Leaf-Rolling Rose Sawfly vs Kauai Flightless Stag Beetle

Side-by-side species comparison

Attribute Leaf-Rolling Rose Sawfly Kauai Flightless Stag Beetle
Scientific Name Blennocampa phyllocolpa Apterocyclus honoluluensis
Order Hymenoptera Coleoptera
Family Tenthredinidae Lucanidae
Size 3-5 mm 1.5-3 cm
Habitat Underground Mountains
Diet Herbivores Herbivores
Regions Europe, introduced to North America United States
Conservation Least Concern Endangered

Leaf-Rolling Rose Sawfly

A tiny black sawfly that causes rose leaflets to roll downward into tight cylinders. The larva feeds inside the rolled leaf shelter.

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Did You Know?

The female injects a chemical into the leaf margin during egg-laying that causes the leaf to roll tightly, creating a protective tube for the developing larva.

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.