First record of the parasitoid Idris flavicornis (Hymenoptera: Scelionidae) from eggs of the wolf spider Pardosa agrestis (Araneae: Lycosidae)

Rádai, Zoltán and Popovici, Ovidiu and Vas, Zoltán and Fusu, Lucian (2018) First record of the parasitoid Idris flavicornis (Hymenoptera: Scelionidae) from eggs of the wolf spider Pardosa agrestis (Araneae: Lycosidae). FOLIA ENTOMOLOGICA HUNGARICA, 79. pp. 101-106. ISSN 0373-9465 (print); 2786-2798 (online)

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Abstract

The egg-parasitoid wasp species Idris flavicornis Förster, 1856 has been recorded from several countries of Europe. It parasitizes eggs of lycosid spiders, mainly those belonging to the genus Pardosa. The first published record of Idris flavicornis is reported from Hungary. Wasps emerged from cocoons of Pardosa agrestis (Westring, 1861), collected during both the early and late generation adult peaks of the spider species. Pardosa agrestis represents a new host species previously unknown for Idris flavicornis, parasitizing both adult generations throughout the yearly phenology, with comparable prevalence. In both adult generations a prominent female bias was observed in the sex ratio of the emerging wasps. With 2 figures.

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