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  • Simple eye in invertebrates - Wikipedia
    Stemmata (singular stemma) are a class of simple eyes Many kinds of holometabolous larvae bear no other form of eyes until they enter their final stage of growth Adults of several orders of hexapods also have stemmata, and never develop compound eyes at all
  • Photoreceptors – ENT 425 – General Entomology
    Lateral ocelli (=stemmata) are the sole visual organs of holometabolous larvae and certain adults (e g Collembola, Zygentoma, Siphonaptera, and Strepsiptera) Stemmata always occur laterally on the head, and vary in number from one to six on each side
  • stemma, stemmata - BugGuide. Net
    stemma noun, plural stemmata - the simple eye of a certain larval insects, also called lateral ocelli, though they are not homologous with ocelli They are found on the heads of the larvae of most holometabolus insects
  • Ocelli and Stemmata - ScienceDirect
    The second group of simple eyes, formerly termed “lateral ocelli” but now termed “stemmata” (singular stemma), is found in the larvae of Holometabola Stemmata are innervated laterally from the optic lobes, and typically there is a group on each side of the head
  • How Do Insects Use Stemma - blog. entomologist. net
    Stemmata, simple eyes found in holometabolous insect larvae, serve primarily to detect light, aiding in orientation and habitat selection Commonly referred to as lateral ocelli, these structures facilitate motion detection and contribute to complex visual processing, comparable to that of adult insects
  • Form and Function of Stemmata in Larvae of . . . - ResearchGate
    functions of stemmata, such as spatial vision, spectral sensitivity, and motion perception are reviewed Stemmata also have several "nonvisual" functions that fall beyond the scope of this
  • Escaping compound eye ancestry: the evolution of single-chamber eyes in . . .
    Larval eyes of holometabolous insects are derived from compound eyes, and are called stemmata They also have been referred to as lateral ocelli, though they are distinctly different from the medial ocelli of adult insects In most orders, only five to seven stemmata are present (Paulus, 1986), and many of them are quite simple visual organs
  • Stemmata | anatomy | Britannica
    …of minute simple eyes (stemmata) A short liplike labrum is in front of the mouth Behind the labrum are paired jaws (mandibles) that are short, broad, and powerful to allow consumption of large amounts of plant material
  • Escaping compound eye ancestry: the evolution of single . . . - PubMed
    Stemmata, the eyes of holometabolous insect larvae, have gained little attention, even though they exhibit remarkably different optical solutions, ranging from compound eyes with upright images, to sophisticated single-chamber eyes with inverted images
  • Insect Sensory System - SpringerLink
    Stemmata are the visual structures of holometabolous larvae, occurring laterally on the head and can vary in number from one (most typically) to six on each side (Chapman et al , 2013) (Fig 3c, d) Stemmata have been wrongly called lateral ocelli, but they differ in morphology and origin





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