is a free-living, pseudoparasitic, necromenic, and parasitic nematode, depending on the host. This species feeds mainly on bacteria present in decaying organic matter, soil, and other substrates; however, in its parasitic form, it can colonize some species of snails. Moreover, the presence of has also been detected in birds and mammals, including humans. In 2021–2023, during monitoring of the palm borer in Central Italy, emerged from dead larvae of this alien invasive moth and was extracted from palm fibres of in three independent sites. The nematode was identified by morphological and morphometric analyses. Molecular analyses using SSU and LSU gene fragments were used to confirm the identification and to perform Bayesian reconstruction of the phylogeny. Each sampling site showed a unique haplotype. Concerning the pathogenicity of this nematode against insects, the test performed on larvae did not show any entomopathogenic effect. This is the first time that was found associated with and this recurrent association was discussed.