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Anthidium utahense Swenk, 1914


Scientific Name: Anthidium utahense Swenk, 1914

Common Name: Utah Wool Carder Bee


Anthidium utahense Swenk, 1914: 23 [♂, ♀].

     Holotype . USA, Utah, Logan, by L. Bruner [UNSM].

Anthidium sagittipictum Swenk, 1914: 20 [♀]. Synonymy suspected by Schwarz (1927: 10); by Grigarick and Stange (1968: 3).

     Holotype . USA, Washington, Pullman, by C.V. Piper (Washington Exp. Sta. No. 127). [UNSM].

Anthidium divisum Cockerell, 1925: 350 [♀]. Synonymy by Grigarick and Stange (1968: 33).

     Holotype . USA, Utah, Salt Lake City, Parley Cañon, 24 June 1922, by E.P. Van Duzee [CAS no. 1733].

Anthidium divisum var. nanulum Cockerell, 1925: 350 [♀]. Synonymy by Grigarick and Stange (1968: 33).

     Holotype . USA, California, Monterey County, Bryson, 20 May 1920, by E.P. Van Duzee [CAS no. 1735].

Anthidium divisum var. ornatifrons Cockerell, 1925: 350 [♀]. Synonymy suspected by Schwarz (1927: 10); by Grigarick and Stange (1968: 33).

     Holotype . USA, California, Plumas County, Meadow Valley, at 3500-4000 ft., 15 june 1924, by E.C. Van Dyke [CAS no. 1734].

Anthidium brachyurum Cockerell, 1925: 357 [♂]. Synonymy suspected by Schwarz (1927: 9), of A. divisum Cockerell by Schwarz (1940: 2), by Grigarick and Stange (1968: 33).

     Holotype . USA, California, Cisco, July 1920, by H.E. Ricksecker [CAS no. 1738].


Taxonomic Notes: Swenk (1914: 23, 24) indicated that A. utahense Swenk was based on a material originally misidentified by Cockerell (1904: 57, 60) as the unknown male of A. palliventre Cresson.

DNA Barcode Index Number (BIN): BOLD:AAD6629 

Biology: Jaycox (1966) and Gonzalez and Griswold (2013) indicate that the nests are constructed in holes or crevices in the ground and consist of one to four individual cells; the former indicating that they will also accept artifical nests with holes oriented verically at ground level. The nest cells are constructed from plant trichomes collected from Cirsium and Artemisia (Jaycox 1966). Pebbles are used to plug the nest entrance (Gonzalez and Griswold 2013: 363). Jaycox (1966) reported that nests are attacked by cuckoo bees of the genus Dioxys Lepeletier and Serville (specifically D. productus productus (Cresson)), only one species of which, has been recorded from Canada (BC – see Sheffield and Heron 2019).

Distribution in Canada: Schwarz 1928 [BC]; Buckell 1950 [BC, as A. divisum Cockerell]; Michener 1951 [BC]; Grigarick and Stange 1968 [BC]; Hurd 1979 [BC]; Gonzalez and Griswold 2013 [BC]; Elwell et al. 2016 [BC]; Sheffield and Heron 2019 [BC].



Elwell SL, Griswold T, Elle E (2016) Habitat type plays a greater role than livestock grazing in structuring shrubsteppe plant–pollinator communities. Journal of Insect Conservation 20(3): 515-525.

Hurd PD (1979) Superfamily Apoidea. In: Krombein KV, Hurd Jr PD, Smith DR, Burks BD (Eds) Catalog of Hymenoptera in America North of Mexico. Smithsonian Institution Press, Washington, 2735 pp.

Sheffield CS, Heron JM (2019) The bees of British Columbia (Hymenoptera: Apoidea, Apiformes). Journal of the Entomological Society of British Columbia 115: 44-85.

Cockerell TDA (1925) Anthidiine bees in the collection of the California Academy of Sciences. Proceedings of the California Academy of Sciences, Fourth Series 14(15): 345-367.

Michener CD (1951) Family Megachilidae. In: Muesebeck CF, Krombein KV, Townes HK (Eds) Hymenoptera of America north of Mexico Synoptic Catalog. 2. United States Department of Agriculture Agricultural Monograph, Washington. Pp. 1136-1186.

Grigarick AA, Stange LA (1968) The pollen-collecting bees of the Anthidiini of California (Hymenoptera: Megachilidae). Bulletin of the California Insect Survey 9: 1-113.

Schwarz HF (1928) Anthidiinae collected mostly in Canada (Hymenop). The Canadian Entomologist 60(9): 212-217.

Cockerell TDA (1904) The bees of southern California. III. Bulletin of the Southern California Academy of Sciences 3: 56-60.

Gonzalez VH, Griswold TL (2013) Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168: 221-425.

Swenk MH (1914) Studies of North American bees. II. Family Stelididae. University Studies of the University of Nebraska 14(1): 1-36.

Buckell ER (1950) Record of bees from British Columbia: Megachilidae. Proceedings of the Entomological Society of British Columbia 46: 21-31.

Sociality: Solitary
Nesting: Cavity Renter, Ground
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Not Available

Distribution: British Columbia
Ecozone: Montane Cordillera, Western Interior Basin