False-colour SEM of head of Black Fly

False-colour SEM of head of Black Fly

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Credit: CNRI/SCIENCE PHOTO LIBRARY

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Caption: False-colour scanning electron micrograph (SEM) of the head of the minute black fly, Simulium sp., also known as the buffalo-gnat. The micrograph shows the compound eyes, short segmented antennae and piercing mouthparts. Their poisonous bites and blood- sucking habits cause iritation and sickness to humans, serious injury to cattle and horses and may cause fatalities but to date not among humans. Certain species like Simulium damnosum of Africa transmits the filaria worm Onchocera volvulus which causes the disease onchoceriasis or river blindness. Their distribution is worldwide. Magnification x23 at 6x7cm size.

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Keywords: animal, black fly, buffalo gnat, compound eye, false-coloured, head, insect, insecta, invertebrate, invertebrates, nature, pest, poisonous bite, simulium sp., wildlife, zoology

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