Abstract
To conserve the environment of Yato ( small valley with flat bottomland) in urban area, it is essential to clarify the habitat of each species. The purpose of this study is to clarify the relation between habitat of Pyrocoelia fumosa and environmental condition. The seasonal change and spatial distribution were revealed based on the population of luminous larvae at night, and relation between the population of larvae and environmental condition was analyzed by using GLM. As a result, it was shown that considering change of the population of larvae surveying many times is important for improving the precision. And it was revealed that the larvae lived in Yato extensively, and the larvae preferred the environment between forest edge and forest inner with developed forest floor vegetation. There is a probability that abandonment of forest floor vegetation increase its habitat, so adequate management is required monitoring its population.
