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American Museum of Natural History


  • Wesleyan University, BA, Biology, 1994
  • Cornell University, PhD, Entomology, 2004
  • American Museum of Natural History, Post-doctoral Fellow, Department of Invertebrate Zoology, 2003-2005
  • 1994-1996 Junior Hymenoptera Specialist, Essig Museum of Entomology, University of California Berkeley
  • 2005- Research Scientists and Bee Database Senior Project Manager, Department of Invertebrate Zoology, American Museum of Natural History
  • 2010-NSF DBI: Collaborative Research: Collaborative Databasing of North American Bee Collections Within a Global Informatics Network
    (PI John S. Ascher, CoPIs Douglas Yanega and Jerome G. Rozen, Jr.)
  • 2009-2010 Support from the Food and Agriculture Organization (FAO) for assembling data on bee pollinators.

Bartomeus, I., J. S. Ascher, D. L. Wagner, B. N. Danforth, S. R. Colla, S. Kornbluth, and R. Winfree. Climate-associated phenological advances in bee pollinators and bee-pollinated plants. Proceedings of the Natural Academy of Sciences (USA). In press.

Colla, S. R., J. S. Ascher, M. Arduser, J. Cane, M. Deyrup, S. Droege, J. Gibbs, T. Griswold, H. G. Hall, J. Neff, R. P. Jean, M. G. Rightmyer, C. Sheffield, M. Veit, A. Wolf. Documenting persistence of most eastern North American bee species (Hymenoptera: Apoidea: Anthophila) to 1990-2009. In press.

Rightmyer, M. G., M. A. Deyrup, J. S. Ascher, and T. L. Griswold. 2011. Osmia species (Hymenoptera, Megachilidae) from the southeastern United States with modified facial hairs: taxonomy, host plants, and conservation status. ZooKeys. In press.

Hall, H. G., and J. S. Ascher. 2011. Surveys of wild bees (Hymenoptera: Apoidea: Anthophila) in organic farms of Alachua County in north-central Florida. Florida Entomologist 94: 539-552.

Kuhlmann, M., and J. S. Ascher. 2011. Two new synonymies of eastern North American Colletes Latr. species described from Japan (Hymenoptera: Colletidae). Entomological News. 121(4): 325-328.

Scott, V. L., J. S. Ascher, T. L. Griswold, and C. R. Nufio. 2011. Bees of Colorado (Hymenoptera: Apoidea: Anthophila). Natural History Inventory of Colorado 23. vi + 100 pp.

Tonietto, R. [K.], J. B. Fant, J. [S.] Ascher, K. E. Ellis, D. J. Larkin. 2011. A comparison of bee communities of Chicago green roofs, parks and prairies. Landscape and Urban Planning 103(1): 102-108.

Watson, J. C., A. T. Wolf, and J. S. Ascher. 2011. Forested landscapes promote richness and abundance of native bees (Hymenoptera: Apoidea: Anthophila) in Wisconsin apple orchards. Environ. Entomol. 40(3):621-632.

Schuh, R. T., Hewson-Smith, S., and J. S. Ascher. 2010. Specimen databases: a case study in entomology using web-based software. American Entomologist 56(4): 206-216.

Hall, H. G., and J. S. Ascher. 2010. Surveys of bees (Hymenoptera: Apoidea: Anthophila) in natural areas of Alachua County in north-central Florida. Florida Entomologist 93(4): 609-629.

Vallely, A. C., R. J. Gallardo, and J. S. Ascher. 2010. Notes on the birds of the Río Plátano Biosphere Reserve, including four new species for Honduras. Bulletin of the British Ornithologists Club. In press.

Rozen, J. G., Jr., H. H. Özbek, J. S. Ascher, C. Sedivy, C. Praz, A. Monfared, and A. Müller. 2010. Nests, petal usage, floral preferences, and immatures of Osmia (Ozbekosmia) avosetta (Megachilidae: Megachilinae: Osmiini), including biological comparisons with other osmiine bees. In press.

Gardiner, M. A., J. K. Tuell, R. Isaacs, J. Gibbs, J. S. Ascher, and D. A. Landis. 2010. Implications of Three Biofuel Crops for Beneficial Arthropods in Agricultural Landscapes. BioEnergy Research (published early online 23 Jan 2010).

Packer L., C. S. Sheffield, J. Gibbs, N. de Silva, L. R. Best, J. [S.] Ascher, R. Ayala, D. Martins, S. P. M. Roberts, O. Tadauchi, M. Kuhlmann, P. H. Williams, C. Eardley, S, Droege, and T. V. Levchenko. 2009. The campaign to barcode the bees of the world: progress, problems, prognosis. In: Yurrita, CL (Ed), Memorias: VI Congresso Mesoamericano Sobre Abejas Nativas. Universidad de San Carlos de Guatemala, Centro de Estudios Conservacionistas, pp. 178-180.

