Six unknown hitchhiking moths intercepted at the Korean port of entry were detected from an international vessel by the personnels of the International Plant-Quarantine Accreditation Board (IPAB) in 2012. Among them, there was a noctuid moth, Noctua pronuba (Linnaeus), which is a quarantine pest in Korea. Other five species are three erebids (Lophocampa maculata Harris, Lemyrarhodo philodes (Hampson), and Trigonodes cephise (Cramer)), one sphingid (Hippotion rosetta Swinhoe), and one zygaenid (Histia flabellicornis nigrinus Jordan). They are mostly distributed in the subtropical regions. In addition to these hitchhiking moths from the vessel, other interception records from inanimate pathways are provided here on the bases of Pest Information System, Animal and Plant Quarantine Agency (QIA). Thus, it is necessary to monitor inanimate pathways and to adopt comprehensive border surveillance system, in order to protect further invasions of alien insect species.