幼生 幼虫
immature of its kind especially being or characteristic of immature insects in the newly hatched wormlike feeding stage
その種類で未熟な 卵から孵化したばかりの芋虫のような段階の未成熟な昆虫の特徴
larval societies larval crayfishes the larval stage
幼虫の社会 幼虫のザリガニ 幼生期