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Anthidium formosum Cresson, 1878
Anthidium conspicuum Cresson, 1879; Anthidium illustre var consonum Cresson, 1879; Dianthidium balli Titus, 1902; Callanthidium formosum (Cresson, 1878); Callanthidium formosum pratense Cockerell, 1925; Anthidium (Callanthidium) formosum Cresson, 1878

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Anthidium
Subgenus: Anthidium

Anthidium formosum, male, S6, apex lobe, VG
© Kimberly Huntzinger, 2007 · 2
Anthidium formosum, male, S6, apex lobe, VG

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Anthidium formosum, male, S7 profile, VG
© Kimberly Huntzinger, 2007 · 2
Anthidium formosum, male, S7 profile, VG
Anthidium formosum, male, S8 apex profile, VG
© Kimberly Huntzinger, 2007 · 2
Anthidium formosum, male, S8 apex profile, VG

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

Anthidium formosum, male, S8, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium formosum, male, S8, VG
Anthidium formosum, male, T7, VG
© Kimberly Huntzinger, 2007 · 1
Anthidium formosum, male, T7, VG

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

Ant hid turn formosum Cresson, 1878. Trans. Amer. Ent. Soc, 7:112. Holotype $, Colorado (ANSP). Anthidium conspicuum Cresson, 1879. Trans. Amer. Ent. Soc, 7:207. Holotype 9, Nevada (ANSP). Anthidium illustre var. consonum Cresson, 1879. Trans. Amer. Ent Soc., 7:207. Holotype 9, Nevada (ANSP). Dianthidium ball! Titus, 1902. Ent. News., 13:170. Holotype 9, Ridgeway, Colorado. Callanthidium formosum pratense Cockerell, 1925. Proc. Calif. Acad. Sci., Series 4, 14:366. Holotype $, Meadow Valley, Plumas Co., California (CAS). Geographic range.—Arizona, California, Colorado, Montana, Nevada, Oregon, Utah. Map 25. California distribution of Callanthidium formosum (Cresson) California records.—EL DORADO Co.: Fallen Leaf Lake, 1 9, VIII-19-20 (I. McCracken, CIS). Los ANGELES CO.: Big Pine Creek, 1 $, 1 9, VII-14-27, on Castilleja (P. Timberlake, UCR). RIVERSIDE CO.: Herkey Creek, 1 $, VI-24-34 (I. McCracken, CAS). SAN BERNARDINO Co.: Big Bear Valley, 8 $,2 9, VIII-6-33, on Monardetla linoides (P. Timberlake, UCR); 5 6\ 9 9, VII-7-34, on Lotus argophyllus (P. Timberlake, UCR). INYO CO.: Westgard Pass, 3 mi. N, 1 6\ VI-26-53 (J. MacSwain, CIS). LASSEN Co.: Bridge Creek Camp, 4 $, 1 9, VII-14-54 (R. Bohart, R. Goodwin, UCD, CIS). MODOC Co.: Cedarville, 1 mi. fy 1 9, VII-9-46, on Medicago sativa (P. Hurd, R. Smith, CIS). Davis Creek, 8 6\ 1 9, VII-11-22 (C. Fox, CAS). Goose Lake, 2 6\ VII-24-22 (C. Fox, CAS). Newell, 1 &, VIU 13-63, on Astragalus (J. Schuh, JS). Tule Lake, 1 $, VI-25-63, on Astragalus (J. Schuh, JS). MONO Co.: Crooked Creek, White Mts., 1 6\ VII-19-61 (G. Stage, CIS). McKay Creek, Sonora Pass, 1 9, VIII-18-60 (C. Toschi, CIS). NEVADA Co.: Truckee, 1 $ , VII-7-27 (E. Van Duzee, CAS). SAN BERNARDINO CO.: Dollar Lake Trail, 2 3,3 9, VII-H-. 56 (R. Bohart, UCD). SHASTA CO.: Hat Creek, 1 6", VI-21-55 R. Bechtel, UCD). Lake Eiler, 1 $, VII-22-47 (C. Hanson, CIS). Old Station, 1 $, VI-22-55 (J. Jessen, UCD). SIERRA CO.: Gold Lake, 1 9, VIII-13-63 (R. Wescott, LACM). Sierraville, 3 $, 1 9, VIII-26-48, on Phacelia (J. MacSwain, CIS). SISKIYOU Co.: Valentine Caves, Lava Beds National Mon., 2 9, VI-30-63 (V. Vesterby, UCD). TUOLUMNE Co.: Blue Canyon, 1 9, VIII-30-60 (G. Colliver, CIS). Sonora Pass, 3 $, VII-10-57 (D. Flaherty, UCR). C. formosum is less commonly collected (61 $t 37 9 ) than illustre and its distribution is limited in California to the Cascade, Sierra Nevada, and southern California mountains. The last tergum (figs. 101, 102) furnishes diagnostic characters to distin¬guish both sexes of formosum. Also, male sternum VI (fig. 105) differs considerably in formosum by lacking the median spinelike projection of illustre (fig. 109). The form of sternum VIII (fig. 103, 104) is of considerable interest because of the expanded crestlike plate at a right angle to the flat plane of the sternite. Nothing is known of the nest construction, and sparse records of plant associations show collections from four families with slightly over one-half being from the Leguminosae.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Fabaceae  Lotus argophyllus @ UCRC_ENT (13)

Lupinus confertus @ UCRC_ENT (1)

Robinia neomexicana @ UCRC_ENT (1)
Lamiaceae  Monardella linoides @ UCRC_ENT (8)
Orobanchaceae  Castilleja plagiotoma @ UCRC_ENT (1)

Cordylanthus nevinii @ UCRC_ENT (7)
Polygonaceae  Eriogonum umbellatum @ UCRC_ENT (1)

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Updated: 2018-11-22 11:13:54 gmt
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