Hansson C., 1983: Taxonomic notes on the genus Achrysocharoides Girault, 1913 (Hymenoptera: Eulophidae), with a redescription and description of a new species. 11 pp. 

 Hansson C., 1985: The entedontine genera Achrysocharoides Girault, Chrysocharis Förster and Kratoysma Bouček (Hymenoptera: Eulophidae) in the Oriental region. 10 pp. 

 Hansson C., 1986: A revision of the nearctic of the genus Zaommomyia Ashmead (Hymenoptera, Eulophidae). 9 pp. Proc. Entomol. Soc. Wash. 88(2): 244-252.

 Hansson C., 1988: A revision of the genus Mestocharis and a review of the genus Grahamia (Hymenoptera, Eulophidae). 9 pp. Proc. Entomol. Soc. Wash. 90(1): 28-36.

 Hara H., 2011: A new slug sawfly, Caliroa nara sp. nov. (Hymenoptera, Tenthredinidae), infesting oak trees, with taxonomic notes on C. angustata and C. annulipes. 15 pp. (in English). Japanese Journal of systematic Entomology (N.S.) 17(2): 369-383.

 Hara H., 2012: Heterarthrus fasciatus (Hymenoptera, Tenthredinidae), a leaf-mining sawfly of Populus spp. in Northeast Asia. 10 pp. Japanese Journal of Systematic Entomology 18(2): 405-414.

 Hara H., 2014: A pine sawfly, Microdiprion hakusanus, infestig Pinus spp. in Japan (Hymenoptera: Diprionidae). 10 pp. Japanese Journal of Systematic Entomology 20(2): 225-234.

 Hara H., 2016: Larva of Megabeleses crassitarsis (Hymenoptera: Tenthredinidae) infesting Magnolia. 5 pp. Japanese Journal of Systematic Entomology 22(2): 149-153.

 Hara H., Ibuki S., Naito T., 2015: Larva and life history of Beleses satonis (Hymenoptera, Tenthredinidae) infesting hardy kiwi. 4 pp. Japanese Journal of Systematic Entomology 21(2): 287-290.

 Hara H., Kojima H., Shinohara A., 2007: Arge solowiyofka (Hymenoptera, Argidae) feeding on Betula ermanii, newly recorded from Japan. 5 pp. Japanese Journal of systematic Entomology (N.S.) 13(1): 85-89.

 Hara H., Shinohara A., 2014: A Palaearctic betulafeeding sawfly, Arge dimidiata (Hymenoptera: Argidae), found in Japan. 10 pp. Japanese Journal of Systematic Entomology 20(2): 291-300.

 Hara H., Shinohara S., 2000: A systematic study on the sawfly genus Cimbex of east Asia (Hymenoptera, Cymbicidae). 26 pp. Japanese Journal of systematic Entomology (N.S.) 6(2): 199-224.

 Hara H., Togashi I., 1998: The larva and cocoon of Conaspidia murotai (Hymenoptera, Tenhredinidae), with notes on its biology. 6 pp. Japanese Journal of systematic Entomology (N.S.) 4(1): 25-30.

 Harada Y., 2005: Diel and seasonal patterns of foraging activity in the arboreal ant Crematogaster matsumurai Forel. 6 pp. Entomological Science 8(2): 167-172.

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

 Haragsim O., Pospíšil J., 1969: Photopositive response of field-bees and drones in apis Mellifera L. to monochromatic lights. 8 pp. Acta entomologica Bohemoslovaca 66: 1-8.

 Harbo J. R., 1988: Effect of comb size on population growth of honey bee (Hymenoptera: Apidae) colonies. 5 pp. 

 Hard J. S., 1976: Estimation of hemlock sawfly (Hymenoptera: Diprionidae) fecundity. 6 pp. 

 Hard J. S., 1976: Natural control of hemlock sawfly, Neodiprion tsugae (Hymenoptera: Diprionidae), populations in Southeast Alaska. 14 pp. 

 Harding P. T., 1979: Provisional atlas of the Insects of the British Isles. Part 9 Hymenoptera: Vespidae. 16 pp. 

 Hardy-Smith J., 1971: Observations on an occurrence of Ancistrocerus gazella (Panzer) (Hymenoptera) in South West England. 2 pp. 

 Haris A., 1993: Taxonomic notes on Pachynematus clitellatus Lepeletier and some related species (Hymenoptera: Symphyta). 4 pp. [HYM 1496] Folia Entomologica Hungarica (S.N.) 54: 57-60.

 Haris A., 1997: New Dolerus species from Samarkand (Hymenoptera: Tenthredinidae). 3 pp. [HYM 1497] Folia Entomologica Hungarica (S.N.) 58: 59-61.

