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.

Data and Resources

Cite this as

Hannes Baur (2015). Dataset: Pushing the limits – two new species of Pteromalus (Hymenoptera, Chalcidoidea, Pteromalidae) from Central Europe with remarkable morphology. http://dx.doi.org/10.5519/0056966

Retrieved: 15:42 27 Apr 2017 (GMT)

Additional Info

Field Value
Author(s) Hannes Baur
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
Contributors Natalie Dale-Skey Papilloud (Natural History Museum, London) and Christer Hansson (Biological Museum (Entomology), Lund University, Lund, Sweden)
Dataset category Research
Last updated July 27, 2015
Created July 3, 2015
License Creative Commons Attribution Share-Alike 4.0