A new article has just been released

Lenoir, A., J.-L. Mercier, E. Perdereau, L. Berville & C. Galkowski (2022). Sur l’expansion des fourmis envahissantes du genre Tapinoma en France (Hymenoptera : Formicidae). Osmia, 11: 1–10. https://doi.org/10.47446/OSMIA11.1

On the expansion of Tapinoma invasive ants in France (Hymenoptera: Formicidae). - The invasive ant Tapinoma magnum has been reported in various places in southwestern France (LENOIR & GALKOWSKI, 2017). This ant seems to spread rapidly in this region from Toulouse to Lyon region, as well as in the Loire Valley and Brittany. It is a big problem for example in Saumur where people cannot access their lawns. Two other species, T. ibericum and T. darioi, are reported from other places up North but do not present a threat currently. The tropical ghost ant T. melanocephalum is also signaled in some places in houses or flats whereas it was only localized in tropical greenhouses.