A second locality of Camponotus (Colobopsis) truncatus (Spinola), a Mediterranean dendrobiotic ant species rare in Central Europe is reported from Poland. Single workers were collected from trunks of old oaks (Quercus robur L.) in the Rogalin Oak Wood within the Rogahn Landscape Park (Wielkopolsko-Kujawska Lowland, Western Poland). At the same time, besides C. truncatus, one more rare ant species, Temnothorax corticalis (Schenck), is reported from the Wielkopolsko-Kujawska Lowland for the first time. A key to workers of the Polish species of the genus Camponotus Mayr is given.