The genus Pseudostenophylax Martynov (Trichoptera, Limnephilidae) in Japan.

I revise the Japanese species of the genus Pseudostenophylax Martynov (Trichoptera, Limnephilidae), and recognize 8 species including five new species, P. tohokuensis, P. kuharai, P. itoae, P. tanidai and P. befui, and three previously described species, P tochigiensis Schmid, P ondakensis (Iwata) and P. dentilus (Kobayashi). Pseudostenophylax takaoensis Schmid is synonymized with P. ondakenis. Adults and larvae of all species are described or redescribed except for the larval stage of P befui sp. nov.