Checklists of Trichoptera in Japan. 4. Goeridae, Uenoidae, and Limnephilidae

Abstract

This fourth in a series of checklists of Japanese Trichoptera deals with 11 species (3 genera) of Goeridae, 4 species (2 genera) of Uenoidae, and 45 species (15 genera) of Limnephilidae. In Goeridae, we suggest four taxonomic problems: (1) the specific status of Goera gyotokui Kobayashi should be confirmed; (2) four unnamed "species" of larvae separated with or without only tentative alphabetic designations of Goera are not identifiable to species; (3) generic identification of Silo nigricellus Matsumura is doubtful; (4) some undescribed species are in the collections of the authors. In Uenoidae, two taxonomic problems remain: (1) the specific status of Neophylax muinensis Kobayashi should be confirmed; (2) the larvae of 2 "species" of Neophylax separated with only tentative alphabetic designations are not identifiable to species. In Limnephilidae, we transfer 2 species, Stenophylax koizumii Iwata and Stenophylax dentilus Kobayashi, to the genera Hydatophylax and Pseudostenophylax, respectively. Two other species, Metanoea iijimae and Stenophylax kitagamii, are also transferred to the genus Apatania, a member of the family Apataniidae. However, seven taxonomic problems are still not solved: (1) the description of Nothopsyche yokouchii (Iwata) was based only on the larval stage and is insufficient for specific identification; (2) it is necessary to make a careful comparison between Asynarchus amurensis (Ulmer) and Asynarchus sachalinensis Martynov; (3) the specific status of Hydatophylax koizumii (Iwata) and Nemotaulius miyakei (Nakahara) should be clarified; (4) although 3 "species" of Grammotaulius were recorded from Japan, we have not found any Japanese material belonging to this genus; (5) 1 "species" of Asynarchus and 2 "species" of Limnephilus separated with only tentative alphabetic designations are not identifiable to species; (6) the positive association of adult and larval stages of Pseudostenophylax ondakensis (Iwata) is necessary to settle the specific status of Japanese species; (7) the generic identification of Drusus imanishii Iwata is doubtful.