Coloured SEM of the maize weevil, Sitophilus sp.

Coloured SEM of the maize weevil, Sitophilus sp.

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This image is part of the feature Ten Amazing Beetle Facts


Caption: Maize weevil. Coloured scanning electron micrograph (SEM) of the head of a maize weevil, Sitophilus sp., showing its compound eyes (gold, at centre left). The weevil is a type of beetle whose head is elongated into a snout or rostrum (at centre right) which has blade-like mandibles at its tip. The rostrum bores through the fibrous coat of a maize grain and the mandibles chew & crush the kernel. Female weevils insert their eggs in cavities dug in the kernel, ensuring a food supply for the larvae. Stored grain is vulnerable to infestations, although the use of fumigants and improved storage methods reduces the risk. Magnification: x20 at 35mm size.

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Keywords: animal, beetle, compound eye, grain weevil, insect, insecta, invertebrate, invertebrates, maize, maize weevil, nature, sitophilus sp., snout beetle, type, weevil, wildlife, zoology

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