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Anthidium utahense Swenk, 1914
Anthidium sagittipictum Swenk, 1914; Anthidium divisum Cockerell, 1925; Anthidium divisum var nanulum Cockerell, 1925; Anthidium divisum var ornatifrons Cockerell, 1925; Anthidium brachyurum Cockerell, 1925

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Anthidium
Subgenus: Anthidium

Anthidium utahense FEM mm
© Copyright Laurence Packer 2014 · 7
Anthidium utahense FEM mm

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Anthidium utahense MALE mm
© Copyright Laurence Packer 2014 · 7
Anthidium utahense MALE mm
Anthidium utahense, male, S8 apex profile, VG
© Kimberly Huntzinger, 2007 · 2
Anthidium utahense, male, S8 apex profile, VG

Anthidium utahense
Hartmut Wisch · 1
Anthidium utahense
Anthidium utahense, male, T6, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium utahense, male, T6, VG

Anthidium utahense, male, S6, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium utahense, male, S6, VG
Anthidium utahense, male, S7, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium utahense, male, S7, VG

Anthidium utahense, male, S8, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium utahense, male, S8, VG
Anthidium utahense, female, T6, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium utahense, female, T6, VG
Identification
Extracted from THE POLLEN-COLLECTING BEES OF THE ANTHIDIINI OF CALIFORNIA (Hymenoptera: Megachilidae) by GRIGARICK A., A. (1968).

