Bajári E., 1957: Hymenoptera: Sphecoidea I. Fauna Hungariae. 117 pp.  Discount 50%!

 Bajári E., 1960: Hymenoptera: Ichneumonoidea 1. Fauna Hungariae. 266 pp.  Discount 50%!

 Balevski N., 1999: Catalogue of the braconid parasitoids (Hymenoptera: Braconidae) isolated from various phytophagous insect hosts in Bulgaria. 126 pp.  Discount 20%!

 Banaszak J., (ed.), 1992: Natural resources of wild bees in Poland. 174 pp.  Discount 20%!

 Banaszak J., Romasenko L. Cierzniak T., 2001: Hymenoptera: Apidae: Megachilinae. Klucze owadów Polski XXIV(68f). 156 pp.  Discount 50%!

 Berland L., 1958: Atlas des Hyménopteres de France Belgique, Suisse. I. Tenthredes, parasites porte-aiguillon (béthylides). 14 planches, 155 pp. 

 Bitsch J., Dollfuss H., Bouček Z., Schmidt K., Schmid-Egger C., Gayubo S. F., Antropov A. V., Barbier Y., 2001: Hyménoptéres Sphecidae d'Europe Occidentale. Volume III. Faune de France 86. 459 pp. 

 Blank S. M., Schmidt S., Taeger A., 2006: Recent sawfly research : Synthesis and prospects. 16 plates, 704 pp. 

 Brian M. V., 1986: Social insects. Ecology and behavioural biology. 398 pp. (in Russian).  Discount 20%!

 Brullé M., F., Laporte de Castelnau M., Blanchard E., 1840: Histoire naturelle des animaux articulés. Annelides: crustacés, arachnides, myriapodes et insectes. Histoire des insectes coléopteres (tomes I by Brullé & Castelnau and II by Castelnau), orthopteres, neuropteres, hémipteres, hyménopteres, lépidopteres et dipteres (tome III by Blanchard) (in French), 1840. Three parts in three half-leather bound books. 8vo. Title-page in part I missing, (I) cxxv+324 pp.; (II) 563 pp.; (III) 672 pp. 128 hand-coloured or tinted engraved plates MISSING. The rare first edition. Contains the descriptions of many new and little known species of Coleoptera, Diptera, and Lepidoptera, etc. Horn-Schenkling quotes four volumes, but volume IV is by Lucas on crustacés etc... Paris, Duménil Discount 30%!

 Byers G. W., Hagen R. H., Brooks R. W. (eds.), 1999: Entomological contributions in memory of Byron A. Alexander. [32 papers mainly on Hymenoptera, also on Coleoptera, Lepidoptera, Orthoptera, Mecoptera, and Acari.] 251 pp. 

 Cassano C., Grasso D., (eds.), 1983: Volume supplementare in onore di Guido Grandi, entomologo. Memorie della societá entomologica Italiana. 178 pp.  Discount 20%!

 Celary W., 2005: Melittidae of Poland (Hymenoptera: Apoidea: Anthophila), their biodiversity and biology. 81 colour photographs, 177 pp. (in English).  Discount 30%!

 Cotti G., 1963: Bibliografia ragionata 1930-1961 del gruppo Formica rufa in italiano, deutsch, english. 413 pp.  Discount 20%!

 Dalla Torre K. W. von, 1902: Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen III: Trigonalidae, Megalyridae, Stephanidae, Ichneumonidae, Agriotypidae, Evaniidae, Pelecinidae. viii + 1141 pp. Cover scratched with free back, text clear in excellent condition, pages well-bound without any free or torn ones.  Discount 20%!

 Dylewska M., 1974: Hymenoptera: Apidae, Andreninae. Klucze owadów Polski XXIV(68d). 80 pp.  Discount 50%!

