Raatikainen M., 1962: Hymenoptera species occurring in stems of spring wheat and the damage caused by them to wheat crops in Finland. 9 pp. 

 Rabasse J. M., 1982: Remarques sur l’identification des Aphidius (Hym., Aphidiidae) parasites des pucerons des céréales. 2 pp. 

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

 Rabb R. L., 1960: Bilogical studies of polistes in North Carolina (Hymenoptera: Vespidae). 12 pp. 

 Rabes I., 1936: Untersuchungen über die weiblichen Geschlechtsorgane von Apanteles, mit besonderer Berücksichtigung der accessorischen Kerne. 41 pp. 

 Rack G., 1980: Eine neue Milbe (Acarina, Pygmephoridae) von Priocnemis apogonus (Hymenoptera, Pompilidae) aus Chile. 4 pp. 

 Radchenko A. G., 1985: On the biology of the ant Tapinoma kinburni Kar. (Hymenoptera, Formicidae). 6 pp. (in Russian). 

 Radchenko A. G., 1993: Ants from Vietnam on collection of the Institute of Zoology, PS, Warsaw. I. Pseudomyrmicinae, Doryllinae, Ponerinae. 8 pp. 

 Radchenko A. G., 1997: Cataglyphis zakharovi sp. n. – second socially parasitic species in the genus Cataglyphis Foerster (Hymenoptera, Formicidae). 4 pp. 

 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. 

 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. 

 Radchenko A. G., Elmes G. W., 2001: A taxonomic revision of the ant genus Myrmica Latreille, 1804 from the Himalaya (Hymenoptera, Formicidae). 40 pp. Entomologica Basiliensia 23: 237-276.

 Radchenko A. G., Elmes G. W., 2001: First record of the genus Myrmica (Hymenoptera: Formicidae) from Northern Vietnam, with a description of two new species. 5 pp. 

 Radchenko A. G., Elmes G. W., 2001: First record of the genus Myrmica (Hymenoptera: Formicidae) from Northern Vietnam, with a description of two new species. 5 pp. [HYM 3182] Annales zoologici 51(2): 221-225.

 Radchenko A. G., Zhou S., Elmes G. W., 2001: New and rare Myrmica species (Hymenoptera: Formicidae) from Southern China. 9 pp. 

 Radchenko A. G., Zhou S., Elmes G. W., 2001: New and rare Myrmica species (Hymenoptera: Formicidae) from Southern China. 9 pp. [HYM 3183] Annales zoologici 51(2): 211-219.

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

 Radchenko A., Czechowska W., Czechowski W., Siedlar E., 1999: Four species of the ant genus Lasius F. new to Poland, with additions to the records for previously recorded species (Hymenoptera, Formicidae). 7 pp. 

 Radchenko A., Czechowska W., Czechowski W., Siedlar E., 1999: Lasius niger (L.) and Lasius platythorax Seifert (Hymenoptera, Formicidae) – a revolution in Polish myrmecological faunistics and zoocoenology? 11 pp. 

 Radchenko A., Czechowska, Czechowski W., 2004: Hymenoptera: Formicidae. Klucze owadów Polski XXIV(63). 138 pp. 

 Radchenko A., Czechowski W., Czechowska W., 1999: The tribe Formicoxenini (Hymenoptera, Formicidae) in Poland – a taxonomic review and keys for identification. 22 pp. 

 Radchenko A., Elmes G. W., 2003: A taxonomic revision of the socially parasitic Myrmica ants (Hymenoptera: Formicidae) of the Palaearctic Region. 27 pp. [52873] Annales zoologici 53(2): 217-243.

 Radchenko A., Elmes G. W., 2009: Important alterations in the taxonomy of the ant genus Myrmica, based on the investigation of the M. Ruzsky’s type specimens, preserved in the Museo Civico di Storia Naturale “Giacomo Doria” in Genoa (Hymenoptera, Formicidae). 25 pp. (in English). Annali del Museo Civico di Storia Naturale di ‘Giacomo Doria’ 100: 501-525.

 Radchenko V. G., 1981: Nesting of bees of four species of the genus Andrena F. (Hymenoptera, Andrenidae). 9 pp. (in Russian). 

 Radchenko V. G., 1987: Nesting of the bee Dasypoda braccata Eversm. (Hymenoptera, Melittidae) in the south-western Ukraine. 3 pp. (in Russian). 

 Radloff S. E., Hepburn H. R., 1997: Multivariate analysis of honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae), of the Horn of Africa. 8 pp. 

