Holoptic

Definition

A type of eye structure in which the compound eyes meet along the midline of the head, typically found in male flies.

Etymology

From Greek 'holos', meaning 'whole', and 'optikos', meaning 'of or pertaining to sight'.

Example

The holoptic eyes of male hoverflies are adapted for better vision during flight.

Related Terms

• Ommatidium
• Compound eye

Usage Notes

Holoptic eyes are found in some male flies, such as in the family Syrphidae.