 Fauna of Saudi Arabia, vol. 10(1989). Zoological survey. Papers on Tubificidae, Arachnida, Isopoda, Ephemeroptera, Coleoptera, Diptera, Hymenoptera, Opisthobranchia, Red Sea fisches, reptiles, gazelles. 454 pp. Fauna of Saudi Arabia 10: 1-454.
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 Fauna of Saudi Arabia, vol. 3(1981). Zoological survey. Papers on Ixodoidea, Aranea, Orthoptera, Embiidina, Psocoptera, Sternorrhyncha, Coleoptera, Lepidoptera, Hymenoptera, birds, primates, mosquitos. 479 pp. Fauna of Saudi Arabia 3: 1-479. Discount 50%!
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 Fauna of Saudi Arabia, vol. 6(1984). Papers on nature conservation, climate, marine ecology, helminth parasites, Tubificidae, Hirudinea, Acarina, Mantodea, Orthoptera, Odonata, Hemiptera, Homoptera, Coleoptera, Lepidoptera, Hymenoptera, parasitic arthropods, skinks, chameleons, birds, bats. 556 pp. Fauna of Saudi Arabia 6: 1-556.
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 Finlayson T., 1975: The cephalic structures and spiracles of final-instar larvae of the subfamily Campopleginae, tribe Campoplegini (Hymenoptera: Ichneumonidae). 137 pp. Memoirs of the Entomological Society of Canada 94: 1-137.

 Giachino P. M., (ed.), 2008: Biodiversity of South America. I. Memoirs on biodiversity, vol. 1. 496 pp.  
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 Gokhman V. E., 2005: Kariotipy parazitsheskikh perepontshatokrylych. 185 pp.  Discount 30%!

 Haeselbarth E., 1973: Die Blacus-Arten Europas und Zentral-Asiens (Hymenoptera, Braconidae). 102 pp. 

 Haragsim O., 1966: Medovnice a včely. 195 pp. 

 Hartig T., 1860: Die Familien der Blattwespen und Holzwespen nebst einer allgemeinen Einleitung zur Naturgeschichte der Hymenopteren. 416 pp. Mit 8 lithographirten Tafeln. Excellent condition, plates with light spots.  Discount 20%!

 Haupt H., 1927: Monographie der Psammocharidae (Pompilidae) Mittel-, Nord- und Osteuropas. 367 pp. 

 Heinrich G. H., 1960: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. II. Synopsis of the Ichneumonini: Genera Orgichneumon, Cratichneumon, Homotherus, Aculichneumon, Spilichneumon. 113 pp. The Canadian Entomologist suppl. 15: 1-113.

 Heinrich G. H., 1960: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. Introduction, key to Nearctic genera of Ichneumoninae stenopneusticae, and synopsis of the Protichneumonini north of Mexico. 83 pp. The Canadian Entomologist suppl. 15: 1-83.

 Heinrich G. H., 1961: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. IV. Synopsis of the Ichneumonini: Genera Chasmias, Neamblymorpha, Anisopygus, Limerodops, Eupalamus, Tricholabus, Pseudamblyteles, Eutanyacra, Ctenichneumon, Exephanes, Ectopimorpha, Pseudoamblyteles. 133 pp. The Canadian Entomologist suppl. 23: 1-133.

 Heinrich G. H., 1961: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. Part III. Synopsis of the Ichneumonini: Genera Ichneumon and Thyrateles. 158 pp. The Canadian Entomologist suppl. 21: 1-158.

 Heinrich G. H., 1961: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. Part V. Synopsis of the Ichneumonini: Genera Protopelmus, Patrocloides, Probolus, Stenichneumon, Aoplus, Limonethe, Hybophorellus, Rubicundiella, Melanichneumon, Stenobarichneumon, Platylabops, Hoplismenus, Hemihoplis, Trogomorpha. 161 pp. The Canadian Entomologist suppl. 26: 1-161.

 Heinrich G. H., 1962: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. Part VI. Synopsis of the Ichneumonini: (Genus Plagiotrypes), Acanthojoppini, Listrodromini and Platylabini. 124 pp. The Canadian Entomologist suppl. 27:1-124.

