Giant Caddisfly vs Kauai Flightless Stag Beetle

Side-by-side species comparison

Attribute Giant Caddisfly Kauai Flightless Stag Beetle
Scientific Name Phryganea grandis Apterocyclus honoluluensis
Order Trichoptera Coleoptera
Family Phryganeidae Lucanidae
Size 25-30 mm 1.5-3 cm
Habitat Ponds & Lakes Mountains
Diet Herbivores Herbivores
Regions Europe, Asia United States
Conservation Least Concern Endangered

Giant Caddisfly

The largest European caddisfly with mottled brown-and-cream wings spanning up to 60 mm. Its larvae build portable cases from spirally arranged plant fragments.

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Did You Know?

Giant caddisfly larvae construct their cases in a beautiful spiral pattern from carefully cut pieces of leaves and stems.

Kauai Flightless Stag Beetle

A flightless stag beetle endemic to the island of Kauai in Hawaii. Larvae develop in rotting logs of native trees.

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Did You Know?

It is the only stag beetle in Hawaii and has completely lost its ability to fly.