Parasitoids on Oulema (lema) lichenis Voet, 1826 [in cereal crops]
2005
Gallo, J.(Slovenska polnohospodarska univ. v Nitre (Slovak Republic))
In this work the occurrence of parasitoids parasiting Oulema lichenis Linnaeus, 1758 was investigated in the region of Western Slovakia during the years 1999-2003. In this area we have found that cocoons (larvae) of Oulema lichenis are parasited by the following species: Necremnus leucarthros, Pteromalus vibulens, Gelis instabilis, Lemophagus curtus, Itoplectis maculator, Diplazon laetatorius, Bathythrix maculatus, Tetrastichus julis. The major portion of parasitation was showed mainly by Necremnus leucarthros Nees, 1834. Within the total number of parasitoids, Necremnus leucarthros represented 71.5% and amouted sexual index of 0.65. Another important parasitoid was Pteromalus vibulens (Walker, 1839) which reached presence of 13.7% and sexual index of 0.65.
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