Butterfly counts - Opler, Paul A. (The Society, 1982)

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

Butterfly-hunting in many lands : notes of a field naturalist - Poulton, Edward Bagnall, Sir, 1856 -1943 (Longmans, Green, and co, 1912)

The calendar of nature, or, The seasons of England - Cradock, E. Grove, Mrs. (Dickinson, Bros, 1849)

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.], 1880)

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.], 1883)

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.], 1892)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1894)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1895)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1900)

The Canadian entomologist - Entomological Society of Canada (1863-1871) (Entomological Society of Canada [etc.], 1908)

Caroli a Linné ... Systema vegetabilium :secundum classes, ordines, genera, species. Cum characteribus, differentiis et synonymiis - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (Sumtibus J.G. Cottae, 1819)

Caroli Linnæi ... Systema vegetabilium - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (sumtibus Librariae Dieterichianae, 1825)

Catalog der Conchylien-Sammlung, mit Hinzufügung der bis jetzt publicirtne recenten Arten, sowie der ermittelten Synonyma - Paetel, Friedrich, 1812 -1888 (1889)

Catalog der Conchylien-Sammlung, mit Hinzufügung der bis jetzt publicirtne recenten Arten, sowie der ermittelten Synonyma - Paetel, Friedrich, 1812 -1888 (1890)

Catalog der Conchylien-Sammlung : nebst Uebersicht des angewandten Systems - Paetel, Friedrich, 1812 -1888 (Paetel, 1873)

Catalog der Conchylien-Sammlung - Paetel, Friedrich, 1812 -1888 (Gebrüder Paetel, 1883)

Catalog der Lepidopteren des palaearctischen Faunengebietes - Staudinger, Otto, 1830 -1900 (1901)

Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

A catalogue/checklist of the butterflies of America, north of Mexico - Miller, Lee D. (Lepidopterists' Society, 1981)

Catalogue of diurnal Lepidoptera described by Fabricius in the collection of the British museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1869)

Catalogue of family-group and genus-group names (Lepidoptera : Rhopalocera) - Bridges, Charles A. (C.A. Bridges, 1988)

Catalogue of injurious insects in Japan (exclusive of animal parasites) - Shiraki, Tokuichi, 1882 -1970. (1952)

Catalogue of insects found in New Jersey - Smith, John Bernhard, 1858 -1912 (John L. Murphy, 1890)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1902)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1921)

A catalogue of the American Hesperiidae : indicating the classification and nomenclature adopted in the British Museum (Natural History). Pt. I, Introduction and Group A, Pyrrhopyginae - British Museum (Natural History). Department of Entomology. (Printed by order of the Trustees of the British Museum, 1951)

A catalogue of the American Hesperiidae : indicating the classification and nomenclature adopted in the British Museum (Natural History). Pt. I, Introduction and Group A, Pyrrhopyginae - British Museum (Natural History). Department of Entomology. (Printed by order of the Trustees of the British Museum, 1952)

A catalogue of the American Hesperiidae : indicating the classification and nomenclature adopted in the British Museum (Natural History). Pt. I, Introduction and Group A, Pyrrhopyginae - British Museum (Natural History). Department of Entomology. (Printed by order of the Trustees of the British Museum, 1953)

A catalogue of the American Hesperiidae : indicating the classification and nomenclature adopted in the British Museum (Natural History). Pt. I, Introduction and Group A, Pyrrhopyginae - British Museum (Natural History). Department of Entomology. (Printed by order of the Trustees of the British Museum, 1955)

A catalogue of the butterflies known to occur in Indiana / by W. S. Blatchley - Blatchley, W. S. (Willis Stanley), 1859 -1940 (s.n, 1891)

Catalogue of the collection of diurnal Lepidoptera formed by the late William Chapman Hewitson, of Otlands, Walton-on Thames; and bequeathed by him to the British Museum - Hewitson, William C. (William Chapman), 1806 -1878 (John Van Voorst, 1879)

Catalogue of the Doubleday collection of Lepidoptera - South Kensington Museum, London. Bethnal Green Branch. (Chapman & Hall, 1880)

Catalogue of the family-group, genus-group and species-group names of the Hesperioidea (Lepidoptera) of the world - Bridges, Charles A. (C.A. Bridges, 1994)