First records of Hylaeus (Paraprosopis) pictipes Nylander, 1852 (Hymenoptera: Colletidae) in North America

Jason Gibbs, Holger H. Dathe


Cavity-nesting bees, such as members of the genus Hylaeus Fabricius (Hymenoptera: Colletidae), are prone to accidental introductions by human-mediated transportation. The first records of Hylaeus (Paraprosopis) pictipes Nylander, 1852 in North America are reported. Hylaeus pictipes is a European species newly discovered from Mississauga, Ontario, Canada; Meadville, Pennsylvania, USA; and Cleveland, Ohio, USA. Notes on its identification and a discussion of exotic bees in North America are provided.


adventive species; Apoidea; bees; distribution; Hylaeinae

Full Text:



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.

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

Ascher, J.S. & J. Pickering. 2016. Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). Draft-45. Available from:

Bartomeus, I., J.S. Ascher, J. Gibbs, B.N. Danforth, D.L. Wagner, S.M. Hedtke & R. Winfree. 2013. Historical changes in northeastern US bee pollinators related to shared ecological traits. Proceedings of the National Academy of Sciences 110(12): 4656–4660.

Becker, R.A., A.R. Wilks, R. Brownrigg, T.P. Minka & A. Deckmyn. 2016. maps: draw geographical maps. R package version 3.1.1.

Bivan, R., T. Keitt & B. Rowlingson. 2016. rgdal: Bindings for the Geospatial Data Abstraction Library. R package version 1.1-10.

Cameron, S.A., H.C. Lim, J.D. Lozier, M.A. Duennes & R. Thorp. 2016. Test of the invasive pathogen hypothesis of bumble bee decline in North America. Proceedings of the National Academy of Sciences 113(16): 4386–4391.

Cane, J.H. 2003. Exotic nonsocial bees (Hymenoptera: Apiformes) in North America: ecological implications; pp. 113–126, in: K. Strickler and J.H. Cane (eds.). Nonnative crops, whence pollinators of the future? Lanham, MD: Thomas Say Publications in Entomology: Proceedings of the Entomological Society of America.

Dathe, H.H. 1980. Die Arten der Gattung Hylaeus F. in Europa (Hymenoptera: Apoidea, Colletidae). Mitteilungen Zoologisches Museum in Berlin 56: 207–294.

Dathe, H.H., E. Scheuchl & E. Ockermüller. 2016. Illustrierte Bestimmungstabelle für die Arten der Gattung Hylaeus F. (Maskenbienen) in Deutschland, Österreich und der Schweiz. Entomologica Austriaca Supplement: 1–55.

Gibbs, J. & C.S. Sheffield. 2009. Rapid range expansion of the wool-carder bee, Anthidium manicatum (Linnaeus) (Hymenoptera: Megachilidae), in North America. Journal of the Kansas Entomological Society 82(1): 21–29.

Goulson, D. 2003. Effects of introduced bees on native ecosystems. Annual Review of Ecology, Evolution, and Systematics 34: 1–26.

Hedtke, S.M., E.J. Blitzer, G.A. Montgomery & B.N. Danforth. 2015. Introduction of non-native pollinators can lead to trans-continental movement of bee-associated fungi. PloS ONE 10(6): e0130560.

Hinojosa-Díaz, I. 2008. The giant resin bee making its way west: First record in Kansas (Hymenoptera: Megachilidae). ZooKeys 1: 67–71.

Janvier, H. 2012. Comportement d’abeilles Colletidae (Hymenoptera): Les genres Hylaeus, Chilicola, Colletes, Pasiphae, Policana, Cadequala, Caupolicana, Lonchopria et Diphaglossa. Holger H. Dathe, Michael Kuhlmann, and Claire Villemant (eds) Ansfelden, Austria: Schwarz, Maximilian. vii + 181 pp.

Koster, A. 1986. Het genus Hylaeus in Nederland (Hymenoptera, Colletidae). Zoologische Bijdragen 36: 1–120.

Ksiazek, K., R. Tonietto & J.S. Ascher. 2014. Ten bee species new to green roofs in the Chicago area. The Great Lakes Entomologist 47(1, 2): 87–92.

Laport, R.G. & R.L. Minckley. 2012. Occupation of active Xylocopa virginica nests by the recently invasive Megachile sculpturalis in Upstate New York. Journal of the Kansas Entomological Society 85(4): 384–386.

Linsley, E.G. 1958. The ecology of solitary bees. Hilgardia 27(19): 543–599.

