Abstract: The compound eye of the peach fruit moth, Carposlna niponeis Wals. Measures 0.54 mm by 0.50 mm in size and each of them contains about 1500 ommatidia arranged in a density about 330 per square millimeter. The clear zone is about 64% of the ommatidum. The retinula cell is enlarged at the distal end of the clear zone where the nucleus is located. The ommatidiun and its periphery from the distal surface to the proximal are divided into 10 layers as revealed in examination of the fine structures in the present work.

Key words: Carposina niponensis Wals——Compound eye——ommatidium