Adult fruit fly hatching, SEM

Adult fruit fly hatching, SEM

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: Fruit fly hatching. Coloured scanning electron micrograph (SEM) of an imago (adult) of the fruit fly Drosophila melanogaster (wild type, Oregon R), at eclosion (hatching). The imago bursts out of its pupa using an inflatable sac (ptilinum), a lip-shaped ridge in the middle of its head. This sac is pumped up with blood, which causes the case to split. It is withdrawn permanently into the head after hatching. Two large compound eyes (red) are seen, with three simple eyes (ocelli, red) between them. Spiracles, or breathing tubes, are seen on the peeled up edge of the pupa. Magnification: x36 when printed 10cm wide.

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Keywords: adult, animal, antenna, antennae, arista, birth, coloured, compound, drosophila melanogaster, eclosion, eye, eyes, fruit fly, hatching, imago, insect, insecta, invertebrate, invertebrates, metamorphosis, nature, ocelli, ocellus, ptilinum, pupa, scanning electron micrograph, sem, spiracle, spiracles, wildlife, zoology

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