Wolf, A. T., and J. S. Ascher. 2009. Bees of Wisconsin (Hymenoptera: Apoidea: Anthophila). The Great Lakes Entomologist 41: 129-168.

Tonietto R. K., and J. S. Ascher. 2009. Occurrence of the Old World bee species Hylaeus hyalinatus, Anthidium manicatum, A. oblongatum, and Megachile sculpturalis, and the native species Coelioxys banksi, Lasioglossum michiganense, and L. zophops in Illinois (Hymenoptera: Apoidea: Colletidae, Halictidae, Megachilidae,). The Great Lakes Entomologist (in press).

Gibbs, J., J. S. Ascher, and L. Packer. 2009. Proposal for precedence of Dialictus Robertson, 1902 and Evylaeus Robertson, 1902 over Hemihalictus Cockerell, 1897, Sudila Cameron, 1898 and Sphecodogastra, Ashmead, 1899 (Insecta, Hymenoptera). Bulletin of Zoological Nomenclature 66(2): 147-158.

Rozen, J. G., Jr., H. Özbek, J. S. Ascher, and M. G. Rightmyer. 2009. Biology of the bee Hoplitis (Hoplitis) monstrabilis Tkalcü and descriptions of its egg and larva (Megachilidae: Megachilinae: Osmiini). American Museum Novitates 3645: 12 pp.

Tuell, J. K. , J. S. Ascher, and R. Isaacs. 2009. Wild Bees (Hymenoptera: Apoidea: Anthophila) of the Michigan highbush blueberry agroecosystem. Annals of the Entomological Society of America 102(2): 275-287

Fetridge, E. D., J. S. Ascher, and G. A. Langellotto. 2008. The bee fauna of residential gardens in a suburb of New York City (Hymenoptera Apoidea). Annals of the Entomological Society of America 101(6):1067-1077.

Engel, M. S., J. S. Ascher, and D. Yanega. 2008. Ancylini Michener, 1944 (Insecta, Hymenoptera): proposed emendation of spelling to Ancylaini, to remove homonymy with Ancylini Rafinesque, 1815 (Mollusca, Gastropoda). Bulletin of Zoological Nomenclature 65(3): 198-201.

Rasmussen, C. and J. S. Ascher. 2008. Heinrich Friese (1860-1948): Names proposed and notes on a pioneer melittologist (Hymenoptera, Anthophila). Zootaxa 1833: 1-118.

Wagner, D. L. and J. S. Ascher. 2008. Rediscovery of Epeoloides pilosula (Hymenoptera: Apoidea: Apidae) in New England. Journal of the Kansas Entomological Society 81(2): 81-83.

Winfree, R., N. M. Williams, H. Gaines, J. S. Ascher, and C. Kremen. 2008. Wild pollinators provide majority of crop visitation across land use gradients in New Jersey and Pennsylvania. Journal of Applied Ecology 45: 793-802 45.

Matteson, K. C., J. S. Ascher, and G. A. Langellotto. 2008. Bee richness and abundance in New York City urban gardens. Annals of the Entomological Society of America 101(1): 140-150(11).

Kawakita, A., J. S. Ascher, T. Sota, M. Kato, and D. W. Roubik. 2007. Phylogenetic analysis of the corbiculate bee tribes based on 12 nuclear protein-coding genes (Hymenoptera: Apoidea: Apidae). Apidologie 39: 163-175.

Romey, W. L., J. S. Ascher, D.A. Powell, and M. Yanek. 2007. Impacts of logging on midsummer diversity of native bees (Apoidea) in a northern hardwood forest. Journal of the Kansas Entomological Society 80(4): 327\226338.

Taki, H., P. G. Kevan, and J. S. Ascher. 2007. Landscape effects of forest loss in a pollination system. Landscape Ecology 22(10): 1575-1587.

Ascher, J. S., M. S. Engel, and T. L. Griswold. 2006. A new species and subgenus of Oxaea from Ecuador (Hymenoptera: Andrenidae). Polskie Pismo Entomologiczne 75(4): 539-552.

Gardner, K.E., and J. S. Ascher. 2006. Notes on the native bee pollinators in New York apple orchards. Journal of the New York Entomological Society 114(1-2): 86-91.

Giles, V., and J. S. Ascher. 2006. Bees of the Black Rock Forest Preserve, New York (Hymenoptera: Apoidea). Journal of Hymenoptera Research 15(2): 208-231.

Ascher, J. S., P. Gambino, and S. Droege. 2006. Adventive Hylaeus (Spatulariell Popov) in the New World (Hymenoptera: Apoidea: Colletidae). Proceedings of the Entomological Society of Washington 108(1): 237-239.

