Baetis intercalaris

McDunnough, 1921

Small Eastern Blue-winged Olive

Baetis intercalaris is a small minnow mayfly in the Baetidae, distributed across the southern half of Canada and the continental United States. Research has demonstrated that its distribution and abundance in stream are significantly influenced by substrate rock size, with both abundance and increasing with larger rock particles. The has been studied in relation to its microhabitat preferences on rocky stream beds.

Baetis intercalaris by (c) Mark Richman, some rights reserved (CC BY), uploaded by Mark Richman. Used under a CC-BY license.Baetis intercalaris P1660461a by 
xpda. Used under a CC BY-SA 4.0 license.Small minnow mayfly, Baetis intercalaris (7381140382) by Bob Henricks from Charlottesville, United States. Used under a CC BY-SA 2.0 license.

Pronunciation

How to pronounce Baetis intercalaris: /ˈbaɪtɪs ˌɪntərkəˈlɛərɪs/

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Images

Habitat

Rocky stream beds; distribution and abundance are influenced by rock size, with higher abundance and on larger rock substrates (160–190 mm diameter) compared to smaller particles (30–70 mm)

Distribution

Southern half of Canada and the continental United States; Nearctic region

Sources and further reading