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Pushing the limits – two new species of Pteromalus (Hymenoptera, Chalcidoidea, Pteromalidae) from Central Europe with remarkable morphology

Two new species, Pteromalus briani sp. n. and P. janstai sp. n., with unusual characters are described from the Central Plateau and the Alps in Switzerland, respectively. P. briani sp. n. is remarkable in that it has the metatibia quite abruptly expanded before the middle. This type of modification of the hind tibia is unique within the Pteromalidae and probably also the entire Chalcidoidea. It is also very rare in other parasitic wasps, where it is suspected to be associated with pheromone glands. The species is a gregarious endoparasitoid of pupae of Vanessa atalanta (Linnaeus) and Aglais urticae (Linnaeus), two common butterflies (Lepidoptera: Nymphalidae) in Europe. It is furthermore a koinobiont parasitoid ovipositing in an early larval stage of the host. The other species, P. janstai sp. n., shows a flattened mesosoma. A dorsoventrally depressed body is a unique feature within the genus Pteromalus, but known from a number species in unrelated genera and subfamilies. The two records demonstrate that it is possible to discover entirely new species with extraordinary characters even in one of the taxonomically most thoroughly explored parts of the world.

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Hannes Baur (2015). Pushing the limits – two new species of Pteromalus (Hymenoptera, Chalcidoidea, Pteromalidae) from Central Europe with remarkable morphology [Data set]. Natural History Museum. https://doi.org/10.5519/0056966
Retrieved: 15:11 04 Jun 2025 (UTC) BibTeX

Dodatne informacije

Polje Vrednost
Affiliation 1. Department of Invertebrates, Natural History Museum Bern, Bernastrasse 15, 3005 Bern, Switzerland, E-mail: hannes.baur@nmbe.ch 2. Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
Primary contributors
Baur, Hannes
Other contributors
Nazadnje posodobljeno 08. april 2019
Last resource update 08. april 2019 (Baur Pteromalus briani janstai qualitative character matrix)
Ustvarjeno 03. julij 2015
Licenca CC-BY-SA-4.0