Anthidium utahense Swenk, 1914. Nebr. Univ. Studies, 14:23. Holotype 3, Logan, Utah (NU). Anthidium sagittipictum Swenk, 1914. Nebr. Univ. Studies, 14:20. Holotype 9, Pullman, Washington (NU). NEW SYNONYMY. Anthidium divisum Cockerel!, 1925. Proc. Calif. Acad. Sci., series 4, 14:350. Holotype 9, Parley Canyon, Salt Lake City, Utah (CAS). NEW SYNONYMY. Anthidium divisum nanulum Cockerel!, 1925. Proc. Calif. Acad. Sci., series 4, 14:350. Holotype 9, Bryson, Monterey Co., California (CAS). NEW SYNONYMY. Anthidium divisum ornatifrons Cockerel!, 1925. Proc. Calif. Acad. Sci., series 4, 14:350. Holotype 9, Meadow Valley, Plumas Co., California (CAS). NEW SYNONYMY. Anthidium brachyurum Cockerel!, 1925. Proc. Calif. Acad. Sci., series 4, 14:357. Holotype 3, Cisco, California (CAS). NEW SYNONYMY. Biology.—Jaycox, 1966, Pan-Pac. Ent, 42 (1): 18-20. Geographic range.—British Columbia south through the northwestern states to Arizona, Nevada, and California. California records.—A LAM EDA CO.: Redwood Park, 1 3, VI-10-47 (C. McNeill, CIS). ALPINE CO.: Red Lake, 1.5 mi. NE, 1 9, VII-25-55 (E. Schlinger, UCD). BUTTE Co.: Yankee Hill, 1 9, V-12-49 (P. Hurd, CIS). CALAVERAS CO.: Big Tree, 1 3, IX-13-37 (F. Blaisdell, CAS). CONTRA COSTA CO.: Antioch, V-24-49, on Lotus (P. Hurd, E. Linsley, J. MacSwain, CIS). Mt Diablo, 3 9, V-23-40 (J. Mac¬Swain, CIS). EL DORADO CO.: Camino, 3 mi. S, 1 9, VI-26-48, on Phacelia (P. Hurd, CIS). Kyburz, 1 3, VII-10-50 (W. Ehrhardt, CIS). Meyers, 1 3, VII-24-55 (E. Schlinger, UCD). Pilot Hill, 1 3 , VI-14-52 (R. Bohart, UCD). Webber Creek, 1 3, 1 9, VI-25-60 (D. Linsdale, CIS). El Dorado, 1 3, 2 9, VI-2-63 (R. Westcott, UCD). FRESNO CO.: Academy, 5 mi. E, 1 9, VI-21-56 (R. Snelling, SS). Pine Flat Reservoir, 1 9, VI-22-56, on Lortrs (R. Snelling, SS). Pinehurst, 2 9, VI-28-60 (R. Snelling, SS). Shaver Lake, 2 9, VII-19-60 (R. Snelling, SS). Watts Valley, 1 9, VI-22-56, or Artemisia (R. Snelling, SS). INYO Co.: Lone Pine, 41 3, 21 9, VI-5-37, on Astragalus Botanderi (C. Michener) UCR). KERN CO.: Bakersfield, 22 mi. NE, 1 3, VI-18-61 (R. Macdonald, UCD). Frazier Mt., 1 9, VII-14-46 (F. Ehrenford, CIS); Mill Potrero, 1 $, VII-6-59 (F. Parker,UCD). LAKE CO.: Kelseyville, 1 3, VI-20-59 (S. Fidel, UCD). Midlake, 1 9, V-30-55 (E. Schlinger, UCD). LASSEN CO.: Bridge Creek Camp, 46 3, 37 9, VII-9-49 (many collectors, CIS, UCD). Hallelujah Junction, 1 9, VII-12-54 (R. Bohart, UCD). Susanville, 1 9, VII-12-34 (E. Van Duzee, CAS). Los ANGELES CO.: Glendora, 1 9, VI-22-56 (R. Bechtel, UCD). Newhall, 1 9, VI-22-39 (R. Bohart, UCD). Tanbark Flat, 8 3, 2 9, VI-20-50, on Lotus (P. Hurd, CIS); 1 9, VI-20-50, on Cryptantha (P. Hurd, CIS); 1 9, VI-20-50, on Eriogonum (W. Bentinck, CIS). MARIPOSA Co.: Big Oak Flat, 1 3, 2 9, VIII-12-52 (R. Bechtel, UCD). Mormon Bar, 6 mi. E, 2 3, VII-4-60 (G. Stage, R. Snelling, SS). MENDOCINO CO.: Potter Valley, 2 3, VI-8-55 (R. Bohart, UCD). MODOC Co.: Alturas, 14 mi. N, 2 3, VI-27-63 (V. Vesterby, UCD). Cedarville, 6 mi. NW, 2 3, 1 9, VII-4-62 (J. Buckett, UCD). Davis Creek, 11 3,2 9, VIII-1S-22 (C. Fox, CAS). Lake City, 1 3, VII-28-22 (C. Fox, CAS). Tule Lake, 1 9, VII-19-54 (P. Hurd, CIS). MONTEREY CO.: Arroyo Seco, 1 3,3 9, VI-6-57, on Clarkia unguiculata (G. Stage, SS). Bryson, 1 9, V-18-20 (E. Van Duzee, CAS). Ft. Ord, 1 3, VII-15-57 (H. Court, UCD). Paraiso Spring, 1 3, V-26-50 (R. Bohart, UCD). San Ardo, 4 mi. S, 1 3, VII-2-60 (P. Paige, UCD). NAPA CO.: Monticello Dam, 20 mi. W, 1 3, V-12-61, on Brodiaea laxa (J. Buckett, UCD). Samuel Springs, 2 3, 1 9, V-8-55 (E. Schlinger, UCD). NEVADA Co.: Boca, 2 3,8 9, VI-28 to VII-5-54 (numerous coll., UCD). Cisco, 1 9, VII-1920 (H. Ricksalee, CAS). Grass Valley, 1 9, VII-5-56 (J. Powell, CIS). Fuller Lake, 1 9, VII-15-61 (L. Stange, UCD). Jackson Lake, 1 9, VII-15-61 (L. Stange, UCD). Hobart Mills, 4 3, 1 9, VI-29-62, on Calyptridium umbellatum (M. Irwin, UCD). Sagehen Creek, 1 3,1 9, VII-4-54 (P.
