Blue-Winged Olive vs Woodland Acerentomid

Side-by-side species comparison

Attribute Blue-Winged Olive Woodland Acerentomid
Scientific Name Baetis tricaudatus Acerentomon maius
Order Ephemeroptera Protura
Family Baetidae Acerentomidae
Size 5-9 mm 1.2-2.0 mm
Habitat Rivers & Streams Woodlands
Diet Omnivores Omnivores
Regions North America Europe
Conservation Least Concern Not Evaluated

Blue-Winged Olive

A small olive-colored mayfly with distinctive bluish-gray wings, abundant in clean streams across North America. It produces multiple generations per year.

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Did You Know?

Blue-winged olives are among the few mayflies that hatch in winter, providing vital food for trout during cold months.

Woodland Acerentomid

A relatively large proturan found in deciduous forest soils of central Europe. It is among the better-studied acerentomid species.

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Did You Know?

Research suggests this species feeds specifically on mycorrhizal fungi, making it dependent on healthy forest root systems.