Channel Islands Lepidoptera - Shaffer, Michael, 1936 -2009 (Michael Shaffer, 2008)

Chapters on ants - Treat, Mary, 1830 -1923 (Harper & brothers, 1879)

Check list of insects of the Dominion of Canada - Natural History Society of Toronto. (s.n.], 1883)

Check-list of the insects of Connecticut - Britton, Wilton Everett, 1868 -1939 (Printed for the State Geological and Natural History Survey, 1920)

Check-list of the insects of Connecticut - Britton, Wilton Everett, 1868 -1939 (State Geological and Natural History Survey, 1920)

Check list of the Lepidoptera of Boreal America - Smith, John Bernhard, 1858 -1912 (American Entomological Society, 1903)

Check list of the Lepidoptera of Canada and the United States of America ... - McDunnough, James H. (James Halliday) 1877 -1962 (1938)

Choice irises, peonies, and poppies : surplus from the private collection at Fairmount Iris Gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairmount Iris Gardens, 1932)

Cistula entomologica (E. W. Janson, 1870)

Cistula entomologica (E. W. Janson, 1872)

Cistula entomologica (E. W. Janson, 1876)

A classification of living animals - Rothschild, Nathaniel Mayer Victor Rothschild, Baron, 1910 -1990 (Wiley, 1961)

A classified catalogue of the Lepidoptera of Canada - Ross, Alexander Milton, 1832 -1897 (Rowsell and Hutchison, 1872)

A classified index and synopsis of The animal kingdom arranged in conformity with its organization - Gray, John Edward 1800 -1875 (Printed for Whittaker and Co, 1835)

Coleoptera of the state of New York - Emmons, Ebenezer, 1799 -1863 (C. Van Benthuysen & Co, 1854)

Coleoptera und Lepidoptera : ein systematisches Verzeichniss, mit beygesetzten Preisen der Vorräthe - Dahl, Georg, 1769 -1831 (Gedruckt bey J. E. Akkermann, 1823)

Le Coléoptériste, ou, Répertoire des travaux sur les coléoptères de l'ancien monde (G. Chéron, 1890)

Le Coléoptériste, ou, Répertoire des travaux sur les coléoptères de l'ancien monde (G. Chéron, 1891)

Colias myrmidone Esp.; die Stammform und ihre Abarten in Österreich-Ungarn - Pieszczek, Adolf. (Osterreichischer Entomologen-Verein, 1917)

The collected scientific papers of the late William Alexander Forbes - Beddard, Frank E. (Frank Evers), 1858 -1925 (R.H. Porter, 1885)

The Collecting net - Marine Biological Laboratory (Woods Hole, Mass.) (The Collecting net, 1928)

Collection iconographique et historique des chenilles; ou, Description et figures des chenilles d'Europe, avec l'histoire de leurs métamorphoses, et des applications à l'agriculture - Boisduval, Jean Alphonse, 1801 -1879 (Librairie encyclopédique de Roret, 1832)

Color polymorphism in Sphingid caterpillars (Lepidoptera: Sphingidae) - Fink, Linda S. (1989)

Colored plates of The butterflies of the west coast; being actual photographs, life-size, and in all their natural colors - Wright, W. G. (William Greenwood), 1830 -1912 (Printed for the author, 1907)

Colour in nature; a study in biology - Newbigin, Marion I. (Marion Isabel), 1869 -1934 (J. Murray, 1898)

The colours of animals : their meaning and use, especially considered in the case of insects - Poulton, Edward Bagnall, Sir, 1856 -1943 (D. Appleton, 1890)

Common British insects selected from the typical beetles, moths, and butterflies of Great Britain - Wood, J. G. (John George), 1827 -1889 (Longmans, Green, and co, 1882)

Comparative zoology - Orton, James, 1830 -1877 (Harper & brothers, 1894)

Comparative zoology : structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper, 1895)

