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  2. Simple eye in invertebrates - Wikipedia

    en.wikipedia.org/wiki/Simple_eye_in_invertebrates

    The term "ocellus" (plural ocelli) is derived from the Latin oculus (eye), and literally means "little eye". In insects, two distinct ocellus types exist: [9] dorsal (top-most) ocelli, and lateral ocelli (often referred to as ocelli and stemmata, respectively), most insects have dorsal ocelli while stemmata are found in the larvae of some ...

  3. External morphology of Lepidoptera - Wikipedia

    en.wikipedia.org/wiki/External_morphology_of...

    [11] [21] The ocelli are not homologous to the simple eyes of caterpillars which are differently named as stemmata. [5] The ocelli of Lepidoptera are reduced externally in some families; where present, they are unfocussed, unlike stemmata of larvae which are fully focussed. The utility of ocelli is not understood at present. [5]

  4. Eyespot (mimicry) - Wikipedia

    en.wikipedia.org/wiki/Eyespot_(mimicry)

    Some reptiles, such as the sand lizard of Europe, have eyespots; in the sand lizard's case, there is a row of spots along the back, and a row on each side. [12]Many species of cat, including Geoffroy's cats, jungle cats, pampas cats, and servals, have white markings, whether spots or bars, on the backs of their ears; it is possible that these signal "follow me" to the young of the species.

  5. Understanding the Beautiful Yet Strategic Art of Peacock ...

    www.aol.com/understanding-beautiful-yet...

    Each feather consists of a central shaft, loose barbs on its sides, and an ocelli or “eyespot” pattern at the end. The overall effect is an iridescent pattern of golds, greens, browns, and ...

  6. Rhopalium - Wikipedia

    en.wikipedia.org/wiki/Rhopalium

    Ocelli (the plural of ocellus) are a type of simple eye, or eyespot. They are photoreceptive, but very simple; differing from complex eyes with compound lenses, ocelli cannot morph the sensation of light into a complete image, and are utilized to sense movement and the absence and presence of light.

  7. Corydalidae - Wikipedia

    en.wikipedia.org/wiki/Corydalidae

    Ocelli are present; the fourth tarsal segment is cylinder-shaped. The four large wings are translucent, smoky grey, or mixed, and the anterior pair is slightly longer than the posterior one. Their aquatic larvae are used as fish bait and are called hellgrammites.

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  9. Morphology of Diptera - Wikipedia

    en.wikipedia.org/wiki/Morphology_of_Diptera

    The ocelli, when present, are located in the top of the head, arranged at the corners of a triangle in an area called stemmaticum or ocellar triangle. For the purpose of systematics, the presence, the arrangement, and the conformation of the cephalic bristles is important and they have a specific terminology.

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