Abstract
In early 1963 the writers proposed that the structures of the compound eye can be used for the estimation of activities of Lepidopteran adults. In that book, an idea of the use of structures of the eye to estimate moths' activities was presented. However, the detailed meaning and the technique of the eye section were not adequately described. Therefore, in this article a principle of activity estimation and its practical use were explained with the whole groups of moths adding fifty more species. Consequently, two types of activities which exhibit values of 6-8 and 2-4 are newly added to ever known twenty-one types of activities.
