Bizarre Caddisfly vs Caenis Mayfly

Side-by-side species comparison

Attribute Bizarre Caddisfly Caenis Mayfly
Scientific Name Lepidostoma togatum Caenis horaria
Order Trichoptera Ephemeroptera
Family Lepidostomatidae Caenidae
Size 8-11 mm 3-6 mm
Habitat Rivers & Streams Rivers & Streams
Diet Herbivores Detritivores
Regions North America Europe
Conservation Least Concern Least Concern

Bizarre Caddisfly

A North American case-building caddisfly with square-sectioned cases made of leaf bits. Adults have a distinctive hairy appearance around the head.

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Did You Know?

Male adults have bizarre modified maxillary palps that give the family its common name.

Caenis Mayfly

One of the smallest mayflies, often called the 'angler's curse' because trout feed on them selectively. Larvae inhabit slow-flowing rivers and lake margins.

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Did You Know?

Caenis mayflies are called the angler's curse because their tiny size makes matching them with artificial flies nearly impossible.