Linnaeus, 1758, the most important pest of Norway spruce ( Linnaeus, 1753) from Eurasia has damaged, in the last decades, a large area of forest in Romania. Associations between beetles and their symbiotic fungi are well known compared to beetle-mite relationships. The objectives of the study are to determine: (i) the diversity of mites species associated with in a local outbreak from Central Romania; (ii) the mite's preferences concerning the body parts of their carriers; and (iii) how phoresy changes during seasonal flight activity of the host. A total of 7896 adult were analyzed and six mite species (both adults and immature stages) were found: Berlese,1920, Samsinak, 1960, Vitzthum, 1923, Scheucher, 1957, Vitzthum, 1923, and Vitzthum, 1926. Most mites were observed under the carriers' elytra (46.8%), while 26.7% and 25.8% were seen on the thorax and elytral declivities, respectively. Mite phoresy peaked in the spring corresponding to the dispersal flight of the carrier. A smaller peak in phoresy occurred in the summer during the second beetle generation.
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| http://dx.doi.org/10.3390/insects11110771 | DOI Listing |
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