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Updated: August 24, 2026
The caddis-worms kill the ova by making a small hole in them and sucking some of the contents out; from this hole some more of the contents escapes, and as it comes into contact with the water becomes opaque. Caddis-worms are the larvæ of an order of four-winged flies commonly known as sedges, caddis-flies, or water-moths.
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