Conifer Rove Beetle vs Small Milkweed Bug

Side-by-side species comparison

Attribute Conifer Rove Beetle Small Milkweed Bug
Scientific Name Quedius plagiatus Lygaeus kalmii
Order Coleoptera Hemiptera
Family Staphylinidae Lygaeidae
Size 8-12 mm 10-12 mm
Habitat Woodlands Grasslands
Diet Predators Predators
Regions Northern Europe, Siberia, boreal forests North America
Conservation Least Concern Least Concern

Conifer Rove Beetle

A medium-sized, dark rove beetle strongly associated with coniferous bark and dead wood. It is an important predator of bark beetle larvae in boreal and montane forests.

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Did You Know?

Forestry studies have shown that this beetle can reduce bark beetle populations by up to 60 percent in naturally managed forests.

Small Milkweed Bug

A boldly patterned red-and-black seed bug that feeds on milkweed seeds and sequesters toxic cardiac glycosides. Its warning coloration advertises its chemical defense to predators.

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Did You Know?

It stores milkweed toxins in its body, making it taste terrible to birds and other predators that try to eat it.