Identification of Japanese Lymantria Species (Lepidoptera: Lymantriidae) Based on Morphological Characteristics of Adults

摘要

The morphological characteristics of adult male and female moths of seven Japanese Lymantria species which consisted of four Asian gypsy moth (AGM) species L. dispar japonica (Motschulsky), L. umbrosa (Butler), L. albescens Hori and Umeno, and L. postalba Inoue] and three other species [L. xylina Swinhoe, L. mathura Moore, and L. monacha (Linnaeus)] were shown for species identification. We showed ground color and markings of wings and morphological characteristics of genitalia. These seven Lymantria species could be discriminated among species by the above mentioned morphological characteristics except a combination of Hokkaido populations of L. dispar japonica and L. umbrosa. This result suggests that morphological characteristics of adult male and female moths are useful in identifying these seven Japanese Lymantria species.