Alder Cimbicid Sawfly vs Arboreal Ground Beetle

Side-by-side species comparison

Attribute Alder Cimbicid Sawfly Arboreal Ground Beetle
Scientific Name Cimbex americanus Dromius quadrimaculatus
Order Hymenoptera Coleoptera
Family Cimbicidae Carabidae
Size 18-25 mm 5-7 mm
Habitat Rivers & Streams Woodlands
Diet Wood Feeders Wood Feeders
Regions North America Europe, western Asia
Conservation Least Concern Least Concern

Alder Cimbicid Sawfly

The largest sawfly in North America, with a robust body up to 25 mm long, clubbed antennae, and smoky brown wings. Body color varies from black to brownish-yellow.

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Did You Know?

The large, green larvae can squirt a fluid from lateral glands when disturbed, similar to their European relative Cimbex femoratus.

Arboreal Ground Beetle

A small, flattened ground beetle that lives primarily on trees rather than on the ground. It has a dark brown body with four pale spots on its elytra and hides under bark.

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Did You Know?

Unlike most ground beetles, it spends its entire life on trees and is rarely found on the ground, challenging the common name of the family.