Superfamily APOIDEA 2073 



Genus CHALICODOMA Subgenus CHELOSTOMOIDES Robertson 



Chelostomoides Robertson, 1901. Canad. Ent. 33: 231. 



Type-species: Chelostoma rugifrons Smith. Monotypic and orig. desig. (.=Megachite 

 rufima7ius Robertson). 

 Oligotropus Robertson, 1903. Amer. Ent. Soc, Trans. 29: 168. 



Type-species: Oligotropus campanulae Robertson. Monotypic and orig. desig. 

 Gnathodon Robertson, 1903. Amer. Ent. Soc, Trans. 29: 168. Preocc. 



Type-species: Megachile georgica Cresson. Monotypic and orig. desig. 

 Sarogaster Robertson, 1918. Ent. News 29: 92. Proposed to replace Gnathodon Robertson. 



Taxonomy: Michener, 1953. Kans. Univ. Sci. Bui. 35: 1059, figs. 162-164 (larva.) —Mitchell, 

 1956. Pan-Pacific Ent. 32: 134-138 (revised key to spp.). — Medler and Lussenhop, 1968. 

 Wis. Univ. Res. Bui. 274: 30-32 (Wis. spp.). 

 adelphodonta (Cockerell). Ariz.; Mexico (Baja California). Pollen: Unknown, but visits flowers 

 of Allionia, Kallstroemia grandiflora. 

 Megachile adelphodonta Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 548. 3. 

 Megachile (Chelostomoides) tucsonensis Mitchell, 1956. Pan-Pacific Ent. 32: 133. 9. 



angelarum (Cockerell). B. C, Wash., Oreg., Calif., Nev., Ariz. Parasite: Sapyga angustata 

 (Cress.). Pollen: Polylectic, visits a wide variety of flowers including Achillea 

 millefolium, Adenostegia villosa, Amorpha califomica, Aster adscendens, A. canescens, 

 Astragalus parishii, Brassica incana, Calycadenia multiglandulosa, Centaurea 

 solsitialis, Cercidium torreyanum, Chaynaenerion aiignstifolium, C lirysopsis fastigiata, 

 C . fremontii, C. villosa, Chrysothaynnus nauseosus, Clarkia uyiguiculata, Cirsium 

 vulgare, Colliyisia tiyictoria, Cordylayithus filifolius, C. yieviyiii, C. pilosus, C. rigidus, 

 Corethrogyyie filagiyiifolia, Cryptayitha ambigua, C. deyiticulata, C. intermedia, Diceyitra 

 chrysantha, Eyicelia fariyiosa, Eriodictyon, Eriogoyium fasciculata, E.f. var. polifoliuyn, 

 E. latifolium var. yiudtmi, E. subscaposuyn, E. wrightii, Erysiynum asperum, Frayiseria, 

 Gerayiium richardsoyiii, Gilia capitata, Glycyrrhiza lepidota, Griyidelia camponiyn, G. 

 hallii, Haplopappus arboresceyis, Heliayithus gracilentiis, Heliotropium cun'assavicum, 

 Horkelia bemardiyia, H. bolayideri var. parryi, Lathyrus, Lessiyigia leptoclada, Loyiicera 

 interr^ipta, Lotus americayius, L. argophyllus, L. crassifolius, L. davidsoyiii, L. glaber, L. 

 huynistratus, L. nevadensis, L. obloyigifolius, L. scopariiis, L. torreyi, Lupinus 

 aiistromoyitayius, L. loyigipes, Marrubivm vulgare, Melilotus alba, M. officiyialis, 

 Meyitzelia laevicaulis, Monardella layiceolata, M. liywides, M. styicta, Peyistemoyi 

 bridgesii, P. griyiyiellii, P. palmeri, P. rothrocki, Perideridia gairdneri, Phacelia 

 heterophylla, P. imbricata, P. raynosissiyna, Poteyitilla bemardiyia, P. glayidulosa, 

 rayiuyiculus, Rhaynyius califomica, Rudbeckia califomica. Salvia apiayia, S. 

 pachyphylla, Solidago califomica, S. confiyiis, S. occideyitalis, Stachys albeyis, S. 

 pycyiantha, Swertia parryi, Symphoricarpos, Trichostema laxum, T. parishii, Trifolium 

 variegatum, Verbeyia califomica, V. prostrata, Vitex. 



Megachile ayigelanmi Cockerell, 1902. South. Calif. Acad. Sci., Bui. 1: 70. 9. 

 browni (Mitchell). Ariz., south. Calif.; Mexico (Baja California). Pollen: Unknown, but visits 

 flowers of Acacia greggii, Asclepias, Canotia, Dalea, Frayikenia palmeri, Opuyitia, 

 Prosopis juliflora. 



Megachile (Chelostomoides) browyii Mitchell, 1934. Amer. Ent. Soc, Trans. 53: 354. 6. 



Megachile (Chelostomoides) felipiayia Mitchell, 1937. Amer. Ent. Soc, Trans. 63: 405. 9. 



Taxonomy: Timberlake, 1957. Pan-Pacific Ent. 33: 132 (synonymy). 

 campanulae campanulae (Robertson). Que. and Mass. to Fla., west to Iowa, Wis., Minn., 



Nebr., Kans. and Tex. Ecology: Nests in borings. Pollen: Unknown, but visits flowers of 

 AsclepiaSf Baptisia tiyictoria, Caynpanula aynericayia, C. campayiulae, C. rotundifolia, 

 Desynodiinn cayiadeyise, Epilobium ayigustifolium, Galactia, Heliayithus, Lobelia, 

 Lythruyn, Malva sylvestris, Melilotus, Nepeta, Oeyiothera, Psoralea, Pycnayitheynum, 

 Rudbeckia, Solidago, Strophostyles, Syynphoricarpos, Verbeyia, Veroyiica stricta. 

 Oligotropus caynpanulae Robertson, 1903. Amer. Ent. Soc, Trans. 29: 171. 9, 6. 



Biology: Rau, 1926. Acad. Sci. St. Louis, Trans. 25: 202 (nest). — Krombein, 1967. 

 Trap-nesting wasps and bees, p. 341 (life history, nest architecture). —Medler and 

 Lussenhop, 1968. Wis. Univ. Res. Bui. 274: 31 (nest). 



