...Ajay Narendra; Willi A. Ribi ABSTRACT Insects have exquisitely adapted their compound eyes to suit the ambient light intensity in the different temporal niches they occupy. In addition to the compound eye, most flying insects have simple eyes known as ocelli, which assist in flight stabilisation...

...Yuri Ogawa; Willi Ribi; Jochen Zeil; Jan M. Hemmi ABSTRACT In addition to compound eyes, honeybees ( Apis mellifera ) possess three single-lens eyes called ocelli located on the top of the head. Ocelli are involved in head-attitude control and in some insects have been shown to provide celestial...

... declared. 12 11 2012 30 4 2013 © 2013. Published by The Company of Biologists Ltd 2013 compound eyes ocelli ommochromes hematophagy mutants Mutations in eye color have been identified in several insect species and have been used as a marker in genetic studies...

...Richard P. Berry; William T. Wcislo; Eric J. Warrant SUMMARY Growing evidence indicates that insect ocelli are strongly adapted to meet the specific functional requirements in the environment in which that insect lives. We investigated how the ocelli of the nocturnal bee Megalopta genalis...

...Sebastian Schwarz; Laurence Albert; Antoine Wystrach; Ken Cheng Many animal species, including some social hymenoptera, use the visual system for navigation. Although the insect compound eyes have been well studied, less is known about the second visual system in some insects, the ocelli. Here we...

..., unlike the strictly diurnal A. cerana and A. florea , A. dorsata possess large ocelli, a feature that it shares with all dim-light bees. However, the eyes of the facultatively nocturnal A. dorsata are much less sensitive than those of known obligately nocturnal bees such as Megalopta genalis in Panama...

... that this context was determined by the ocelli. In our light condition, we noted that nearly three-quarters of trials resulted in tunneling ( Fig. 5C,D ; Fig. 6A )( P <0.01, χ 2 test). Because cockroaches are nocturnal animals, we suspected that the bright ambient light conditions may have affected...

.... The fly can also sense rotation using its three ocelli (simple eyes), by comparing the light intensities measured at each ocellus. We report that an individually identified tangential cell, V1, responds in an apparently rotation-specific manner to stimulation of the ocelli. This effect was seen...

... synaptic transmission ocelli cockroaches The ocellar tract of the cockroach contains axons of four L neurones ( Mizunami et al . 1982 ) and arborizations of nine types of ocellar-driven neurones. The ocellar-driven neurones, which we term third-order neurones, comprise five types which project...

... or a few transient depolarizations at the end of illumination. However, these neurones are classified into several physiological types from the responses recorded in their axons or terminal regions. 29 04 1986 © 1986 by Company of Biologists 1986 ocelli interneurones cockroaches...

... in the FMNs directly. The other produces spikes and PSPs in thoracic interneurones, at least some of which are phasic-ally active during flight and are presynaptic to FMNs. The roles of the two pathways are discussed. 05 05 1982 23 09 1982 © 1983 by Company of Biologists 1983 Ocelli...