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  • Author or Editor: V. Kerezsi x
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The first Hungarian record of the family Penthaleidae, the occurrence of blue oat mite [Penthaleus cf. major (Dugès, 1837)] in Hungary is presented. This pest mite species was collected on lettuce in greenhouse. Notes to the morphology and the three (cox 1, 18sRNA, ITS2) sequences of the Hungarian specimens are given.

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The hypopi of the species Sancassania chelone Oudemans, 1916 were collected from four pest beetle species, namely Melolontha melolontha (Linnaeus, 1758); Melolontha hippocastani Fabricius, 1801; Holochelus aequinoctialis (Herbst, 1790) and Tropinota hirta Poda, 1761. The infestation rate was the highest in H. aequinoctialis (80%), while it was 50%, 28% and 13% in M. hippocastani, M. melolontha and T. hirta, respectively. The majority of the mites were found on wings in case of the two Melolontha species, in contrary, the mites were present on the abdomen of the H. aequinoctialis and T. hirta. Melolontha hippocastani Fabricius, 1801; Holochelus aequinoctialis (Herbst, 1790) and Tropinota hirta (Poda, 1761) are new host species of S. chelone.

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