The gradient in size of ocelli is also indicated by specimens from other states.
Only ocelli, as these eyes are called, are found in the spider and his kind.
Mr. Hugo Bilgram has discovered valves with three and six ocelli.
These ocelli are frequently arranged in series on each side.
Ocellar bristles: in Diptera, are situated close to the ocelli, usually directed forward: often absent.
Antenn longer than the head; or if shorter, then the eyes and ocelli absent.
ocelli occur in larvae and, singly or in small groups, in adults: the compound eyes are made up of numerous ocelli.
Third segment of the antenna with five divisions; ocelli present.
The ocelli of the Trinucleid and Eoharpes are smaller, and the detailed structure not yet investigated.
Circular spots are sometimes surrounded by one or more differently shaded zones, and are thus converted into ocelli.