Stonefly : adult Stonefly : adult Illustration of stonefly adult stonefly, adult, Arthropoda, Insecta, Plecoptera 2009-01-22 image/svg+xml Stonefly : adult 2009-01-22 Integration and Application Network https://ian.umces.edu/media-library/stonefly-adult/ https://ian.umces.edu/media-library/stonefly-adult/ en-US stonefly, adult, Arthropoda, Insecta, Plecoptera Illustration of stonefly adult