http://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/article Ecologies volume: 6 application/pdf 3695431 bytes Mladenović, Katarina Stojnić, Bojan Vidović, Biljana Furtula, Danilo Jović, Djordje Keywords: oxalis spider mites; Petrobiini; Oxalis corniculata; Oxalis articulata Abstract: The species Petrobia (Tetranychina) harti (Ewing, 1909) is reported for the first time in Serbia, also representing the first record of the tribe Petrobiini Reck, 1952 in the country. Including this finding, the number of spider mite species recorded in Serbia now totals 45. This spider mite species was found exclusively on wood-sorrel plants, Oxalis corniculata L. and O. articulata Savigny., at several localities in the cities of Belgrade and Zrenjanin. The samples were collected during the growing season of 2018 and 2023. Identification of the oxalis mite was based on morphological characteristics. To date, the occurrence of P. (T.) harti on other host plants has not been confirmed anywhere in Serbia. On the observed wood-sorrel plants, P. (T.) harti was recorded in cohabitation only with Tetranychus urticae Koch, 1836. MDPI https://unilib.phaidrabg.rs/o:8810 doi:10.3390/ecologies6040077 ISSN: 2673‑4133 2025 First Record of Petrobia (Tetranychina) harti (Ewing, 1909) (Acari: Tetranychidae) in Serbia, with Additional Remarks eng