Latest Articles from Journal of Hymenoptera Research Latest 2 Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Thu, 28 Mar 2024 15:26:42 +0200 Pensoft FeedCreator https://jhr.pensoft.net/i/logo.jpg Latest Articles from Journal of Hymenoptera Research https://jhr.pensoft.net/ Courtship behaviour in the genus Nomada – antennal grabbing and possible transfer of male secretions https://jhr.pensoft.net/article/24947/ Journal of Hymenoptera Research 65: 47-59

DOI: 10.3897/jhr.65.24947

Authors: Matthias Schindler, Michaela M. Hofmann, Dieter Wittmann, Susanne S. Renner

Abstract: Due to low population densities, copulation in the cuckoo bee genus Nomada has not previously been observed, although a seminal paper by Tengö and Bergström (1977) on the chemomimesis between these parasitic bees and their Andrena or Melitta hosts postulated that secretions from male glands might be sprayed onto females during copulation. Our observations on the initiation and insertion phase of copulation in three species of Nomada now indicate antennal grabbing as a mechanism by which chemicals are transferred between the sexes. Histological studies of the antennae of N. fucata and N. lathburiana reveal antennal modifications associated with cell aggregations that represent glandular cells, and SEM studies revealed numerous excretory canals.

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Research Article Mon, 27 Aug 2018 07:55:02 +0300
The hosts of Ophion luteus (Linnaeus) (Hymenoptera, Ichneumonidae, Ophioninae) in Europe https://jhr.pensoft.net/article/5347/ Journal of Hymenoptera Research 46: 115-125

DOI: 10.3897/JHR.46.5347

Authors: Gavin Broad, Heinz Schnee, Mark Shaw

Abstract: A widespread European nocturnal ichneumonid, Ophion luteus, is shown to be a parasitoid of at least two species of noctuid moth, Agrotis exclamationis and A. segetum, probably most frequently a parasitoid of the former. The taxonomy, nomenclature and diagnostic features of this species are discussed. Possible explanations for a spring-flying generation, usually referred to as the ‘distans’ morph, are discussed.

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Research Article Mon, 30 Nov 2015 16:19:28 +0200