Ascher, J. S., and M. S. Engel. 2006. On the availability of family-group names based on Scrapter (Hymenoptera: Colletidae). Entomological News 117(1): 117-119.

Buchmann, S. L., and J. S. Ascher. 2005. The plight of pollinating bees. Bee World 86: 71-74.

Ascher, J. S., and M. S. Engel. pp. 13-17 in Engel. 2005. Family-group names for Bees (Hymenoptera: Apoidea) [descriptions of new subfamily Scraptrinae, new tribe Neffapini, and new subtribe Hesperapina]. American Museum Novitates No. 3476, 33 pp.

Gusenleitner, F., M. Schwarz, J. S. Ascher, and E. Scheuchl. 2005. Korrekturen und Nachträge zu Gusenleitner & Schwarz (2002): Weltweite Checkliste der Bienengattung Andrena mit Bemerkungenund Ergänzungen zu paläarktischen Arten (Hymenoptera: Apidae, Andreninae, Andrena), Entomofauna 26(26): 437-472.

Kawakita, A., T. Sota, M. Ito, J. S. Ascher, H. Tanaka, M. Kato, D. W. Roubik. 2004. Phylogeny, historical biogeography, and character evolution in bumble bees (Bombus: Apidae) based on simultaneous analysis of three nuclear gene sequences. Molecular Phylogenetics and Evolution 31: 799-804.

Ascher, J. S. 2003. Evidence for the phylogenetic position of Nolanomelissa from nuclear EF-1α sequence data. In Rozen, J. G., Jr. A new tribe, genus, and species of South American panurgine bee (Andrenidae: Panurginae), oligolectic on Nolana (Nolanaceae). pp. 107-108, in Apoidea Neotropica: Homenagem aos 90 Anos de Jesus Santiago Moure. G. A. R. Melo, and I. Alves dos Santos, Eds. Criciúma: UNESC.

Kawakita, A., T. Sota, J. S. Ascher, M. Ito, H. Tanaka, M. Kato. 2003. Evolution and phylogenetic utility of alignment gaps within intron sequences of three nuclear genes in bumble bees (Bombus). Molecular Biology and Evolution 20: 87-92.

Ascher, J. S., and S. Patiny. 2002. A new name for the bee subgenus Stenostylus (Hymenoptera: Andrenidae). Entomological News 113: 140.

Schultz, T. R., M. S. Engel, and J. S. Ascher. 2001. Evidence for the origin of eusociality in corbiculate bees (Hymenoptera: Apidae). Journal of the Kansas Entomological Society 74(1): 10-16.

Ascher, J. S., B. N. Danforth, and S. Ji. 2001. Phylogenetic utility of the major opsin in bees (Hymenoptera: Apoidea): a reassessment. Molecular Phylogenetics and Evolution 19(1): 79-93.

Ascher, J. S. 2001. Hylaeus hyalinatus Smith, a European bee new to North America, with notes on other adventive bees (Hymenoptera: Apoidea). Proceedings of the Entomological Society of Washington 103(1): 184-190


Winter, K., L. Adams, R. Thorp, D. Inouye, L. Day, J. S. Ascher, and S. Buchmann. 2006. Importation of non-native bumble bees into North America: Potential consequences of using Bombus terrestris for greenhouse crop pollination in Canada, Mexico, and the United States. A white paper of the North American Pollinator Protection Campaign (NAPPC). Washington, DC: Coevolution Institute.

Ascher, J. S. Epeoloides pilosula (Cresson, 1878) [a cleptoparasite of Macropis oil bees] (Hymenoptera: [Apoidea:] Apidae: Apinae: Osirini) in Shepherd, M. D., D. M. Vaughn, and S. H. Black (Eds.). 2005. Red List of Pollinator Insects of North America. CD-Rom Version 1. Portland, Oregon: The Xerces Society for Invertebrate Conservation.

Danforth, B. N., and J. [S.] Ascher. 1999. Flowers and insect evolution. Science 283: 137. [Technical comment]


Ascher, J. S. and J. Pickering. 2011. Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila).
Bee species guide: &flags=HAS:
Bee species world checklist:

Ascher, J. S. and J. Pickering. 2009-2011. Discover Life/FAO World Bee Diversity: Interactive checklists of world bees by country.

Ascher, J. S. 2006-2011. AMNH BEES literature occurrence record database.

Ascher, J. S. 2006-2011. AMNH BEE specimen database
Species list:

Ascher, J. S. 2006-2011. AMNH BEES literature occurrence record database.

Ascher, J. S., C. Eardley, T. Griswold, G. A. R. Melo, A. Polaszek, M. Ruggiero, P. Williams, K. Walker, and N. Warrit. 2008.
Integrated Taxonomic Information System (ITIS) World Bee Checklist:

Ascher, J. S. 2006-2011. Discover life album: John Ascher and friends.
Species list:

Updated: 15 November, 2011

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