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Published in The Auk, in 1898, in volume 15, pages 207-208

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Published in Proc. US. Natl. Mus, in 1894, in volume 17, pages 345-351

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Published in Annals And Magazine of Natural History, in 1891, in volume 7, pages 445-446

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Published in Annals And Magazine of Natural History, in 1862, in volume 10, pages 216-224

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1911, in volume 7, pages 96-97

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Published in Proceedings of The American Philosophical Society, in 1892, in volume 30, issue 137, pages 40-44

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1891, in volume 43, pages 411-430

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Published in Annals And Magazine of Natural History, in 1888, in volume 2, pages 352-354

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Published in Nautilis, in 1893, in volume 7, pages 52-56

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Published in Proceedings of The American Philosophical Society, in 1892, in volume 30, issue 138, pages 245

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Published in Biol. Centralblatt., in 1890, in volume 10, pages 475-483

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Published in Annals and Magazine of Natural History, in 1889, in volume 3, issue 15, pages 273-276

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Published in Revue Suisse De Zoologie, in 2000, in volume 107, pages 359-388

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Published in Revue Suisse De Zoologie, in 2004, in volume 111, pages 631-642

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Published in Journal of Hymenoptera Research, in 2005, in volume 14, pages 66-68

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1896, in volume 48, pages 395-460

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Published in Revue Suisse De Zoologie, in 2004, in volume 111, pages 395-424

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Published in Bulletin of Zoological Nomenclature, in 2002, in volume 59, issue 3, pages 180-184

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Published in Asa Gray correspondence. Senders B-Ba, in 1885, pages 1-6

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Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1-6

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Published in William Marriot Canby letters to Asa Gray, 1861-1895, pages 1-2

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in 1853, pages 1-2

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in 1853, pages 1-2

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Published in Phytologia, in 1990, in volume 68, pages 234-238

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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2

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Published in Erythea, in 1893, in volume 1, pages 145-147

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Published in Nautilus, in 1913, in volume 26, pages 109-110

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Published in Nautilis, in 1939, in volume 53, pages 8-16

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Published in Rhodora, in 1908, in volume 10, issue 119, pages 208

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Published in Stuttgarter Beiträge Naturkunde, in 1961, in volume 58, pages 1-13

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Published in Erythea, in 1893, in volume 1, pages 197-206

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Published in Entomological News, in 1987, in volume 98, pages 135-139

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Published in Proceedings of the Malacological Society of London, in 1907, in volume 7, issue 5, pages 243

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