Tropical Rove Beetle vs Blue-Winged Olive

Side-by-side species comparison

Attribute Tropical Rove Beetle Blue-Winged Olive
Scientific Name Erichsonius cinerascens Baetis tricaudatus
Order Coleoptera Ephemeroptera
Family Staphylinidae Baetidae
Size 4-5 mm 5-9 mm
Habitat Wetlands Rivers & Streams
Diet Omnivores Omnivores
Regions North America, Europe North America
Conservation Least Concern Least Concern

Tropical Rove Beetle

A small, greyish rove beetle found in marshy habitats and pond margins. It is a useful bioindicator of wetland health.

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Did You Know?

This beetle can walk on water surfaces using hydrophobic hairs on its tarsi to hunt for aquatic springtails.

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.