Stenelmis crenata

(Say, 1824)

riffle beetle

Stenelmis crenata is a of riffle beetle in the Elmidae, occurring in North America. It inhabits fast-flowing stream environments, particularly riffle in tallgrass prairie streams. The species exhibits a multivoltine with overlapping cohorts and year-round larval presence. are active from late spring through autumn.

Aquatic dryopoid beetles (Coleoptera) of the United States (Page 29) BHL3286814 by Brown, Harley P.; Oceanography and Limnology Program (Smithsonian Institution); United States.. Used under a Public domain license.

Pronunciation

How to pronounce Stenelmis crenata: //stɛˈnɛl.mɪs krɛˈnɑː.tə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Tallgrass prairie streams; specifically riffle with fast-flowing water. and larvae cling to submerged substrates in these high-energy environments.

Distribution

North America; recorded from Manitoba and New Brunswick, Canada.

Seasonality

present from late spring through autumn; larvae present year-round.

Life Cycle

Multivoltine with multiple per year; overlapping cohorts observed. Breeding occurs during summer months with laid in the stream environment.

Behavior

Strong association with riffle ; both and larvae maintain position on submerged substrates in fast-flowing water.

Ecological Role

Contributor to secondary production in benthic macroinvertebrate of prairie stream .