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Neotropical species of Psen and Pseneo (Hymenoptera, Sphecidae, Psenini)
Vol 118, Page 1, Date 1975
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Studies on African Heteroptera
Vol 118, Page 43, Date 1975
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The growth of larvae of Tipula oleracea Linnaeus, 1758 (Diptera, Tipulidae)
Vol 118, Page 67, Date 1975
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The phenology and habitat of the species of the subgenus Tipula Linnaeus in the Netherlands (Diptera, Tipulidae)
Vol 118, Page 83, Date 1975
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Key to the European species of Brachycaudus, subgenus Acaudus (Homoptera, Aphidoidea), with redescriptions and a note on B. persicae
Vol 118, Page 99, Date 1975
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Studies on the acridoid genera Opiptacris Walker and Bumacris Willemse (Orthoptera, Acridoidea)
Vol 118, Page 117, Date 1975
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A revision of the tribus Blacini (Hymenoptera, Braconidae, Helconinae)
Vol 118, Page 159, Date 1976