Hurd, CIS). PLACER Co.: Carnelian Bay, Lake Tahoe, 2 * 8 9, VII-9 to IX-S6 (R. Bohart, UCD). PLUMAS Co.: Blabs! den, 1 3, VII-2-54 (R. Bohart, UCD). Keddie, 1 3, vtL. 4-51 (E. Schlinger, UCD). Lake Almanor, 4 3, VII-13^ (E. Van Duzee, CAS). Portola, 1 3, VII-2-54 (R. Bohart UCD). Quincy, 4 mi. W, 7 3,2 9, VI-22-49, on PAacefo (P. Hurd, CIS). Meadow Valley, 1 3, VI-30-34 (E. Van Dyke, CAS). Mohawk, 1 9, VII-11-57 (D. Rentz, SS). RIVERSIDE CO.: Anza, 2 mi. E, 1 3, VII-7-56, on Eriogonttrit fasciculatum (P. Hurd, CIS). Banning, 2 3, V-30-28 (£ Van Dyke, CAS). Hemet, 8 mi. W, 1 3, VI-29-46 (j MacSwain, CIS). Idyllwild, 3 3,1 9, VII-22-33, on Lotul argophyllus, and Lotus Purshianus (P. Timberlake, UCR); j 3, VII—22-33, on Horkelia Bolanderi ssp. Clevelandii (pt Timberlake, UCR); 2 3, VI-9-40, on Lorus Davidsonii (p, Timberlake, UCR). Keen Camp, San Jacinto Mts., 2 3,19 VI-13-39 (E. Linsley, CIS); 8 mi. W, 1 3, V-16-39, on' Cirsium (E. Linsley, CIS). Perris, 1.5 mi. W, 6 3, 2 9, VI—21—38, on Lotus scoparius, Lotus Purshianus (P. Timber-lake, UCR). Riverside, 14 3, 6 9, V-17-29, on Lotus scoparius, Phacelia ramosissima (P. Timberlake, UCR); 1 $t 1 9, V-21-30, on Eriastrum pluriRorum (P. Timberlake, UCR). The Gaviian, 1 3, VI-18-37, on Oenothera (E. Linsley, CIS); 5 3,1 9, VI-24-38, on Lotus scoparius (P. Timberlake, UCR). SACRAMENTO CO.: Folsom, 1 9, V-19-55, on Cryptantha (P. Hurd, CIS). Fair Oaks, 1 3, VI-24-44 (C. Hamsher, UCD). SAN BENITO CO.: Idria, 1 3, 1 9, VI-29-54 (C. MacNeill, CIS). Pinnacles, 1 9, VII-2-56, on Hemizonia Lobbii (P. Hurd, CIS). SAN BERNARDINO CO.: Big Bear Valley, 3 3,1 9, VI-18-34, on Lotus argophyllus (P. Timberlake, UCR). Cajon Wash, 2 3,1 9, VI-16-38, on Lotus scoparius (P. Timberlake, UCR). Devore, 1 9, VI-23-35, on Antirrhinum Coulterianum (P. Timberlake, UCR). Green Valley, 1 9, VI—9—38, on Lotus scoparius (P. Timber-lake, UCR). Lake Arrowhead, 1 3, 1 9, VII-9-56, on Horkelia Bolanderi (E. Linsley, CIS); 1 3, VI-7-35, on Lotus Davidsonii (P. Timberlake, UCR). Lytle Creek, 1 9, VII-1-41 (C. Dammers, SS). Phelan, 2 mi. W, 1 3, VI-7-58 (J. Hall, UCD). San Bernardino Mts., 2 3, V-15-37, on Ceanothus (E. Linsley, CIS). SAN DlECO CO.: Alpine, 1 3, VI-1-36, on Lotus scoparius (P. Timberlake, UCR). Barrett Springs, 1 9, IV-20-50 (E. Linsleey, J. MacSwain, CIS). Boulevard, 2 mi. SW, 2 3, 3 9, VI-10-56, on Lotus (R. Snelling, SS). Mt. Laguna, 13 3,8 9, VI-21-63, on Lotus strigosus (P. Hurd, CIS). Poway, 1 3, 1 9, V-16-86 (F. Blaisdell, CAS). Warner Springs, 2 mi. N, 1 3, VII-8-56, on Croton californicus (R. Bechtel, UCD). SAN LUIS OBISPO CO.: Atascadero, 8 mi. W, 2 9, VII-3-56, on Clarkia speciosa (E. Linsley, CIS). Creston, 5 mi. S, 2 3, VI-20-59 (P. Marsh, UCD). La Panza, 12 mi. NE Pozo, 1 3,1 9, IV-29-52 (R. Thorp, CIS). Santa Margarita, 5 mi. NE, 2 3, V-4-62, on Lupinus nanus (P. Hurd, CIS); 1 3,1 9, V-2-62, on Chaenactus glabriuscula (P. Hurd, CIS). Simmler, 10 mi. W, 1 9, IV-29-62 (P. Hurd, CIS). SANTA BARBARA CO.: Bluff Camp, San Rafael Mts., 2 3, 1 9, VI-29-59 (F. Parker, UCD). Cachumaco Park, 1 3, VII-5-56 (P. Hurd, CIS). Figueroa Mt, 1 3, VII-3-59 (W. Steffan, UCD). Santa Ynez Mts., 3 9, VI-24-59 (P. Marsh, F. Parker, UCD). SANTA CLARA Co.: Alum Rock Park, 1 9, V-27-50 (S. Bailey, R. Bohart, UCD). Mt. Hamilton, 1 9, V-25-50, on Eriodictyon (E. Linsley, CIS). SANTA CRUZ Co.: Mission Springs, 1 9, VI-30-56, on Clarka amoena (R. Snelling, SS). Mt Hermon, 2 3, VII-7-22 (C. Fox, CAS); Soquel, 9 mi. E, VI-4-56 (S. Fidel, UCD). SHASTA Co.: Cassel, 1 9, VII-5-55, on Aster (J. MacSwain, CIS). Cayton, 1 9, VII-13-18 (E. Van Duzee, UCR). Hat Creek, 5 $, 2 9, VI-26-55 (W. Middlekauff, CIS). Moose Camp, 1 $,
