What Does a Mayfly Insect Look Like? If you’ve ever seen a reedy-looking bug with two long, antenna-looking protrusions from its abdomen, you might have seen a mayfly. Mayflies have thin bodies ...

Mayflies are a group of flying insects “known for their extremely ... A nymph Behningia baei mayfly found in the Mae Chaem River in 2024. Photo from Kwanboon and Boonsoong (2025) Like other related ...