Halictus tumulorum (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Halictus tumulorum" in English language version.

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archive.org

Edward Saunders 1896, The Hymenoptera Aculeata of the British Isles London. pdf us.archive Full text with illustrations]

Antonelli, Alexandre; Johan Dahlberg, C.; Carlgren, Kaisa H. I.; Appelqvist, Thomas (August 2009). "Pollination of the Lady's slipper orchid ( Cypripedium calceolus ) in Scandinavia - taxonomic and conservational aspects". Nordic Journal of Botany. 27 (4): 266–273. doi:10.1111/j.1756-1051.2009.00263.x.