Arctic Mayfly vs Kentucky Cave Beetle

Side-by-side species comparison

Attribute Arctic Mayfly Kentucky Cave Beetle
Scientific Name Baetis bundyae Darlingtonea kentuckensis
Order Ephemeroptera Coleoptera
Family Baetidae Carabidae
Size 5-8 mm 5-6 mm
Habitat Tundra & Arctic Caves
Diet Omnivores Omnivores
Regions Arctic Canada, Alaska, northern Scandinavia United States
Conservation Least Concern Vulnerable

Arctic Mayfly

A small, delicate mayfly with transparent wings and two long tail filaments. Nymphs are agile swimmers in cold Arctic streams. Adults emerge for a very brief mating flight during the short Arctic summer.

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Did You Know?

Adult mayflies live only a few hours to a few days, just long enough to mate and lay eggs before dying.

Kentucky Cave Beetle

A troglobitic ground beetle found in caves along Kentucky's Cumberland Plateau. It is eyeless with elongated appendages typical of cave life.

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Did You Know?

Populations in different caves show significant genetic isolation from one another.