English: Ecological studies on overwintering populations of Culex pipiens pallens : 2. Successive change of wing length and R-ratio of the females entering and leaving an overwintering shelter
Japanese: アカイエカ越冬個体群の生態学的研究 : 2. 越冬場所に出入りする雌蚊集団の翅長と R 比の経時的変化