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Dianthidium pudicum (Cresson, 1879)
Anthidium pudicum Cresson, 1879; Anthidium pudens Cresson, 1879; Dianthidium pudicum decorum Timberlake, 1943; Dianthidium pudicum inyoense Timberlake, 1943; Anthidium consimile Ashmead 1896; Dianthidium provancheri Titus, 1906; Dianthidium plenum australe Timberlake, 1943; Dianthidium macswaini Timberlake, 1943; Dianthidium pudicum peninsulare Timberlake, 1949; Dianthidium (Dianthidium) pudicum consimile (Ashmead, 1896), valid subspecies

Life   Insecta   Hymenoptera   Apoidea   Megachilidae   Dianthidium
Subgenus: Dianthidium

Dianthidium pudicum, female, face
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, female, face

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Dianthidium pudicum, female, side
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, female, side
Dianthidium pudicum, female, top
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, female, top

Dianthidium pudicum, female, wing
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, female, wing
Dianthidium pudicum, male, face
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, male, face

Dianthidium pudicum, male, side
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, male, side
Dianthidium pudicum, male, top
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, male, top

Dianthidium pudicum, male, wing
Smithsonian Institution, Entomology Department · 9
Dianthidium pudicum, male, wing
Dianthidium pudicum FEM mm x f
© Copyright Laurence Packer 2014 · 7
Dianthidium pudicum FEM mm x f

Dianthidium pudicum MALE mm
© Copyright Laurence Packer 2014 · 7
Dianthidium pudicum MALE mm
Dianthidium pudicum, male, thorax surfaceb
© Kimberly Huntzinger, 2007 · 2
Dianthidium pudicum, male, thorax surfaceb

Dianthidium pudicum
Adalbert Goertz · 1
Dianthidium pudicum
Dianthidium pudicum, male, frons b
© Kimberly Huntzinger, 2007 · 1
Dianthidium pudicum, male, frons b

Dianthidium pudicum, male, T7
© Kimberly Huntzinger, 2007 · 1
Dianthidium pudicum, male, T7
Dianthidium pudicum, male, thoraxsurface
© Kimberly Huntzinger, 2007 · 1
Dianthidium pudicum, male, thoraxsurface
Identification
Extracted from THE POLLEN-COLLECTING BEES OF THE ANTHIDIINI OF CALIFORNIA (Hymenoptera: Megachilidae) by Grigarick A., A. (1968).


Geographic range.—Alberta, British Columbia, Baja Cali¬fornia, Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming. The male of pudicum has the median lobe of ter-gum VII (fig. 141) curved downward and well sepa¬rated from the lateral lobes. This places it in a group with dubium, marshi, and plenum. It is readily dis¬tinguished from these by the shape of sternum VI (fig. 142) which is prominently incised at the apex. The mandible of the female of pudicum (fig. 176) has a straight cutting edge at the base similar to plenum (fig. 175), and they are separated with dif¬ficulty by the sculpture on the frons and punctation on the midline of tergum VI (figs. 191, 193), which is weakly carinate on plenum. D. p. pudicum is black with a white or cream-colored pattern. An occasional male has been ob¬served with reddish markings on the first two meta-somal terga. The species has previously been sepa¬rated into subspecies based on color, extent of macu-lation, and degree of pubescence. The length and amount of pubescence was found to be quite variable. The extent of the color pattern tended to be reduced in the Klamath and Cascade ranges and at higher altitudes but became more extensive on the eastern slope of the Sierra Nevada Range. D. p. pudicum is designated in this paper as including members of the species with a white to cream-colored marking of the thorax and abdomen. Specimens of this subspecies have been collected at Inyo and Kern Counties that are intermediate in color with the yellow and black subspecies pudicum consimile. D. p. pudicum is most frequently collected above 5,000 feet in California. It is found in the Klamath and Cascade ranges, northeastern California, the Sierra Nevada as far south as Walker Pass, Kern County, and the White Mountains of Inyo County. It is represented in the collections examined by 28 males and 44 females. The nest construction of p. pudicum was first reported at Boulder, Colorado by Hicks (1927). Nests of resin and pebbles with two to eight cells were attached to the sides of rocks or filled in depres¬sions of the rocks. Parasites reared from these cells included Odynerus (Stenodynerus) sp., Monodonto-merus montivagus Ashmead, and Eusapyga proxima (Cresson). Eusapyga rubripes (Cresson) and Sapyga sp. were also reared from cells of p. pudicum in Colo¬rado by Hicks (1934). First instar meloid larvae of the genus Zonitis were found attached to the pubes¬cence of a male of p. pudicum collected at Eastgate, Churchill Co., Nevada, VIII-24-62, by R. Bohart. A gravel and resin nest of four cells of this species was found by H. B. Leach in Inyo County on the under¬side of a rock and would not have been visible if the rock had not been turned over. The fact that the nesting site is not limited to rocks was shown by the collection of a nest of three resin and gravel cells in the crotch of a small fruit tree by F. D. Parker at Reno, Nevada. Three males of p. pudicum emerged from the cells. Very limited host plant records show this sub-species to be collected on members of the Compositae, Leguminosae, and Polemoniaceae.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apiaceae  Cymopterus beckii @ BBSL (1)
Apocynaceae  Asclepias tuberosa @ UCRC_ENT (1)
Asteraceae  Baileya sp @ BBSL (1)

