1916 Hymenoptera in America North of Mexico 



eriastri Timberlake. South. Calif, (cismontane). Pollen: Collects pollen from the flowers of 

 Eriastrnm including E. virgatum, but visits other flowers for nectar including 

 Cryptantha intermedia, Eriogonum fasciculatum, Gilia. 

 Perdita eriastri Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 233, figs. 40, 993, 994, 1140. 

 9,6. 

 eriastri var. fusciventris Timberlake. South. Calif. (Palm Springs). Pollen: Collects pollen from 

 flowers o{ Eriastnon virgatum. A specimen similar to the holotype has been collected 

 in Arroyo Seco, Los Angeles County at the flowers oi Eriodictyon parryi. 

 Perdita eriastri var. fusciventris Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 235. 9. 

 eucnides eucnides Timberlake. Calif. (Inyo County), Nev. (Churchill County). Pollen: 



Polylectic, collects pollen from the flowers of Cowania mexicana var. stansburiana, 

 Dalea polyadenia, Eucnide urens, Larrea tridentata, but also visits other flowers 

 including Eriogonum inflatum possibly for nectar. 

 Perdita eucnides eucnides Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 301, figs. 64, 1061, 

 1062, 1174. S, 9. 

 eucnides platyzona Timberlake. Ariz. (Yuma County), south. Calif. (Colorado Desert); Me.xico 

 (Baja California). Pollen: Polylectic, visits flowers of Acacia greggii, Lan-ea tridentata, 

 Pluchea sericea, Sesuviu^n verrucosum. 

 Perdita euc7iides platyzona Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 304. 9,6. 

 euzonata Timberlake. Ariz. (Painted Desert). Pollen: Unknown, but visits flowers of 

 Eriogonum aureum. 

 Perdita euzonata Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 295. 9. 

 exclamans Cockerell. West. Tex. to south. Calif. (Colorado and Mojave Deserts) and south 



Nev. (Clark County); Mexico (Baja California and Sonora). Pollen: Collects pollen from 

 the flowers of Prosopis, but also visits other flowers presumably for nectar including 

 Baccharis, Cercidium florid um, Dithyrea wislizeni, Lan-ea tridentata, Melilotus, 

 Mimosa, Phoradendron. 

 Perdita nitidella var. exclamans Cockerell, 1895. Psyche 1 (sup.): 5. 6. 



Taxonomy: Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 141, 157, 158, 320-323, figs. 70, 1065, 

 1066, 1176. 6, 9 (key, redescription, geogr. and floral records). 

 exigua becki Timberlake. Nev. (Nye and White Pine Counties). 



Perdita exigua becki Timberlake, 1971 Calif. Univ. Pubs. Ent. 66: 44. 9, 6. 

 exigua exigua Timberlake. Calif. (Hallelujah Junction). 



Perdita exigua Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 278, figs. 1043, 1044, 1165. 9, 

 6. 



Taxonomy: Timberlake, 1971. Calif. Univ. Pubs. Ent. 66: 44 (tax. status). 

 eximia Timberlake. Ariz. (Maricopa and Yuma Counties), south. Calif. (Colorado and Mojave 

 Deserts), Nev. (Esmeralda County). Pollen: Possibly an oligolege of Phacelia including 

 P. crenulata, but visits a variety of other flowers including Acacia greggii, Camisso7iia 

 clavaeformis, Cryptantha angustifolia, Cercidium florid um, Dalea schottii, Encelia, 

 Eriogonum inflatum, E. thomasii, Heliotropium curassaricutn, Iso7neris arborea, 

 Larrea tridentata, Prosopis juliflora. 

 Perdita eximia Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 255, figs. 49, 1019, 1020, 1153. 

 9,6. 



Taxonomy: Timberlake, 1968. Calif. Univ. Pubs. Ent. 49: 145 (key). 

 eysenhardtiae Timberlake. Tex. (Alpine), Ariz. (Cochise and Santa Cruz Counties); Mexico 

 (Distrito Federal, Durango and Hidalgo). Pollen: Unknown, but visits flowers of 

 Baccharis glutinosa, Eysenhardtia polystachya. 

 Perdita eysenhardtiae Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 215. 9. 

 falcata Timberlake. Calif. (Inyo County). Pollen: Unknown, but visits flowers of Dalea 

 fremontii, Encelia farinosa, Gilia, Sphaeralcea. 

 Perdita falcata Timberlake, 1964. Calif. Univ. Pubs. Ent. 28: 161, figs. 2, 909, 910, 1098. 9, 

 6. 



