a simple single-lensed eye present in many insects, often in a pattern of three
Small, single visual units located on the heads of spiders and many insects.
o-SELL-ee Eyespots; visual organs in flatworms. 644
Cosmetic eyespots used for protection or the simple eyes of caterpillars
The simple eyes or stemmata of insects, usually situated on the crown of the head between the great compound eyes. 134
(sing. ocellus) These are the three simple eyes found at the top of the head between the compound eyes.