SEM of South American beetle, Prostephanus sp.

SEM of South American beetle, Prostephanus sp.

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Caption: False colour scanning electron micrograph (SEM) of the native South American beetle, Prostephanus sp. It feeds on maize and is therefore an economic pest, destroying vast quantities of the stored grain. The two compound eyes are made up of thousands of visual units (ommatidia), each with a cuticular lens and a group of light-sensitive cells. The mouthparts are of the chewing type and are directed forward. The mandibles are strong pincers. Antennae emerge from either side of the head; their primary function is to house the sense organs of touch & smell. This specimen is pictured on some maize. Magnification: x20 at 35mm size. Original is BW print Z330/059.

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Keywords: animal, beetle, insect, insecta, invertebrate, invertebrates, maize, maize pest, nature, pest, prostephanus, type, wildlife, zoology

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