MacIvor, J.S. & L. Packer. 2015. ‘Bee hotels’ as tools for native pollinator conservation: a premature verdict? PloS ONE 10(3): e0122126.

Magnacca, K.N., J. Gibbs & S. Droege. 2013. Notes on alien and native bees (Hymenoptera: Apoidea) from the Hawaiian Islands. Bishop Museum Occasional Papers 114: 61–65.

Magnacca, K.N., W.T. Nagamine & H.H. Dathe. 2011. Hylaeus strenuus (Hymenoptera: Colletidae), a new alien bee on O‘ahu. Bishop Museum Occasional Papers 109: 23–24.

Martins, K.T., É. Normandin & J.S. Ascher. 2017. Hylaeus communis (Hymenoptera: Colletidae), a new exotic bee for North America with generalist foraging and habitat preferences. The Canadian Entomologist: 1–14.

Michener, C.D. 2007. The bees of the world. 2nd ed. Baltimore: The Johns Hopkins University Press. xvi + [i] + 953 pp.

Mitchell, T.B. 1960. Bees of the Eastern United States: volume I. N. C. Agricultural Experimental Station Technical Bulletin 141: 1–538.

Normandin, É., N.J. Vereecken, C.M. Buddle & V. Fournier. 2017. Taxonomic and functional trait diversity of wild bees in different urban settings. PeerJ: e3051.

Pagnucco, K.S., G.A. Maynard, S.A. Fera, N.D. Yan, T.F. Nalepa & A. Ricciardi. 2015. The future of species invasions in the Great Lakes-St. Lawrence River basin. Journal of Great Lakes Research 41: 96–107.

R Core Team. 2015. R: A language and environment for statistical computing. R version 3.2.2. R Foundation for Statistical Computing.

Romankova, T.G. 2007. Bees of the genus Hylaeus of Ontario (Hymenoptera: Apoidea: Colletidae). Journal of the Entomological Society of Ontario 138: 137–154.

Roulston, T.H. & R.L. Malfi. 2012. Aggressive eviction of the eastern carpenter bee (Xylocopa virginica (Linnaeus)) from its nest by the giant resin bee (Megachile sculpturalis Smith). Journal of the Kansas Entomological Society 85(4): 387–388.

Scheuchl, E. & W. Willner. 2016. Taschenlexikon der Wildbienen Mitteleuropas; Alle Arten im Porträt. Wiebelsheim, Germany: Quelle & Meyer Verlag GmbH & Co. 917 pp.

Sheffield, C.S., S. Dumesh & M. Cheryomina. 2011. Hylaeus punctatus (Hymenoptera: Colletidae), a bee species new to Canada, with notes on other non-native species. Journal of the Entomological Society of Ontario 142: 29–43.

Sheffield, C.S., T. Griswold & M.H. Richards. 2010. Discovery of the Western Palearctic bee, Megachile (Pseudomegachile) ericetorum (Hymenoptera: Megachilidae), in Ontario, Canada. Journal of the Entomological Society of Ontario 141: 85–92.

Snelling, R.R. 1966. Studies on North American bees of the genus Hylaeus. 3. The Nearctic subgenera (Hymenoptera: Colletidae). Bulletin of the Southern California Academy of Sciences 65: 164–175.

Snelling, R.R. 1970. Studies on North American bees of the genus Hylaeus. 5. The subgenera Hylaeus, s. str. and Paraprosopis (Hymenoptera: Colletidae). Los Angeles County Museum Contributions in Science 180: 1–59.

Snelling, R.R. 1983. Studies on North American bees of the genus Hylaeus. 6. An adventive Palearctic species in southern California (Hymenoptera: Colletidae). Bulletin of the Southern California Academy of Sciences 82: 12–16.

Strange, J.P., J.B. Koch, V.H. Gonzalez, L. Nemelka & T. Griswold. 2011. Global invasion by Anthidium manicatum (Linnaeus) (Hymenoptera: Megachilidae): Assessing potential distribution in North America and beyond. Biological Invasions 13(9): 2115–2133.

Weissmann, J.A., A. Picanço, P.A.V. Borges & H. Schaefer. 2017. Bees of the Azores: an annotated checklist (Apidae, Hymenoptera). ZooKeys 642: 63–95.

Westrich, P. 1990. Die Wildbienen Baden-Württembergs. Spezieller Teil: die Gattungen und Arten. Stuttgart, Germany: Eugen Ulmer GmbH & Co. 437–972 pp.

Wickham, H. 2009. ggplot2: elegant graphics for data analysis. New York, New York: Springer. 213 pp.