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Gnat head, SEM
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Gnat head, SEM
Gnat head. Coloured scanning electron micrograph (SEM) of the head of a gnat, a small type of fly (order Diptera), seen from the side. The compound eye (large, red) has many small lenses (ommatidia, round). A large antenna (centre right) is one of two mounted between the eyes (other antenna hidden behind this one). The antennae are sensory organs used for touch and smell. The gnats mouthparts are seen below its eye. On top of the head is a raised lump (blue), which is one of the simple eyes (ocelli) found on flies. Sensory hairs are also seen
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Media ID 6461980
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Antenna Compound Compound Eye Diptera Dipteran False Colour Gnat Insecta Ommatidia Ommatidium Organs Sense Sensory False Coloured
EDITORS COMMENTS
This print showcases the intricate details of a gnat's head, captured through a scanning electron microscope (SEM). The small fly, belonging to the order Diptera, is seen from a side angle, revealing its fascinating features. The most striking element is the compound eye, depicted in large red circles with numerous tiny lenses known as ommatidia. Positioned between these eyes are two prominent antennae that serve as sensory organs for touch and smell. While one antenna is clearly visible at the center right of the image, another remains hidden behind it. Beneath the compound eye lies the gnat's mouthparts, which play an essential role in feeding. Atop its head sits a raised lump colored blue – one of several simple eyes called ocelli found on flies. These additional visual sensors contribute to their overall perception and awareness of their surroundings. The SEM technique employed here allows us to appreciate not only these distinct anatomical structures but also various sensory hairs scattered across the gnat's head. This stunning photograph provides valuable insights into both biology and entomology while highlighting nature's remarkable diversity within insect species.
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