1 9, VII-14-55 (E. Schlinger, UCD). Redding, 1 $, VII-7-18 (E. Van Duzee, UCR). SIERRA CO.: Independence Lake, 2 $, 1 9, VII-27-56 (R. Bohart, UCD). Sierraville, 5 o\ VII-6-62 (M. Irwin, UCD); IS mi. SE, 1 $, VII-4-60 (F. Parker, UCD). Weber Lake, 1 $, VII-5-51 (E. Schlinger, UCD). SISKIYOU Co.: Macdoel, 1 9, VII-27-63, on Grindelia (J. Schuh, JS). Mt Hebron, 9 mi. S, 1 $, IX-3-63, on Cirsium vulgare (J. Schuh, JS). Walker, 1 9, VI-3-20 (C. Fox, CAS). SOLANO Co.: Rio Vista, 35$, 89, V-24-49, on Lotus (P. Hurd, E. Linsley, J. MacSwain, CIS). SONOMA CO.: Sonoma, 1 $, VII-1-10 (J. Kusche, CAS). STANISLAUS Co.: La Grange, 3 $, 1 9, V-28-61 (R. Snelling, LACM). TRINITY Co.: Carrville, 1 $, VI-27-31 (E. Van Dyke, CAS). Coffee Creek, 9 3,3 9, VI-8-25, on Lotus scoparius (P. Timberlake, UCR); 10 mi. W, 2 3,4 9, VII-14-55 (R. Bohart, E. Lindquist, CIS, UCD). Trinity Center, 1 $, VII-18-53, on Penstemon (A. McClay, UCD). TULARE Co.: Badger, 1 $, VI-26-29, on Lotus nevadensis (P. Timber-lake, UCR). Mineral King, 1 9, VIII-4-39 (CIS). Sequoia National Park, 1 9, VI-9-52 (R. Bohart, UCD). TUOLUMNE CO.: Dardanelles, 1 9, VI-26-51 (J. MacSwain, CIS). Dodge Ridge, 2 S, VIII-7-60 (A. Menke, UCD). Mather, 1 9, VII-12-29 (E. Zimmerman, CAS). Pinecrest, 5 mi. W, 1 9, VI-30-57, on Lotus (R. Snelling, SS). Strawberry, 1 9, VII-15-53 (J. Rozen, CIS). VENTURA CO.: Santa Susana Pass, 1 $, VI-14-61 (M. Irwin, UCD). YOLO Co.: Rumsey, 1 9, V-30-56 (R. Bohart, UCD). The males of utahense can be distinguished by the shape of tergum VII (fig. 55) which has the lateral lobe truncate posteriorly and about twice as wide as the distance between it and the median spine. The shape of tergum VII is similar for jocosum (fig. 58), but the latter species differs by having weakly pro¬duced lateral lobes of sternum VI (figs. 56, 59) and a poorly differentiated setal brush. Females of uta¬hense have a distinctive tergum VI which has the posterior marginal band nearly truncate (fig. 81), and in contrast to mormonum (fig. 80) the dorso¬lateral border is close to the cross-under point of the band. The absence of fine white pile on the basitarsus distinguishes utahense from collectum females. Typ¬ically, the clypeus and mandible of the females are nearly all yellow, with the clypeus frequently having a dark median band. This small- to moderate-sized species is one of the most commonly collected (696 $ , 451 9 ) and most widespread Anthidium in California, but it is notably absent from the Mojave and Colorado deserts and Great Valley. There is slight geographic variation in color pattern, although specimens from southern Cali¬fornia tend to have slightly fuller yellow markings. According to Jaycox (1966) female utahense nest in the ground by utilizing cavities made by other insects and animals, and will accept artificial nest cavities (such as in straws inserted in wooden blocks) when placed in sandy areas. Pollen was gathered from Phacelia and Melilotus plants. Presumably the same female gathered a load of pollen in 10 to 27 minutes. Completed nests contained 1 to 4 cells (averaging 2.1 cells per nest). The cells were lined with down gathered from Cirsium and Artemisia plants, and the top of the cell series was packed with gravel. Indi¬viduals of Dioxys productus productus (Cresson) were observed as parasitoids or depredators of larval food. Plant visitations taken from California records include species in 25 genera and numerous families. Most frequently visited were species of the legume Lotus.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Amaryllidaceae  Agapanthus @ UCRC_ENT (1)
Asteraceae  Chaenactis glabriuscula @ UCRC_ENT (4)

