2028 Hymenoptera in America North of Mexico 



Salvia pilosa, Solidago californica, Spliaemlcea ambigna, Viguiem nevadensis. 

 Predator: Cymatodera sp., Tricliodes hoiiii Wolcott and Chapin. Another subspecies, 

 crassa Ckll., occurs in Mexico (Baja California). 

 Heriades meliloti Cockerell, 1897. Ann. and Mag. Nat. Hist. (6) 20: 141. cJ, 9. 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 288-290 (nest architecture, larval 

 food, life history, supersedure, parasites and predators). 

 occipitalis Michener. South. Ariz., west. Tex.; Mexico (Sonora, Baja California). Ecology: 

 Readily nests in trap-nests. Parasite: Chrysura sonorensis (Cam.), Nemognaiha 

 nigripennis LeC. Predator: Pyemotes ventricostis (Newport), Trichodes Iionii Wolcott 

 and Chapin. 

 Ashmeadiella (Ashmeadiella) occipitalis Michener, 1939. Amer. Midland Nat. 22: 22. 9,6. 



Taxonomy: Michener, 1954. Kans. Ent. Soc, Jour. 27: 76 (geogr. records, tax. characters of 

 female). 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 290-294, pi. 17, fig. 78 (nest 



architecture, larval food, life history, male production, supersedure, parasites, predators). 

 opuntiae (Cockerell). Tex. to south. Calif., Utah and Colo.; north. Mexico (Sonora). Parasite: 

 A7ifhrax irroratiis Say, Chrysura sp., Leiicospis affinis Say, Melittobia chalybii Ashm. 

 Pollen: Oligolege of Cactaceae, analyzed pollen masses (4) contained 95.2 per cent 

 Opuntia pollen of the subgenus Cylindropuntia and 4.8 per cent pollen of the subgenus 

 Platyopiintia; obtains pollen and nectar from flowers of Cactaceae including 

 Echiiiocactus cylindracens, Echinocereus engelmannii, Ferrocactus acanthodes, 

 Opinitia ecliinocarpa, 0. megacarpa, 0. occidenfalis, 0. parryi, 0. vaseyi, but also visits 

 other flowers for nectar including Clirysotharnnus, Penstemon, Viguiera nevadensis. 

 Predator: C ymatodera sp. 



Heriades opuntiae Cockerell, 1897. Ann. and Mag. Nat. Hist. (6) 20: 139. 9. 



Aslivieadiella subiiiaxinia Michener, 1936. Amer. Mus. Novitates 875: 3. 6. 



Ashvieadietla arizonensis Michener, 1936. Amer. Mus. Novitates 875: 3. 6. 



Taxonomy: Michener, 1943. Pan-Pacific Ent. 19: 97. — Hurd and Michener, 1955. Calif. Ins. 

 Survey, Bui. 3: 192 (synonymy). 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 294-295 (nest architecture, larval 

 food, life history, parasite). 

 pronitens (Cockerell). Colo., Wyo. 



Titusella pronitens Cockerell, 1906. Amer. Mus. Nat. Hist., Bui. 22: 446. 9. 

 prosopidis (Cockerell). Tex. to south. Calif.; north. Mexico, deserts. Pollen: Apparently an 



oligolege of Prosopsis including P. glandulosa var. torreyanum, P. piibescens, but visits 

 other flowers presumably for nectar including Acacia greggii, Cryptantha barbigera, 

 Heliotropium curassavicum, Larrea tridentata, Melilotus, Pluchea sericea, Salix nigra, 

 Sphaei-alcea ambigua. 

 Heriades prosopidis Cockerell, 1897. Ann. and Mag. Nat. Hist. (6) 20: 140. 9 (6 misdet.). 

 Ashmeadiella schivarzi Titus, 1904. Ent. Soc. Wash., Proc. 6: 98. 9, 6. 

 Ashmeadiella subangusta Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 588. 9. 



Taxonomy: Hurd and Michener, 1955. Calif. Ins. Survey, Bui. 3: 161 (synonymy). 

 rufipes Titus. South, and east. Calif., north. Mexico, deserts. Parasite: Monodontomerus 



anthidii (Ashm.), Stelis sp. Pollen: Unknown, but visits flowers o{ Abronia, Cryptantha 

 barbigera, C. intermedia, Dalea enioryi, D. mollis, Heliotropium curassavicum, H. c. 

 var. oculatuni, Palafoxia linearis, Pedis papposa, Petalonyx thurberi, Tidestroniia 

 oblongiflora. 

 Ashmeadiella rufipes Titus, 1904. Ent. Soc. Wash., Proc. 6: 99. 9. 

 Ashmeadiella haematopoda Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 555. 9. 

 Ashmeadiella rhodopus Michener, 1936. Pan-Pacific Ent. 12: 59. 6, 9. 



Taxonomy: Michener, 1936. Pan-Pacific Ent. 12: 58. 9, 6. —Hurd and Michener, 1955. Calif. 

 Ins. Survey Bui. 3: 175-177 (synonymy). 



