First record of a mermithid nematode emerging from the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae)

Abstract

Juveniles of a nematode belonging to the family Mermithidae were found from wolf spiders, Pardosa pseudoannulata, collected in a paddy field in Kyoto, Japan. Their morphological characteristics are briefly reported along with some ecological notes. This is the first record of a mermithid from P. pseudoannulata.