After escaping hungry fish, mayfly duns fly to streamside vegetation to once ... searching with a general stonefly nymph pattern—such as a beadhead stonefly nymph or even more expressionist ...

On such days, these are the nymph patterns that I like to have in my fly box. In fast water ... It imitates almost every subsurface insect – from mayfly nymphs to caddis pupa to stoneflies.

Scientists scooped sand from a riverbed in Thailand and found two nymphs of rare mayfly species not seen in 22 years, a study said. Photo from Kwanboon and Boonsoong (2025) Knee-deep in a river of ...

During the nymph stage, they feed on algae and small plants; as adult mayflies, they do not have functioning mouths and cannot eat. This means an adult mayfly insect survives in adulthood for only ...