Larva ID Tips: Stoneflies
Stonefly larvae are flattened and have 2 “tails” or cerci. If gills are present, they are on the underside of the head or thorax. If gills are present on the abdomen, they are only on the first 2-3 segments in the majority of species.
![stonefly2 Figure 8.9: Underside of stonefly larva. Note the gills between the legs and on the first few segments of the abdomen. Image from URL: http://www.troutnut.com/specimen/688](http://www.sciencepartners.info/wp-content/uploads/2012/08/stonefly2.jpg)
Figure 8.E: Underside of stonefly larva. Note the gills between the legs and on the first few segments of the abdomen.
Image from URL: http://www.troutnut.com/specimen/688
![stones Figure 8.10: Some stonefly larvae crawl out of the water and onto stones, logs or emergent vegetation when they are ready to molt to the adult stage. Image from URL: : http://www.troutnut.com/hatch/13/Insect-Plecoptera-Stoneflies](http://www.sciencepartners.info/wp-content/uploads/2012/08/stones.jpg)
Figure 8.F: Some stonefly larvae crawl out of the water and onto stones, logs or emergent vegetation when they are ready to molt to the adult stage.
Image from URL: : http://www.troutnut.com/hatch/13/Insect-Plecoptera-Stoneflies
For more images of stoneflies, visit TroutNut.com.