Rabaud E., 1897: Sur la nidification de Ceratina callosa F. (Hymenoptére). 4 pp. 

 Racheli T., Racheli L., 2003: Areas of endemism, refugia, and the Ecuadorian Ithomiinae (Lepidoptera: Nymphalidae): A point of view. 3 pp. Entomologische Zeitschrift 113(7): 220-222.

 Rack G., Mahunka S., 1993: Bibliographia Tarsonemidologica XII (1990 – 1992). 8 pp. [ARA 1596] Folia Entomologica Hungarica (S.N.) 54: 115-122.

 Rack G., Mahunka S., 1996: Bibliographia Tarsonemidologica XIII (1993-1995). 10 pp. [ARA 1597] Folia Entomologica Hungarica (S.N.) 57: 227-236.

 Rácz I., 1992: Orthopteren des Ungarischen Naturwissenschaftlichen Museums, Budapest. I: Tettigonidae. 9 pp. [ORT 459] Folia Entomologica Hungarica (S.N.) 53: 155-163.

 Radchenko A. G., Czechowski W., Czechowska W., 1997: The genus Myrmica Latr. (Hymenoptera, Formicidae) in Poland – a survey of species and a key for their identification. 20 pp. [51895] Annales Zoologici 47/3-4: 481-500

 Radchenko A. G., Czechowski W., Czechowska W., 1998: The genus Tetramorium Mayr (Hymenoptera, Formicidae) in Poland – a survey of species and a key for their identification. 12 pp. [51896] Annales Zoologici 48/1-2: 107-118

 Radchenko A., 1997: Tetraponera pisarskii sp. nov. – the first native member of subfamily pseudomyrmicinae from Palaearctic Asia. 2 pp. [HYM 3184] Annales Zoologici 47/3-4: 479-480

 Radchenko A., 2003: Perissomyrmex nepalensis sp. nov. – new evidence of Old World origins for the genus (Hymenoptera, Formicidae). 10 pp. [M37] [M63] Entomologica Basiliensia 25: 13-22.

 Radchenko V. G., 1992: Origin of eusociality in insects: solving of the problem of polygynous colony foundation within the framework of the haplodiploidy hypothesis. 5 pp. (in Russian). Entomologitsheskoe obozrenie 71(3): 505-509.

 Radford C. D., 1950: The mites (Acarina) parasitic on mammals, birds and reptiles. 29 pp. 

 Radford C. D., 1953: The mites (Acarina: Analgesidae) living on or in the feathers of birds. 32 pp. 

 Radford C. D., 1954: A new larval mite from Eritrea (Acrina: Trombiculidae). 4 pp. 

 Radford C. D., 1954: Observations on the fur mites (Acarina Myobiidae). 11 pp. 

 Radford C. D., 1954: Some mites of Yemen. Collected by the medical mission of the United States Naval medical research unit No. 3. 19 pp. 

 Radford C. D., 1954: The larval genera and species of “Harvest mites” (Acarina: Trombiculidae). 30 pp. 

 Radford C. D., 1955: Riviste sintetiche. Acarology - or the study of mites (Acarina). 18 pp. 

 Rádl E., 1905: Spory o duši zvířat. 10 pp. 

 Rado G., 1968: Étude des Otolithes sarmatiens de Copacel-Chijic (Bassin du crisul repede). 5 pp. 

 Rafalski J., 1990: Acopauropus szeptyckii sp. n. (Pauropoda, Eurypauropodidae) from North Korea. 7 pp. [EVE 603] Acta zoologica cracoviensia 33/24: 513-519.

 Rafes P. M., 1956: Insects- pests of Elaeagnus calligonum, and Tamarix, growing on the Naryn sands (semidesert toward the East of the Volga). 13 pp. (in Russian). Entomologitsheskoe obozrenie 35(4): 805-817.

 Raffray A., 1908: Psélaphides nouveaux du Congo des collections du Musée Royal d’Histoire naturelle de Bruxelles. 12 pp. [M06] 

 Raffray A., 1908: Psélaphides récolltés dans les montagnes des Nilghiris (Présidence de madras) et dans le district de Belgaum (Présidence de Bombay), Inde Anglaise, par M.M. H.-Leslie Andrewes et H.-S. Andrewes. Description d’especes nouvelles. 8 pp. 

 Raffray A., 1914: Annals of the South African Museum. Volume X. Part XI. containing: 19. – Description of a new genus and species of Termitobious Pselaphidae (Coleoptera). 3 pp. [M38] 

 Raffray A., 1914: H. Sauter’s Formosa-Ausbeute. Pselaphidae (Col.) II. 5 pp. [M38] 

 Rage J. C., 1988: The oldest known colubrid snakes. The state of the art. 18 pp. [80879] Acta zoologica cracoviensia

 Rageau J., 1951: Phlébotomes du Cameroun. 8 pp. 

