Dock Leaf Weevil vs Black-Headed Blister Beetle

Side-by-side species comparison

Attribute Dock Leaf Weevil Black-Headed Blister Beetle
Scientific Name Rhinoncus pericarpius Epicauta pennsylvanica
Order Coleoptera Coleoptera
Family Curculionidae Meloidae
Size 2.5-3.5 mm 10-18 mm
Habitat Farmland Grasslands
Diet Leaf Miners Parasitoids
Regions Europe North America
Conservation Least Concern Least Concern

Dock Leaf Weevil

A small grey-brown weevil found on dock and sorrel plants. Larvae mine inside dock stems. One of several weevil species associated with dock plants.

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Did You Know?

Part of a community of six or more weevil species that share dock plants, each exploiting a different plant part.

Black-Headed Blister Beetle

An entirely black blister beetle common across eastern North America, often seen in large groups on goldenrod in autumn. Its larvae are parasitoids of grasshopper eggs.

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Did You Know?

Larvae go through hypermetamorphosis, changing dramatically in form across five different larval stages.