The structure and function of simple eyes of insects
Author of the article:LIU Hong-Xia;CAI Wan-Zhi
Author's Workplace：Department of Entomology，China Agricultural University， Beijing 100094，China
Key Words：insect; simple eyes; ocellus; stemmata
Abstract：In addition to the compound eyes, most of the insects have some simple eyes called ocelli. Adult and nymphal hemimetabolous insects possess some simple eyes on the head between the compound eyes called dorsal ocelli. Dorsal ocelli vary a lot in number and