Larvae

The Description of Five Ephemera Species Larvae (Ephemeroptera:Ephemeridae);

蜉蝣属Ephemera五种稚虫描述

Species distribution and community structure of mayfly naiads in one site respond to the local aquatic environmental condition closely.

报道了北京地区几条主要河流蜉蝣稚虫的种类分布，探讨了其群落结构特征及其与水体环境质量之间的关系，运用种类多样性指数和聚类分析方法对各水体质量状况进行分类评价，结果表明白河和拒马河质量为最好，其余依次为永定河、清水河上游、潮河和清水河。