Clarke J. F. G., 1987: The correct identity of Acleris inana (Robinson) (Lepidoptera: Tortricidae). 2 pp. Proc. Entomol. Soc. Wash. 89(1): 175-176.

 Clarke J. F. G., : Index to “Exotic Microlepidoptera”, vol. V. 4 pp. [M54] 

 Clarke S. R., Debarr G. L., Berisford C. W., 1988: Differential susceptibility of Toumeyella pini (King) (Homoptera: Coccidae) to Pyrethroid and organophosphate insecticides: a factor in outbreaks in southern pine seed orchards. 3 pp. 

 Clarkson B., Albertoni F. F., Fikáček M., 2014: Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae). 38 pp. Acta entomologica Musei nationalis Pragae 54(1): 157-194.

 Clarkson R. W., Robinson A. t., Hoffnagle T. L., 1997: Asian tapeworm (Bothriocephalus acheilognathi) in native fishes from the Little Colorado River, Grand Canyon, Arizona. 4 pp. 

 Clastrier J., 1966: Cératopogonidés des iles Canaries (Dipt. Nematocera). 18 pp. [ASF 02693] [M57] 

 Clastrier J., 1972: Présence en europe occidentale de Leptoconops (L.) bidentatus Gutsevich, 1960 (Diptera, Ceratopogonidae). 8 pp. 

 Clastrier J., 1973: Wyeomyia (Dendromyia) trifurcata n. sp. nouveau moustique de la Guyane Francaise (Diptera, Culicidae). 9 pp. 

 Clastrier J., 1974: Leptoconops (Holoconops) laosensis n. sp. du Sud-Est Asiatique (Diptera, Ceratopogonidae). 4 pp. 

 Clastrier J., 1975: Description of some males of Holoconops. 21 pp. (in French). [62524] Annales de la Societe entomologique de France (N.S.) 11(3): 587-607.

 Clastrier J., 1976: Alluaudomyia prima n. sp. dela Guyane Francaise (Diptera, Ceratopogonidae). 3 pp. 

 Clastrier J., 1977: Description d’un nouvel Alluaudomyia de la République de Guinée (Diptera, Ceratopogonidae). 4 pp. 

 Clastrier J., 1983: Ceratopogonidae des Iles Seychelles. (Diptera, Nemotocera). 83 pp. Mémoires du Muséum national d’Histoire naturelle (A) 126: Discount 20%!

 Clastrier J., 1983: Description of three new afrotropical species of Ceratopogonidae (Dipt., Nematocera) belonging to the genera Jenkinshelea and Neosphaeromias. 12 pp. (in French). [DIP 4703]  Annales de la Societe entomologique de France (N.S.) 19(3): 261-272.

 Clastrier J., Senevet G., 1961: Les moustiques du Sahara central. 13 pp. 

 Claußen C., Standfuss K., 2017: Schwebfliegen (Diptera, Syrphidae) im Olivengürtel SO-Thessaliens/GR, neue Funde und Gesamtverzeichnis. 20 pp. Entomofauna 38: 405-424.

 Clausen P. C., 1935: Insect parasites and predators of insect pests. 22 pp. 

 Clausen P. J., 1983: The genus Axysta and a new genus of nearctic Ephydridae (Diptera). 18 pp. Trans. Amer. Ent. Soc. 109(1): 59-76.

 Clausen P. J., 1983: The genus Hyadina and a new genus of Nearctic Ephydridae (Diptera). 28 pp. Trans. Amer. Ent. Soc. 109(2): 201-228.

 Clausen P. J., 1985: A revision of the neotropical species of the genus Parydra (Diptera: Ephydridae). 24 pp. Trans. Amer. Ent. Soc. 11(3): 361-384.

 Claussen C., 1989: Syrphiden aus Marokko (Diptera, Syrphidae). 19 pp. Entomofauna 10/24: 357-375.

 Claussen C., 1991: Eine neue Orthonevra von Korsika (Diptera, Syrphidae). 7 pp. Entomofauna 12/16: 205-211.

 Claussen C., Hauser M., 1990: Neue Syrphiden vorkommen aus Marokko und Tunesien (Diptera, Syrphidae). 6 pp. Entomofauna 11/25: 433-438.

 Claussen C., Hayat R., 1997: A new species of the genus Neoascia Williston, 1886 (Diptera, Syrphidae) from North-East Turkey. [Eine neue Art der Gattung Neoascia Williston, 1886 (Diptera, Syrphidae) aus der Osttürkei.] 4 pp. Studia Dipterologica 4(1): 215-218.

 Claussen C., Lucas J. A. W., 1988: Zur Kenntnis der Schwebfliegenfauna der Insel Kreta mit der Beschreibung von Eumerus minotaurus sp. n. (Diptera, Syrphidae). 36 pp. Entomofauna 9/5: 133-168.

 Claussen C., Thompson F. C., 1996: Zur Identität und Synonymie der von Camillo Rondani beschriebenen Chilosia-Arten (Diptera, Syrphidae). [On the identity and synonymy of the Cheilosia species described by Camillo Rondani (Diptera, Syrphidae).] 7 pp. Studia Dipterologica 3(2): 275-281.

 Claussen C., Vujic A., 1993: Cheilosia katara n. sp. aus Zentralgriechenland (Diptera: Syrphidae). 6 pp. 

 Clay T., 1935: Two new genera of Mallophaga. 4 pp. 

 Clay T., 1938: New species of Mallophaga from Afropavo congensis Chapin. 11 pp. 

 Clay T., 1938: The names of some mallophagen genera. 2 pp. 

 Clay T., 1939: A note on some mallophagan names. 3 pp. 

 Clay T., 1940: British Graham Land Expedition 1934 – 37 scientific reports. Anoplura. 24 pp. [M40] 

 Clay T., 1940: Mallophagan Miscellany. – Part I. 7 pp. 

 Clay T., 1943: Bird lice from the Tinamidae. 13 pp. 

 Clay T., 1946: Mallophaga Miscellany. No. 3. 5 pp. 

 Clay T., 1946: The mallophagan parasites of the passeriformes. 3 pp. 

 Clay T., 1947: A preliminary key to the genera of the Menoponidae (Mallophaga). 21 pp. 

 Clay T., 1947: Mallophaga Miscellany. – No. 4. 13 pp. 

 Clay T., 1947: The systematic position of the Musophagi as indicated by their mallophagan parasites. 3 pp. 

 Clay T., 1948: A new type of external organ found in the Mallophaga. 3 pp. 

 Clay T., 1948: Relationships within the Sterninae as indicated by their mallophagan parasites. 2 pp. 

 Clay T., 1949: Piercing mouth-parts in the biting lice (Mallophaga). 3 pp. 

 Clay T., 1949: Systematic notes on the Piaget collections of Mallophaga. – Part I. 91 pp. 

 Clay T., 1951: An introduction to a classification of the avian Ischnocera (Mallophaga): Part I. 24 pp. The Transactions of the Royal Entomological Society of London 102(2)

 Clay T., 1951: Systematic notes on the Piaget collections of Mallophaga. – Part III. 11 pp. 

 Clay T., 1951: Systematic notes on the Piaget collections. – Part II. 10 pp. 

 Clay T., 1951: The Mallophaga as an aid to the classification of birds with special reference to the structure of feathers. 9 pp. 

 Clay T., 1953: Revision of the genera of Mallophaga. – I. The Rallicola-complex. 25 pp. 

 Clay T., 1954: The post-spiracular seta and Sensillus in the Mallophaga (Insecta). 3 pp. 

 Clay T., 1955: A new genus of Ischnocera (Mallophaga). 7 pp.