 Haris A., 1998: Two new Dolerus species (Hymenoptera: Tenthredinidae). 4 pp. [HYM1498] Folia Entomologica Hungarica (S.N.) 59: 131-134.

 Haris A., 2001: Six new Dolerus Panzer, 1801 species from Japan, Turkey and the United States (Hymenoptera: Tenthredinidae). 11 pp. Folia Entomologica Hungarica (S.N.) 62: 83-93.

 Haris A., 2001: The history of the Symphyta fauna of the Carpathian Basin (Hymenoptera) – Part IV. 6 pp. Folia Entomologica Hungarica (S.N.) 62: 77-82.

 Haris A., 2002: Sawflies from the Indomalay Islands (Hymenoptera: Tenthredinidae). 17 pp. (in English). Folia Entomologica Hungarica (S.N.) 63: 87-103.

 Haris A., 2002: Symphyta (Hymenoptera) from Mongolia. IV. 21 pp. (in English). Folia Entomologica Hungarica (S.N.) 63: 65-85.

 Haris A., 2008: Sawflies (Hymenoptera: Symphyta: Tenthredinidae) from Vietnam and China. 16 pp. Zoologische Mededelingen 82: 281-296.

 Haris A., Roller L., 1998: Three new Tenthredo species from Yunan (Hymenoptera: Tenthredinidae). 6 pp. [HYM 1499] Folia Entomologica Hungarica (S.N.) 59: 135-140.

 Haris A., Roller L., 1999: Four new sawfly species from Yunan (Hymenoptera: Tenthredinidae). 7 pp. [HYM 1500] Folia Entomologica Hungarica (S.N.) 60: 231-237.

 Haris A., Zsolnai B., 2007: New Nematinae species (Hymenoptera: Symphyta, Tenthredinidae) from Japan and Korea. 11 pp. Zoologische Mededelingen Leiden 81: 137-147.

 Harkness R. D., 1977: The carrying of ants (Cataglyphis bicolor Fab.) by others of the same nest. 12 pp. 

 Harkness R. D., Ismay J. W., 1975: A new species of Trachysiphonella (Dipt., Chloropidae) from Greece, associated with an ant Cataglyphis bicolor (F.) (Hym., Formicidae). 5 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 50%!

 Hartmann M., 1992: Zur Ameisenfauna (Hymenoptera, Formicidae) des NSG Apfelstädter Ried / Lkr. Erfurt (Thüringen). 3 pp. [HYM 5922] Veröffentlichungen Naturkundemuseum Erfurt 11: 86-88.

 Hartog J. C. den, Bruggen A. C. van, Cornelius P. F. S., Ofwegen L. P. van, (eds.), 1998: Commemorative volume for the 80th birthday of Willem Vervoort in 1997. 448 pp. Zoologische Verhandelingen.

 Harttig G., 1929: Sphecophaga vesparum Rtzb. In einem Neste von Vespa germanica F. 1 pp. 

 Harttig G., 1931: Beitrag zur Kenntnis der Gattungen Pemphredon Latr. und Cemonus Jur. (Hym.). 4 pp. 

 Harttig G., 1931: Zur Kenntnis der deutschen Psenulus-Arten. (Hym.). 8 pp. 

 Harttig G., 1932: Das bislang noch unbekannte Weibchen von Crossocerus imitans Kohl. (Hym. Spheg.). 2 pp. 

 Harttig G., 1932: Eine neue palaearktische Symmorphus-Art (Hym. Vesp.) 3 pp. 

 Harttig G., 1932: Was ist Pompilus alienus Fisch.-Waldh. (Hym.). 1 pp. 

 Harttig G., 1932: Zur Biologie von Psenulus rubicola Httg. (atratus Panz.). 2 pp. 

 Harttig G., 1938: Zur Unterscheidung der Grabwespen-Arten Crosocerus elongatulus v. d. Lind. Und C. Distinguendus A. Mor. (Hym. Spheg.). 2 pp. 

 Harvey J. A., Strand M. R., 2003: Sexual size and development time dimorphism in a parasitoid wasp: an exception to the rule 8 pp. European Journal of Entomology 100(4): 485-492.

 Hase A., 1919: Beiträge zur morphologischen und biologischen Kenntnis der Shlupfwespe Lariophagus distinguendus (Foerst.) Kurdj. 31 pp. 

 Hase A., 1920: Über den Putzvorgang bei der Schlupfwespe Lariophagus distinguendus (Foerst.). 19 pp. 

 Hase A., 1923: Weitere Beiträge zur Frage der biologischen Bekämpfung von Schadinsekten, insbesondere über die Bekämpfung der Mehlmotten mit Hilfe von Schlupfwespen. 28 pp. 

 Hase A., 1928: Durch Quarzlichtbestrahlung erwungene Pigmentveränderungen bei Insekten (Schlupfwespen). 9 pp.