Immature stages of Neptis reducta Fruhstorfer, 1908 (Lepidoptera, Nymphalidae, Neptini): morphology, ecology and food specialty.

Neptis reducta Fruhsorfer, 1908 is currently recognized as a nymphalid butterfly found only in Taiwan and Thailand, with previously recorded larval hostplant and immature biology involving mis-identifications. The present study recognizes Aphananthe aspera (Cannabaceae) as the sole larval hostplant for N. reducta, and the nymphalid butterfly is the first known lepidopterous insect specialized on Aphananthe.