Ephemerella maculata

Traver, 1934

spiny crawler mayfly

Ephemerella maculata is a of spiny crawler mayfly in the Ephemerellidae. It exhibits a migratory involving upstream of , downstream drift of nymphs, and upstream crawling by nymphs to compensate for displacement. The species is found in North American streams.

Pronunciation

How to pronounce Ephemerella maculata: //ɛˌfɛmɪˈrɛlə ˌmækjuˈleɪtə//

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Habitat

Streams. Nymphs inhabit flowing water environments where they exhibit compensatory upstream crawling to offset downstream drift.

Distribution

North America; Nearctic region.

Life Cycle

Migratory : fly upstream to oviposit; nymphs drift downstream with the current; nymphs actively crawl upstream to compensate for drift losses and maintain position in the stream.

Behavior

engage in upstream prior to oviposition. Nymphs exhibit two distinct movement : passive downstream drift and active upstream crawling that serves as compensatory displacement to maintain longitudinal position in streams.

More Details

Migratory life cycle research

A 2018 study in Aquatic Insects documented the migratory of Ephemerella maculata, demonstrating upstream by , downstream drift of nymphs, and upstream crawling by nymphs as compensatory .