 Heinrich G. H., 1962: Synopsis of Nearctic Ichneumoninae stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part I. VII. Synopsis of the Trogini: Addenda and Corrigenda. 80 pp. The Canadian Entomologist suppl. 29: 1-80.

 Horstman K., 1980: Revision der europäischen Tersilochinae II (Hymenoptera, Ichneumonidae). 76 pp. Rossem G. van, 1980: A revision of some Western Palaearctic Oxytorine genera (Hymenoptera, Ichneumonidae). 58 pp. Spixiana suppl. 4: 1-76, 77-135.

 Junzhi C., Ming B., Hong W., Liqiang J., 2007: Catalogue of the insect type specimens deposited in China. Vol. 1. 792 pp. (in Chinese, scientific names in Latin).  Discount 30%!

 Kahle W., 1919: Brehms Tierleben. 3. Auflage. 142 Tafeln in Farbendruck, 415 pp. 

 Kazenas V. L., 1984: Rojushtshie osy cercerisy (Sphecidae: Cerceris) Srednej Azii i Kazachstana. 232 pp.  Discount 20%!

 Kieffer J. J., 1911: Descriptions d`hyménoptéres nouveaux. 19 pp. 

 Kieffer J. J., Enslin E., 1914: Die Gallwespen (Cynipiden) Mitteleuropas, insebesondere Deutschlands. Die Blatt- und Holzwespen (Tenthrediniden) Mitteleuropas, insbesondere Deutschlands. In serie: Die Insekten Mitteleuropas insbesondere Deutschlands. Band III. Hymenopteren. 8 kolorierten Tafeln, 213 pp. Free pages, six colour plates lack, cover damaged. info

 Kierych E., 1974: Hymenoptera: Klucze owadów Polski XXIV(22). Ibaliidae. 12 pp.  Discount 30%!

 Kolibáč J., Hudec K., Laštůvka Z., Peňáz M., et al., 2007: Příroda České republiky. Průvodce faunou. 439 pp. Druhé upravené a doplněné vydání.  Discount 20%!

 Krombein K. V., (ed.), 1958: Hymenoptera of America north of Mexico. Synoptic catalogue. 1st supplement. 305 pp.  Discount 20%!

 Kuznetsov V. N., 2005: Kitayskaya voskovaya ptshela Apis cerana cerana F. (Hymenoptera, Apidae) na Dalnem Vostoke Rossii. 111 pp.  Discount 30%!

 Macek J., Roller L., Beneš K., Holý K., Holuša J., 2020: Blanokřídlí České republiky II. – Širopasí. 669 pp.  

 Malaise R., 1945: Tenthredinoidea of South-eastern Asia. 89 pp.  Discount 20%!

 Martin J. C., 1956: A taxonomic revision of the triaspidine braconid wasps (Hymenoptera: Braconidae: Blacinae: Triaspidini) of Nearctic America. 157 pp.  Discount 20%!

 Meyer N. F., 1936: Paraziticheskie pereponchatokrylye sem. Ichneumonidae SSSR i sopredelnykh stran. Vyp. VI. [Tables systématiques des hyménopteres parasites (fam. Ichneumonidae) de l’URSS et des pays limitrophes. Vol. VI.] [Guide to the fauna of the UdSSR 22]. 356 pp. (in Russian).  Discount 50%!

 Mickel C. E., 1928: Biological and taxonomic investigations on the mutillid wasps. 4 plates, 351 pp.  Discount 20%!

 Miller C. D. F., 1961: Taxonomy and distribution of Nearctic Vespula. 50 pp. The Canadian Entomologist suppl. 22: 1-50.

 Miller C. D. F., 1970: The Nearctic species of Pnigalio and Sympiesis (Hymenoptera: Eulophidae). 121 pp. Memoirs of the Entomological Society of Canada 68: 1-121.