Parasitic worms of insects
Horsehair worms or hairworms are a group of nematode-like long worms (Phylum Nematomorpha; Class Gordioidea). Their name is based on an old superstition that the worms arise from horsehairs that happen to fall into the water. The body of a horsehair worm is threadlike (less than 4⁄100 inch in diameter) and can be up to 14 inches long. They vary in color from almost white to light tan to dark brown.
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