1994 Hymenoptera in America North of Mexico 



millefolium, Calockortus weedii, Chenopodium, Cirsium vulgare. Convolvulus, 

 Cordylanthus pilosus, Corethrogyne, Dicentra, Encelia califomica, Erigeron, 

 Eriodictyon trichocalyx, E. t. var. lanatum, E. parryi, Eriogonum elegans, E. 

 fasciculatum, Helianthus gracilentus, Hesperochiron califomicum, Lepidium 

 virginicum, Lotus aynericanus, L. hninistratus, L. scoparius, Monardella villosa, 

 Penstemon, Phacelia ramosissima, Stachys pycnantha, Stephanomeria cichoriacea, 

 Trichostema parishii, Turricula parryi, Verbena lasiostacliys, Viguiera multiflora. 

 Dianthidium dubium dilecium Timberlake, 1948. N. Y. Ent. Soc, Jour. 56: 152. 9, S. 



Taxonomy: Grigarick and Stange, 1968. Calif. Ins. Survey, Bui. 9: 42-43, map 2 (tax. 

 characters, geogr. and floral records). 



Biology: Kurd and Linsley, 1950. N. Y. Ent. Soc, Jour. 58: 247, 248 (nest, parasite). 

 dubium dubium Schwarz. South. Oreg. and north. Calif. (Coast Range, north of San Francisco; 

 Cascade Range; and west, slope of Sierra Nevada Mts.). Ecology: Nests are made of 

 resin and gravel attached to vegetation or rocks. Pollen: Apparently polylectic, visits 

 flowers of Bigelovia, Chamaebatia foliolosa, Clarkia biloba, C. cylindrica, C. 

 dudleyana, C. unguiculata, Collinsia tinctoria, Eriodictyon, Eriogonum latifolium 

 nudum, Gayophytum nuttallii, Lessingia leptoclada, Lotus americanus, L. nevadensis, 

 L. purshianus, Monardella lanceolata, Marrubium vulgare, Penstemon spectabilis, 

 Stachys ajugoides, Stephanomeria virgata, Trichostema lanceolatum, T. laxum, 

 Trifolium, Vicia. 

 Dianthidium dubium Schwarz, 1928. N. Y. Ent. Soc, Jour. 36: 405. 6,9. 



Taxonomy: Grigarick and Stange, 1968. Calif. Ins. Survey, Bui. 9: 42, 43-44, figs. 5, 138-140, 

 185, 195, map 29 (tax. characters, geogr. and floral records). 

 dubium mccrackenae Timberlake. Calif, (east slope. Sierra Nevada Mts.). Pollen: Unknown, 

 but visits flowers of E nostrum densifolium. 

 Dianthidium consiynile ynccrackenae Timberlake, 1943. N. Y. Ent. Soc, Jour. 51: 104. 9, 



S. 

 Dianthidium plenum convictorum Timberlake, 1943. N. Y. Ent. Soc, Jour. 51: 108. 9. 



Taxonomy: Grigarick and Stange, 1968. Calif. Ins. Survey, Bui. 9: 44-45, map 29 (tax. 

 characters, geogr. and floral records). 

 floridiense Schwarz. Fla. Ecology: Nests in borings. Pollen: Unknown but visits flowers of 

 Bidens, Sabal. 

 Dianthidium floridiense Schwarz, 1926. Amer. Mus. Novitates 226: 5. 6, 9. 

 Dianthidium floridenseC.) Michener, 1951. In Muesebeck, Krombein and Townes, U. S. 

 Dept. Agr., Agr. Monog. 2: 1143. 



Taxonomy: Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bui. 152: 16-17 (redescription). 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 272-273 (nest architecture, life 

 history). 

 heterulkei fraternum Timberlake. Tex., N. Mex., Ariz., Nev. Parasite: Anthrax irroratus Say. 

 Dianthidium fraternum fratemum Timberlake, 1943. N. Y. Ent. Soc, Jour. 51: 92. 6, 9. 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 273-274 (nest architecture, life 



history, parasite). 

 heterulkei heterulkei Schwarz. Calif. (Sierra Nevada Mts.), Oreg., Nev., Utah, Wyo. Ecology: 

 Constructs nests in natural depressions within volcanic outcroppings and possibly uses 

 lodgepole pine as source of resin. Parasite: Monodontomerus dementi Grissell. Pollen: 

 Polylectic, is known to collect pollen from flowers of Eriophyllum integrifolium, 

 Trifolium longipes, but also visits flowers of Aster, Chaenactis glabriuscula lanosa, 

 Chrysothamnus, Haplopappus suffruticosa, Solidago. 



Dianthidium heterulkei Schwarz, 1940. Amer. Mus. Novitates 1058: 6. 6, 9. 



Dianthidium heterulkei var. cornucopiana Schwarz, 1940. Amer. Mus. Novitates 1058: 8. 6. 



Dianthidium fratemum hirtulum Timberlake, 1943. N. Y. Ent. Soc, Jour. 51: 94. 6, 9. 



Taxonomy: Grigarick and Stange, 1968. Calif. Ins. Survey, Bui. 9: 45-46, figs. 159-161, 181, 

 194, map 30 (geogr. and floral records). —Clement, 1976. Wasmann Jour. Biol. 34: 16-18, 

 fig. 2 (larva). 



