Superfamily APOIDEA 1767 



Species Group Mesillae 



fedorica (Cockerell). Mich, to Minn., south to Tex. and east to N. C. Pollen: Unknown, but 

 visits flowers of Crataegus, Daucus, Pyracantha. 



Prosopis digitata wax. fedorica Cockerell, 1^09. Ann. and Mag. Nat. Hist. (8) 4: 27. S. 



Prosopis grossicomis Swenk and Cockerell, 1910. Ent. News 21: 67. i. 

 granulatus (Metz). Nev., Calif., ?Colo. 



Prosopis nidbeckiae var. granulatus Metz, 1911. Amer. Ent. Soc, Trans. 37: 114. 6. 

 labiatifrons (Cockerell). Ga. Possibly a synonym of H. cressoni cressoni (Cockerell). 



Prosapis labiatifrons Cockerell, 1896. Psyche 7 (sup.): 437. i. 

 mesillae cressoni (Cockerell). Transcont. from south. Canada to north. Mexico. Ecology: Nests 

 in twigs of Symphoricarpos. Parasite: Rhydinofoenus floridanus bradleyi Townes, R. 

 visaliae Bradley. Pollen: Polylectic, visits a wide variety of flowers including Achillea 

 millaefolium, A. lanulosa, Adenostoma fasciculatum, Alyssum maritinium, Amorpha, 

 Anethum, Anthemis cotula, Apium graveolens, Apocynum, Aruncus, Asclepias 

 fascicularis, A. mexicana, A. parishii, Aster adscendens delectabilis, Atriplex 

 semibaccata, Baccharis douglasii, B. emoryi, B. glutinosa, B. pilularis, Blephilia, 

 Boltonia, Brassica oleracea, Cacalia, Capsella, Cardanmie, Castanea, Castanopsis, 

 Ceanothus crassifolius, C. cuneatus, C. integerrimus, Cerastium, Chamaebatia foliolosa, 

 Chrysothamnus consimilis, C. nauseosus speciosus, Cicuta, Cirsium vulgare, Cleome, 

 Cleomella obtusifolia, Comus, Crataegus, Cryptantha angustifolia, Cryptotaenia, 

 Datura meteloides, Daucus carota, Descurainia sophia, Encelia farinosa, Epilobium, 

 Eremocarpus setigerus, Erigeron canadensis, Eriodictyon califomicum, Eriogonum 

 elongatum, E. gracile, E . fasciculatum, E. nodosum, E. nudum, E. saxatile, E. 

 subscaposum, E. vimiyieum, E. wrightii, Eriophyllum confertiflorum, Eryngium 

 aristatulum, Eschscholzia caespitosa, E. califomica, Eulophus, Eupatorium, Euphorbia 

 albomarginata, Evonymus, Foeniculum vulgare, Fragaria, Galium, Geum, Gnaphalium 

 califomicum, Gutierrezia califomica, G sarothrae, Haplopappus arborescens, H. 

 palmeri, Heliotropium curvassavicum, Heracleum, Heteromeles arbutifolia, Holodiscus 

 discolor. Hydrangea, Krigia, Lasthenia chrysostoma, L. gracilis, Lepidium, 

 Lepidospartum, Lotus americanus, Lupinus paynei, Lycopus, Malus, Malva, Maytenus 

 boaria, Melilotus alba, Mentha pulegium, Monardella lanceolata, Nemophila menziesii, 

 Oenothera tanacetifolia, Osmorrhiza, Oxypolis, Parthenium, Pastinaca, Perideridia 

 gairdneri, Phacelia distans, P. ramosissima, Philibertia heterophylla, Polygonum, 

 Polytaenia, Potentilla glandulosa, Prosopis, Prunus ilicifolia, Pycnanthemum, 

 Pyracantha, Rhamnus califomica, R. crocea, Rhus diversiloba, Rosa, Rubus, Salix 

 exigua, S. goodingii, S. laevigata, S. lasiolepis, S. nigra. Salvia, apiana, S. mellifera, S. 

 officinalis, S. stachyoides, Sanicula, Schinus molle, Scrophularia califomica, Sedum, 

 Sisymbrium irio, Sium, Solidago califomica, S. occidentalis, Stanleya pinnata, Swertia 

 parryi, Taenidia, Tamarix gallica, Tetradymia canescens, Thaspium, Trichostema 

 lanceolatum, T. parishii, Valerianella, Verbena lasiostachys, Veronica, Viburnum, 

 Zizia. 



Prosopis pygmaea Cresson, 1869. Boston Soc. Nat. Hist., Proc. 12: 272. 6- Preocc. 



Prosopis cressoni Cockerell, 1907. Ann. and Mag. Nat. Hist. (7) 20: 131. N. name. 



Prosopis pasadenae Cockerell, 1910. Ann. and Mag. Nat. Hist. (8) 5: 30. S, 9. 



Prosopis telepora Lovell, 1911. Ent. News 22: 213. 9,6. 



Hylaeus laciniatus Cockerell and Sumner, 1931. Amer. Mus. Novitates 490: 9. 3. 



Hylaeus repolitus Cockerell and Sumner, 1931. Amer. Mus. Novitates 490: 13. 9. 



Biology: Rau, 1922. Acad. Sci. St. Louis, Trans. 24: 36 (as pygmaeus and cressoni). —Hicks, 

 1926. Colo. Univ., Studies 15: 221. 



Morphology: Blum and Bohart, 1972. Ent. Soc. Amer., Ann. 65: 274 (mandibular gland 

 pheromones). 

 mesillae mesillae (Cockerell). Nebr., Kans., Tex. west to Nev., Calif.; Mexico (Baja California, 

 Chihuahua, Coahuila, Nuevo Leon and Sonora). Populations in Colo, and Utah are 

 largely sympatric with those of the nominate subspecies and hybridization occurs in 

 these areas. Pollen: Unknown, but visits flowers of Croton califomicus. Datura 



