Ocelli
Guides
Cyllopsis gemma
gemmed satyr, Eastern Gemmed-Satyr
Cyllopsis gemma, commonly known as the gemmed satyr or Eastern Gemmed-Satyr, is a small butterfly in the family Nymphalidae. It occurs in the southeastern United States and northeastern Mexico, where adults fly from spring through fall depending on latitude. The species inhabits forested environments and is frequently observed flitting through shaded undergrowth.
Pangoniinae
Long-tongue Horse Flies
Pangoniinae is a subfamily of horse-flies (family Tabanidae, order Diptera) comprising seven tribes and over 40 genera. Members are distinguished from other Tabanidae by the presence of ocelli and an antennal flagellum typically bearing eight rings. The subfamily includes some of the most primitive known Tabanidae, with most species being low-flying and non-bloodfeeding. Australian Pangoniinae show east coastal distribution with a secondary center in Western Australia.
Ptiloglossa
Ptiloglossa is a genus of large, hairy bees in the family Colletidae, endemic to the Americas. The genus is notable for being among the most common nocturnal colletid bees, with activity restricted to very low light conditions. Species possess enlarged ocelli that facilitate flight in dim light. The genus contains approximately 55 species, with highest diversity in South and Central America.
Trichoceridae
winter crane flies, winter gnats
Trichoceridae, commonly known as winter crane flies or winter gnats, is a small family of delicate, long-legged flies in the order Diptera. Adults are active primarily during cold seasons, including fall, winter, and early spring, with some species observed in snow. They are distinguished from other crane fly families by the presence of three ocelli (simple eyes) on the crown of the head. The family contains approximately 160 described species worldwide, with most diversity concentrated in non-tropical, Holarctic regions. Larvae inhabit moist terrestrial environments where they feed on decaying organic matter.