The taxonomic diversity of the IKIP Sialidae holdings currently consists of a single species. This taxon is listed below and the islands on which it was collected, from south to north, is given in brackets (the islands are designated by two-letter Island Codes). All determinations were made by Dr. Tomiko Ito (see IKIP MEGALOPTERA REPORT).

Genus Nipponosialis
Nipponosialis ezoensis [KU]

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