Project Watershed Central New York
Dedicated to facilitating water resource education in Central New York
Caddisfly Larva
Pollution-Intolerant
Some spin webs to trap food from the flowing water
One generation hatches per year
Although most species are very sensitive to pollution, some are pollution tolerant
Up to 1 1/2 inches long • Very small or no antennae
Six segmented legs on upper middle section of body
Filamentous gills may be on the end of the body or on the underside