The butterflies of North America; third series - Edwards, William H. (William Henry), 1822 -1909 (Houghton, Mifflin, 1897)

The butterflies of Switzerland and the Alps of central Europe - Wheeler, George, 1858 -1947 (Eliott Stock, 1903)

The butterflies of the eastern United States and Canada : with special reference to New England - Riley, Charles V. (Charles Valentine), 1843 -1895 (The author, 1889)

The butterflies of the eastern United States and Canada with special reference to New England - Scudder, Samuel Hubbard, 1837 -1911 (S.H. Scudder, 1889)

The butterflies of the eastern United States. For the use of classes in zoology and private students - French, G. H. (George Hazen), 1841 -1935 (J.B. Lippincott Company, 1900)

The butterflies of the eastern United States; for the use of classes in zoology, and private students - French, G. H. (George Hazen), 1841 -1935 (J.B. Lippincott Company, 1890)

The butterflies of the eastern United States. For the use of classes in zoology, and private students - French, G. H. (George Hazen), 1841 -1935 (J. B. Lippincott Co, 1886)

The butterflies of the eastern United States; for the use of classes in zoology, and private students - French, G. H. (George Hazen), 1841 -1935 (J. B. Lippincott company, 1885)

The butterflies of the eastern United States. For the use of classes in zoology and private students - French, G. H. (George Hazen), 1841 -1935 (J.B. Lippincott Company, 1896)

The butterflies of the eastern United States. For the use of classes in zoology and private students - French, G. H. (George Hazen), 1841 -1935 (J.B. Lippincott company, 1886)

The butterflies of the west coast of the United States; illustrated with 940 figures in color-photography of butterflies from the west coast, nearly all of which were captured by the author, with accurate data for each specimen; with colored figures and descriptions of many new species and new varieties now first published - Wright, W. G. (William Greenwood), 1830 -1912 (The Whitaker & Ray Company (Incorporated), 1905)

The butterflies of the West Coast of the United States : with colored figures and descriptions of many new species and new varieties now first published - Wright, W. G. (William Greenwood), 1830 -1912 (Wright, 1905)

Butterflies. Vol. I-II - Bingham, C. T. (Charles Thomas), 1848 -1908 (Taylor and Francis, 1907)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, 1902)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page, 1898)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday & McClure, 1899)

The butterfly book : a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (W. Briggs, 1898)

The butterfly book; a popular guide to a knowledge of the butterflies of North America. With 48 plates in color-photography, reproductions of butterflies in the author's collection, and many text illustrations presenting most of the species found in the United States - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page, 1922)

The butterfly book; a popular guide to a knowledge of the butterflies of North America / The moth book; a popular guide to a knowledge of the moths of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1914)

The butterfly book; a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday & McClure Co, 1898)

The butterfly book; a popular guide to a knowledge of the butterflies of North America - Holland, W. J. (William Jacob), 1848 -1932 (Doubleday, Page & Co, 1904)

Butterfly counts - Opler, Paul A. (The Society, 1984)

Calendrier de faune et de flore pour les environs d'Aix; ou, Premie`re apparition des principaux insectes et premie`re floraison des ve´ge´taux qui s'y trouvent - Boyer de Fonscolombe, Etienne Laurent Joseph Hippolyte, 1772 -1853 (Impr. de Mme Veuve Tavernier, 1845)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1875)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1876)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1878)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1879)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1881)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1882)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1884)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1887)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1888)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1889)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1890)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1892)