Matriella teresa

(Traver, 1934)

Matriella teresa is a of spiny crawler mayfly in the Ephemerellidae, described by Traver in 1934. It belongs to a of mayflies found in North America. As with other members of Ephemerellidae, it likely inhabits freshwater streams and rivers during its aquatic nymphal stage.

Pronunciation

How to pronounce Matriella teresa: /məˈtriːələ təˈreɪsə/

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Identification

Mayflies in the Matriella can be distinguished from related genera by characteristics of the nymphal stage, including body shape and gill structure. Specific identification of M. teresa requires examination of genitalia or nymphal mouthparts and abdominal spines.

Habitat

Freshwater lotic environments, likely streams and rivers with rocky or gravel substrates typical for Ephemerellidae.

Distribution

Nearctic region; recorded from North America.

Life Cycle

As with all Ephemeroptera, M. teresa has an aquatic nymphal stage and a short-lived, non-feeding stage. Specific details of its developmental timing are not documented.

Ecological Role

As a , nymphs likely serve as or collectors in stream , processing organic matter and serving as prey for fish and other aquatic .

Similar Taxa

Other EphemerellidaeSimilar body plan and use; requires detailed morphological examination to distinguish at and level.
Other Matriella speciesCongeneric share many morphological features; identification relies on subtle differences in genitalia or nymphal characteristics.

More Details

Taxonomic note

The was described by J.R. Traver in 1934, a prominent systematist. The Matriella is relatively small and poorly studied compared to other Ephemerellidae genera.

Data availability

No observations are recorded in iNaturalist, and no Wikipedia summary exists, indicating this is a poorly documented with limited public occurrence data.