Chrysothamnus @ AMNH_BEE (2)

Cirsium vulgare @ AMNH_BEE (1)

Eriophyllum @ AMNH_BEE (1)

Grindelia @ AMNH_BEE (2)
Boraginaceae  Cryptantha intermedia @ UCRC_ENT (2)

Cryptantha micrantha @ UCRC_ENT (1)

Cryptantha @ UCRC_ENT (1)

Eriodictyon crassifolium @ UCRC_ENT (1)

Eriodictyon parryi @ UCRC_ENT (1)

Phacelia distans @ UCRC_ENT (1)

Phacelia ramosissima @ UCRC_ENT (4)

Phacelia @ AMNH_BEE (4)
Fabaceae  Acmispon americanus @ UCRC_ENT (16)

Acmispon argophyllus @ UCRC_ENT (10)

Acmispon glaber @ UCRC_ENT (48)

Acmispon nevadensis @ UCRC_ENT (4)

Hosackia oblongifolia @ UCRC_ENT (1)

Lotus americanus @ BBSL__BBSLID (3)

Lotus argophyllus @ UCRC_ENT (10)

Lotus nevadensis @ UCRC_ENT (1)

Lotus @ UCRC_ENT (6)

Lupinus bicolor @ UCRC_ENT (3)

Trifolium hybridum @ BBSL__BBSLID (2)
Plantaginaceae  Antirrhinum coulterianum @ UCRC_ENT (1)
Polemoniaceae  Eriastrum virgatum @ UCRC_ENT (6)
Polygonaceae  Chorizanthe staticoides @ UCRC_ENT (17)
Rosaceae  Potentilla glandulosa @ UCRC_ENT (1)

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Updated: 2018-11-16 07:46:32 gmt
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