ocellar bristles: in Diptera, are situated close to the ocelli, usually directed forward: often absent.
ocellar ribband: a crescent-shaped, smooth thin belt across the eye region in butterfly chrysalids.
The ocellar spots may be on the scales of the lateral line or on other definite areas.
ocellar triangle: a triangle, indicated by grooves or depressions, on which the ocelli are situated; Diptera.
ocellar structure is common; the ocelli consist mainly of orthoclase and quartz, and may be a quarter of an inch in diameter.
These he divides into ocellar organs of regular form or luminous spots, and irregular glandular organs or luminous areas.
ocellar structure is occasionally present, though less marked than in the camptonites.