Bebbia sp @ BBSL (1)

Chrysothamnus sp @ BBSL (1)

Cirsium vulgare @ AMNH_BEE (1)

Corethrogyne @ UCRC_ENT (1)

Encelia actonii @ BBSL__KWC (1)

Encelia sp @ BBSL__KWC (1)

Ericameria nauseosa @ BBSL (3)

Eriodictyon @ UCRC_ENT (1)

Gaillardia pinnatifida @ UCRC_ENT (1)

Grindelia sp @ BBSL (4)

Grindelia squarrosa @ BBSL (3)

Grindelia subalpina @ BBSL (3)

Grindelia @ UCRC_ENT (1)

Gutierrezia microcephala @ UCRC_ENT (1)

Gutierrezia sarothrae @ UCRC_ENT (5)

Haplopappus nuttallii @ BBSL (1)

Helianthus sp @ BBSL (5)

Heterotheca @ UCRC_ENT (1)

Machaeranthera bigelovii @ I_ADG (1)

Palafoxia linearis @ UCRC_ENT (1)

Solidago @ UCRC_ENT (1)

Stephanomeria cichoriacea @ UCRC_ENT (2)

Stephanomeria exigua @ UCRC_ENT (2)

Stephanomeria sp @ BBSL (1)

Tetradymia canescens @ BBSL (1)
Boraginaceae  Cryptantha intermedia @ UCRC_ENT (1)

Eriodictyon crassifolium @ UCRC_ENT (2)

Phacelia distans @ UCRC_ENT (1)

Phacelia ramosissima @ UCRC_ENT (3)
Brassicaceae  Stanleya pinnata @ BBSL (1)
Cactaceae  Opuntia sp @ BBSL (1)
Capparaceae  Cleome lutea @ BBSL (3)

Cleome sp @ BBSL (1)
Caprifoliaceae  Lonicera hispidula @ BBSL__PUB (1)
Fabaceae  Acmispon americanus @ UCRC_ENT (1)

Acmispon glaber @ UCRC_ENT (1)

Amorpha canescens @ AMNH_BEE (4)

Astragalus lentiginosus @ BBSL (2)

Dalea parryi @ BBSL__KWC (1)

Glycyrrhiza lepidota @ UCRC_ENT (1)

Hosackia wrightii @ UCRC_ENT (1)

Lotus sp @ BBSL__KWC (1); BBSL (1)

Lotus wrightii @ UCRC_ENT (1)

Medicago sativa @ BBSL (4)

Melilotus alba @ BBSL__PUB (1); BBSL (1)

Melilotus indica @ BBSL__PUB (1)

Melilotus sp @ BBSL (3)

Melilotus @ AMNH_BEE (1)

Psoralea lanceolata @ BBSL (1)

Psoralea sp @ BBSL (1)
Fumariaceae  Ehrendorferia chrysantha @ UCRC_ENT (1)
Hydrophyllaceae  Eriodictyon angustifolium @ BBSL (1)

Eriodictyon sp @ BBSL__PUB (1)

Phacelia congesta @ BBSL (1)

Phacelia sp @ BBSL (3); BBSL__KWC (1)
Krameriaceae  Krameria grayi @ UCRC_ENT (1)
Lamiaceae  Marrubium vulgare @ BBSL (4)

Marrubium @ AMNH_BEE (1)

Salvia sp @ BBSL (3)

Stachys albens @ UCRC_ENT (5)

Trichostema lanceolatum @ UCRC_ENT (3)
Orobanchaceae  Orobanche ludoviciana @ BBSL (4)
Polemoniaceae  Eriastrum sp @ BBSL__KWC (1)

Eriastrum virgatum @ UCRC_ENT (1)
Polycitoridae  Salix sp @ BBSL (1)
Polygonaceae  Eriogonum fasciculatum @ UCRC_ENT (1)

Eriogonum inflatum @ BBSL__KWC (2)
Scrophulariaceae  Castilleja linariifolia @ BBSL (1)
Zygophyllaceae  Larrea tridentata @ UCRC_ENT (7)
_  Withheld @ BBSL__ZION (1); BBSL__YOSE (63); BBSL (481); BBSL__PINN (8)

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Updated: 2018-08-19 14:13:14 gmt
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