We report new records of the shining guest ant Formicoxenus nitidulus (Nylander, 1846) from ten sites across Belgium. The species was found in association with Formica rufa Linnaeus, 1761, Formica polyctena Förster, 1850 and Formica pratensis Retzius, 1783 nests across six provinces (Antwerp, Flemish Brabant, Liège, Limburg, Luxembourg, Namur). Records were obtained using selective traps, placed on the margins of host mounds as well as by direct observations on host nests. These observations indicate that F. nitidulus is more widespread in Belgium than previously thought.
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RBINS Staff Publications 2026 OA