 Radloff S. E., Hepburn H. R., 1999: Honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae), of equatorial Africa. 5 pp. 

 Radloff S. E., Hepburn H. R., 1999: Honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae), of the Drakensberg Mountains in relation to neighbouring populations. 7 pp. 

 Radloff S. E., Hepburn H. R., 2001: Population structure of Apis mellifera scutellata (Hymenoptera: Apidae): filling the Uganda gap. 4 pp. 

 Radloff S. E., Hepburn H. R., Fuchs S., 1998: Ecological and morphological differentiation of the honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae), of West Africa. 7 pp. 

 Radloff S. E., Hepburn H. R., Robertson M. P., Hille R. van, Davidson Z., Villet M. H., 1996: Discriminant analysis of the honeybee populations of southweestern Africa. 6 pp. 

 Radloff S. E., Hepburn H. R., Villet M. H., 1997: The honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae), of woodland savanna of southeastern Africa. 9 pp. 

 Radoszkovsky O., 1872: Hyménopteres de l’Asie. Description et énumération de quelques especes recues de Samarkand, Astrabad, Himalaya et Ning-Po, en Chine. 15 pp. 

 Radoszkowski C., 1866: Enumération des espéces de Chrysides de Russie. 10 pp. 

 Radovič I. T., 1985: Morphology and adaptive value of the sting apparatus of digger wasps (Hym., Sphecidae). 14 pp. 

 Radtshenko A. G., Arakelyan G. R., 1991: Novye vidy muravev (Hymenoptera, Formicidae) iz Armenii. 4 pp. 

 Raghi-Atri F., 1980: Über das Vorkommen von Scambus detrita Holmgr. als Parasit von Lipara similis Schin. in Berlin (Hym. Ichneumonidae). 5 pp. 

 Rahgi-Atri F., 1980: Über das Vorkommen von Scambus detrita Holmgr. Als Parasit von Lipara similes Schin. in Berlin (Hym. Ichneumonidae). 3 pp. (in German). Deutsche Entomologische Zeitschrift (N.F.) 27(4/5): 185-187.

 Raignier A., Boven J. van, 1949: La Premiére Colonie Belgie de la Fourmi Amazone (Polyegrgus rufescens Latreille) et description de Trios Ergatandromorphes Nouveaux de cette Espéce, (Hymenoptera, Formicidae). 11 pp. 

 Rakhshani E., Talebi A., Stary P., Manzari S., Rezwani A., 2005: Re-description and biocontrol information of Pauesia antennata (Mukerji) (Hym., Braconidae, Aphidiinae), parasitoid of Pterochloroides persicae (Chol.) (Hom., Aphidoidea, Lachnidae). 11 pp. [HYM 7307] Journal of the Entomological Research Society 7(3): 59-69.

 Randuška P., 1993: Hniezdenie Sceliphron destillatorium Illig. 4 pp. 

 Rao B. R. S., 1965: A key to species of Anicetus Howard, 1896 (Hymenoptera: Encyrtidae) and descriptions of new species from India. 6 pp. 

 Rao B. R. S., 1974: Redescriptions of Plutarchia Girault and Axanthosoma Girault with the description of a new species of Plutarchia from Nigeria (Eurytomidae: Hymenoptera). 8 pp. 

 Rao Subba B. R., Rai P. S., 1970: Studies on the Indian species of the genus Anagyrus Howard, 1896 (Hymenoptera: Encyrtidae). 12 pp. 

 Rasmont P., 1981: Redescription d’une espece meconnue de Bourdon d’Europe: Bombus lucocryptarum Ball, 1914 n. status (Hymenoptera, Apidae, Bombinae). 6 pp. 

 Rasmont P., Quaranta M., 1997: I Bombi dell’Arcipelago Toscano (Hymenoptera Apidae). 8 pp. 

 Rasnitsyn A. P., 1959: Zimovki naezdnikov sem. Ichneumonidae (Hymenoptera). 7 pp. 

 Rasnitsyn A. P., 1964: O zimovkach naezdnikov sem. Ichneumonidae (Hymenoptera). 6 pp. 

 Rasnitsyn A. P., 1965: K poznaniju biologii, sistemy i filogeneza pililščikov podsemejstva Xyelinae (Hymenoptera, Xyelidae). 37 pp. 

 Rasnitsyn A. P., 1969: Proischozhdenie i evolyuciya nizshich pereponchatokrylych. 8 tablic, 184 pp.