Wool carder bees of the genus Anthid…

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Wool carder bees of the genus Anthidium in the Western Hemisphere


Bees are among the most important pollinators of flowering plants in most ecosystems. Recent concerns about population declines worldwide have highlighted the urgent societal need for species-level systematic work that facilitates assessments of the status of pollinators and pollination services. The data is based on a comprehensive, broadly comparative study on the diversity, biology, biogeography, and evolution of Anthidium Fabricius, one of the most diverse megachilid genera containing more than 160 species worldwide. All 92 recognized species, including the two adventive species A. oblongatum and A. manicatum, are presented in this data set. A neotype for A. emarginatum (Say) and lectotypes for 16 names are designated; five names are relegated to synonymy, three names are revalidated, previously unknown males of three species are described, and 21 new species are proposed. Information on the distribution, seasonality and host plants are given except for instances association with threatened or endangered flora. The relationships of the Anthidium subgenera and all Western Hemisphere species are explored using a cladistic analysis based on adult external morphological characters. To facilitate transferring of knowledge to non-specialists, some digital outputs and web-based products that include a geo-referenced specimen database consisting of more than 21,000 records, species pages, and interactive digital keys, were also developed during this study.

Temporal coverages

Date range: 01-May-1886 - 01-Feb-2012

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Victor H. Gonzalez
Research Entomologist
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 5310 Old Main Hill 84322 Logan Utah United States 435-797-2526
Metadata author
Harold Ikerd
Entomology Technician
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 84322 Logn Utah United States 435-797-2526
Administrative contact
Terry Griswold
Research Entomologist
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 5310 Old Main Hill 84322 Logan Utah United States 435-797-2526


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Anthidium in the Western Hemisphere


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Other Contacts

Terry Griswold
Research Entomologist
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 5310 Old Main Hill 84322 Logan Utah United States 435-797-2526
Victor H. Gonzalez
Research Entomologist
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 5310 Old Main Hill 84322 Logan Utah United States 435-797-2526
Harold Ikerd
Entomology Technician
USDA-ARS POLLINATING INSECTS RESEARCH UNIT 5310 Old Main Hill 84322 Logan Utah United States 435-797-2526
Terry Griswold

Taxonomic Coverage

The coverage of this dataset includes 92 species of the bee genus Anthidium in the Western Hemisphere, two of which are adventive. The highest number of data records are for two widespread western North American species, A. utahense Swenk (2403 records) and A. mormonum Cresson (1589 records). The species with the least number of records are A. alsinai Urban A. isabelae Urban, A. larocai Urban, A. luizae Urban, A. multispinosum Gonzalez & Griswold, A. neffi Gonzalez & Griswold, and A. rozeni Urban, all represented by a single data record.

Anthidium (wool-carder bees)

Funding Grants

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National Science Foundation grants DEB-0742998 and DBI-0956388

Project Personnel

Terry Griswold


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