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Subfamily Apinae - Honey, Bumble, Longhorn, Orchid, and Digger Bees

 
 
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A scientific note on the first record of nesting sites of Peponapis crassidentata (Hymenoptera: Apidae)
By Oliverio Delgado-Carrillo, Martha Lopezaraika-Mikel, Lorena Ashworth, Ramiro Aquilar, Jorge A. Lobo, Mauricio Quesada
Apidologie 48:644-647., 2017
PDF

Naturalization of the oil collecting bee Centris nitida (Hymenoptera, Apidae, Centrini)...
By Pemberton R.W., Liu H.
Florida Entomologist 9: 101-109, 2008
Full title: Naturalization of the oil collecting bee Centris nitida (Hymenoptera, Apidae, Centrini), a potential pollinator of selected native, ornamental, and invasive plants in Florida
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A contribution to the systematics of North American species of Synhalonia (Hymenoptera, Apoidea)
By Timberlake P.H.
UC Pub. Entomol. 57: 1‒76, 1969

The North American bees of the genus Ptilothrix Cresson, 1878 (Hymenoptera, Apidae, Emphorini), with the description of two...
By Florez-Gomez N., Danforth B.
J. Hymenopt. Res. 95: 275‒293, 2023
Full title: The North American bees of the genus Ptilothrix Cresson, 1878 (Hymenoptera, Apidae, Emphorini), with the description of two new species
Full text

Revision of the Bees of the Genus Tetraloniella in the New World (Hymenoptera: Apidae).
By Wallace E. LaBerge
Illinois Natural History Survey Bulletin 36: 63-162., 2001

Bumble Bees and Cuckoo Bumble Bees of California (Hymenoptera: Apidae)
By Thorp R.W., Horning D.S., Jr., Dunning L.L.
Bull. Calif. Ins. Survey 23: viii+79 pp., 1983

Bumble Bees of North America: An Identification Guide
By Williams et al.
Princeton University Press, Princeton, NJ. 208 pp., 2014
Paul H. Williams, Robbin W. Thorp, Leif L. Richardson & Sheila R. Colla. 2014. Bumble Bees of North America: An Identification Guide. Princeton University Press, Princeton, NJ. 208 pp.

Publisher's Page

More than ever before, there is widespread interest in studying bumble bees and the critical role they play in our ecosystems. Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur and professional naturalists to identify all 46 bumble bee species found north of Mexico and to understand their ecology and changing geographic distributions.

Patterns of widespread decline in North American bumble bees.
By Cameron et al.
Proc. Natl. Acad. Sci. 108: 662-667. , 2011
Full Text

Cameron et al. (2011) quantified dramatic range-wide population declines in B. occidentalis, B. pensylvanicus, B. affinis, and B. terricola that have occurred over the last few decades.

Abstract (part):

Here, we report results of a 3-y interdisciplinary study of changing distributions, population genetic structure, and levels of pathogen infection in bumble bee populations across the United States. We compare current and historical distributions of eight species, compiling a database of >73,000 museum records for comparison with data from intensive nationwide surveys of >16,000 specimens. We show that the relative abundances of four species have declined by up to 96% and that their surveyed geographic ranges have contracted by 23–87%, some within the last 20 y.

 
 
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