Comparative zoology, structural and systematic : for use in schools and colleges - Orton, James, 1830 -1877 (Harper & Brothers, 1889)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper & brothers, 1884)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (American book company, 1904)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper & brothers, 1893)

The complete book of British butterflies - Frohawk, Frederick William, 1861 -1946 (Ward, Lock, 1934)

The complete writings of Thomas Say on the entomology of North America - Ord, George, 1781 -1866 (1883)

The complete writings of Thomas Say on the entomology of North America - LeConte, John L. (John Lawrence), 1825 -1883 (A. E. Foote, 1891)

The complete writings of Thomas Say on the entomology of North America - Ord, George, 1781 -1866 (Baillière brothers, 1859)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1881)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1886)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1884)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1888)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1885)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1887)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1879)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1884)

Congrès international d'entomologie : [proceedings] (Hayez, 1939)

Congrès international d'entomologie : [proceedings] (Hayez, 1938)

Congrès international d'entomologie : [proceedings] (Hayez, 1958)

Congrès international d'entomologie : [proceedings] (Hayez, 1910)

Congrès international d'entomologie : [proceedings] (Hayez, 1971)

Congrès international d'entomologie : [proceedings] (Hayez, 1980)

Congrès international d'entomologie : [proceedings] (Hayez, 1992)

Congrès international d'entomologie : [proceedings] (Hayez, 2000)

Congrès international d'entomologie : [proceedings] (Hayez, 2016)

Congrès Scientifiques de France (1854)

Conradi Gesneri medici Tigurini Historiae animalium liber primus de quadrupedibus viuiparis : opus philosophis, medicis, grammaticis, philologis, poëtis, & omnibus rerum linguarumq́ue variarum studiosis, vtilissimum simul iucundissimumq́ue futurum - Gessner, Conrad, 1516 -1565 (In Bibliopolio Cambieriano, 1604)

Conradi Gesneri medici Tigurini Historiæ animalivm liber IV. : Qui est de piscium & aquatilium animantium natura. : Cum iconibus singulorum ad viuum expressis ferè omnibus DCCXII ... Continentur in hoc volumine, Gulielmi Rondeletii quoque, Medicinae Professoris Regij in Schola Monspeliensi, & Petri Bellonii Cenomani, medici hoc tempore Lutetiae eximij, de aquatlium singulis scripta. Paralipomena quaedam ad finem adiecta sunt - Gessner, Conrad, 1516 -1565 (In bibliopolio Andreae Cambieri, 1604)

Conservation overview of butterflies in the southern headwaters at risk project (SHARP) area - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Biodiversity and Species At Risk Section, 2004)

Conservation status of Haplopappus carthamoides var. susquarrosus in Montana - Lesica, Peter (Montana Natural Heritage Program, 1995)

Considérations générales sur l'ordre naturel des animaux composant les classes des crustacès, des arachnides, et des insectes; avec un tableau méthodique de leurs genres, disposés en familles - Latreille, P. A. (Pierre André), 1762 -1833 (F. Schoell, 1810)

Conspectus florae Graecae - Halácsy, Eugen v., 1842 -1913 (Sumptibus Guilelmi Engelmann, 1901)

Conspectus florae Graecae - Halácsy, Eugen v., 1842 -1913 (Sumptibus Guilelmi Engelmann, 1902)

Conspectus florae Graecae - Halácsy, Eugen v., 1842 -1913 (Sumptibus Guilelmi Engelmann, 1904)

A conspectus of the butterflies and moths found in Britain : with their English and systematic names, times of appearances, sizes, colours, their caterpillars, and various localities - Rennie, James, 1787 -1867 (W. Orr, 1832)

A conspectus of the butterflies and moths found in Britain; with their English and systematic names, times of appearance, sizes, colours; their caterpillars, and various localities - Rennie, James, 1787 -1867 (W. Orr, 1832)

Contribución a la entomología cubana - Gundlach, Johannes Christoph, 1810 -1896 (G. Montiel, 1881)