. Ariz., southern Calif. On flowers of Eriogonum. (Perdita)

Perdita thermophila trilobata Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 78. 9, 3.

timberlakei Cockerell. Southern Calif. Collects pollen of Eriogonum. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 70, figs. 807, 808, 882. 9. townsendi Cockerell. (Perdita)

Taxonomy: Timberlake, 1958, loc. cit. supra, p. 320, figs. 376, 377, 474. 3.

*translineata Timberlake. Tex. (Van Zandt Co.). On flowers of Eriogonum multiflorum. (Perdita)

Perdita translineata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 93, figs. 618, 619, 711. 6.

tridentata Stevens. N. Dak., Nebr., Kans. On flowers of Aplopappus and Helianthus. (Perdita)

Taxonomy: Timberlake, 1960, loc. cit. supra, p. 118, figs. 650, 651, 727. f, ô.

*trifida Timberlake. Calif. (Mohave Desert). On flowers of Aplopappus acradenius. (Perdita)

Perdita trifida Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 37, figs. 546, 547, 675. ♂.

*trimaculata_Timberlake. Southern Calif., Ariz. On flowers of Chrysothamnus and Gutierrezia. (Perdita)

Perdita trimaculata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 62, figs. 574, 575, 689. 9, ♂.

trisignata ornata Timberlake. (Hesperoperdita)

Perdita ruficauda ornata Timberlake. Changed to a subspecies of trisignata by Timberlake's synonymy of ruficauda ruficauda under trisignata trisignata (1960, loc. cit. supra, p. 127).

trisignata trisignata Cockerell, changed status. (Hesperoperdita)

Perdita trisignata Cockerell. Reduced to subsp. rank (teste Timberlake, 1960, loc. cit. supra, p. 127).

Perdita ruficauda ruficauda Cockerell (syn. by Timberlake, 1960, loc. cit. supra, p. 127).

*valida Timberlake. N. Mex. (Mesilla). (Perdita)

Perdita valida Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 106. . *variegata pura Timberlake. Tex., Kans. At flowers of Monarda. (Perdita) Perdita variegata pura Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 31. 9, 5.

*variegata variegata Timberlake. Kans. On flowers of Monarda. (Perdita) Perdita variegata variegata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 30, figs. 538, 539, 670. 9, ♂.

*varleyi niveipennis Timberlake. Calif. (San Benito Co.). Collects pollen of Eriogonum. (Perdita)

Perdita varleyi niveipennis Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 86., 3.

*varleyi varleyi Timberlake. Southern Calif. Collects pollen of Eriogonum.

(Perdita)

Perdita varleyi varleyi Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 85, figs. 825, 826, 891, 904. ♂, d.

*versuta Timberlake. Tex. (Kingsville). (Perdita)

Perdita versuta Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 105, figs. 843, 844, 900. 6.

*vestita Timberlake. Utah (Arches Natl. Mon.). (Perdita)

Perdita vestita Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 316, figs. 370, 371, 471. 9, ♂.

*vicina Timberlake. Nev. (Charleston Mts., Clark Co.). On flowers of Fallugia paradoxa. (Perdita)

Perdita vicina Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 31, figs. 753, 754, 855. 6.

*viridinotata Timberlake. N. Mex. (Alamogordo). (Perdita)

Perdita viridinotata Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 16, figs. 735, 736, 846. o, ♂.

*wasbaueri Timberlake. Calif. (Colorado Desert). On flowers of Coldenia. (Heteroperdita)

Perdita wasbaueri Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 126, figs. 656, 657, 730. 9, ♂.

wheeleri Timberlake. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 32, figs. 755, 756, 856. . wilmattae miricornis Cockerell, changed status. Colo., Wyo., Utah, Ariz. On flowers of Engelmannia, Stanleya. (Perdita)

Perdita miricornis Cockerell. Reduced to subsp. rank (teste Timberlake, 1958, loc. cit. supra, p. 360).

wilmattae wilmattae Cockerell, changed status. Colo., Utah, Nev. On flowers of Cleome. (Perdita)

Perdita wilmattae Cockerell. Reduced to subsp. rank (teste Timberlake, 1958, loc. cit. supra, p. 359, figs. 436, 437, 502).

wootonae Cockerell. N. Mex., Colo., Kans., Nebr. Visits flowers of Mentzelia. (Perdita)

Taxonomy: Timberlake, 1962, loc. cit. supra, p. 15, figs. 733, 734, 845. 9,

ô.

*xanthochroa Timberlake. Colo., Utah, Idaho. At flowers of Sphaeralcea and Stanleya. (Perdita)

Perdita xanthochroa Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 24, figs. 530, 531, 666. 9, 3.

*xanthodes Timberlake. Calif. (Mohave Desert). At flowers of Aplopappus cooperi. (Perdita)

Perdita xanthodes Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 24, figs. 528, 529, 665. 9, ♂.

*xerophila discrepans Timberlake. Nev. Collects pollen of Eriogonum. (Perdita)

Perdita xerophila discrepans Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 84, figs. 823, 824, 890. 4, ô.

*xerophila fuscicornis Timberlake. Calif. (Inyo Co.). Collects pollen of Eriogonum. (Perdita)

Perdita xerophila fuscicornis Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 84, fig. 903. 9, 6.

*xerophila xerophila Timberlake. Southern Calif., Ariz. Collects pollen of Eriogonum. (Perdita)

Perdita xerophila xerophila Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 82, fig. 902. 9, ♂.

*yosemitensis Timberlake. Calif. (Mariposa, Tulare, Fresno, and ? Placer Counties). On flowers of Eriogonum. (Perdita)