 Rageau J., 1953: Clés pour l’identification des tiques du Cameroun. 13 pp. 

 Rageau J., Adam J. P., 1953: Note sur les Phlébotomes d’Evodoula (Cameroun francais). 8 pp. 

 Rageau J., Vervent G., 1959: Le genre Taeniorhynchus (Diptera, Culicidae) en nouvelle-Calédonie et aux nouvelles-Hébrides. 9 pp. 

 Rahayu D. L., Ng. P. K. L., 2005: On two new species of the genera Haberma and Parasesarma (Crustacea: Decapoda: Brachyura: Sesarmidae). 12 pp. Zoologische Mededelingen Leiden 79 (2): 167-178.

 Rai H., 1979: Microbiology of Central Amazon Lakes. 17 pp. Amazoniana 6(4): 583-599.

 Rajski A., 1967: Autecological-zoogeographical analysis of moss mites (Acari, Oribatei) on the basis of fauna in the Poznan environs. Part I. 98 pp. [M39] [78507] Polskie Pismo Entomologiczne 37(1): 69-166.

 Rajski A., 1967: Autecological-zoogeographical analysis of moss mites (Acari, Oribatei) on the basis of fauna in the Poznan environs. Part I. 98 pp. [PPE 37069] [M39] 

 Rajski A., 1970: Autecological-zoogeographical Analysis of Moss Mites (Acari, Oribatei) on the Basis of Fauna in the Poznan Environs. Part III. 97 pp. [M54] Acta zoologica cracoviensia 15/3: 101-249.

 Rajski, 1962: Metody konserowania a preparowania niektórych roztoczy. 8 pp. 

 Rakauskas R., 2015: Orchard aphids (Hemitpera: Sternorrhyncha, Aphidoidea) of Lithuania: a century of research. 13 pp. [M63] Polskie Pismo Entomologiczne 84(4): 311-323.

 Rakhmanov R. R., 1971: Rasprostranenie i ekologija Amblyiulus continentalis (Diplopoda, Julidae) v Lenkoranskom zone Azerbajdzhana. 2 pp. 

 Rákosy L., 1996: Leptidea reali Reissinger 1989 (Lepidoptera: Pieridae) specie noua pentru fauna Romaniei. 8 pp. 

 Rákosy L., 1997: Concluzii generale. 3 pp. 

 Rákosy L., Stan G., 1997: 1. Semnificatia faunei de insecte din ecosinsteme naturale si necesitatea conservarii lor. 8 pp. 

 Rakotoarison A., Köhler J., Glaw F., Vences M., 2013: The advertisement call of the relict frog Tsingymantis antitra from Madagascar (Anura, Mantellidae). 6 pp. Spixiana 36(1): 143-148.

 Rakovič M., 1981: Revision of species of the tribe Psammodiini from the Australian region (Coleoptera: Scarabaeidae: Aphodiinae). I. Key to genera and revision of the genera Aphodopsammobius Endrödi, Psammobius Fallén, Diastictus Mulsant, Phycochus Broun and Tesarius g. n. 37 pp. [B02] [M14] 

 Rakovič M., 1982: A revision of the genus Rhyssemodes Reitter (Scarabaeidae: Aphodiinae). 20 pp. [B02] [B21] [M14] [M71] Annotationes Zoologicae et Botanicae

 Rakovič M., 1983: Revision of species of the tribe Psammodiini from the Australian region (Coleoptera: Scarabaeidae: Aphodiinae). II. Genera Rhyssemus Mulsant and Trichiorhyssemus Clouet. 15 pp. [B02] [B18] [M14] [M59] [M71] Annotationes Zoologicae et Botanicae

 Rakovič M., 1984: Psammodiini of Sudan (Coleptera: Scarabaeidae: Aphodiinae). 20 pp. [B21] [M14] [M71] Annotationes Zoologicae et Botanicae

 Rakovič M., 1986: Complementary notes to my revision of Old World Psammodius Fallén species (Coleoptera: Scarabaeidae: Aphodiinae). 19 pp. [B02] [M14] 

 Rakovič M., 1987: A contribution to the knowledge of Trichiorhyssemus Clouet species from the Oriental region, New Guinea and Pacific Islands (Coleoptera, Scarabaeidae, Aphodiinae). 14 pp. [B21] [M14] [M71] Annotationes Zoologicae et Botanicae 182: 1-14.

 Rakovič M., 1991: A treatise on some new and interesting Aphodius species with a list of species of the subgenus Nialus and related subgenera (Coleoptera, Scarabaeoidea, Aphodiidae). 16 pp. [B02] [B18] [M14] [M71] Annotationes Zoologicae et Botanicae 206: 1-16.

 Rakovič M., 1994: A review of species of the genus Psammodius (Coleoptera: Scarabaeoidea: Aphodiidae) of the Indian subcontinent. 10 pp. [M09]