Black-Headed Blister Beetle vs Rosemary Beetle

Side-by-side species comparison

Attribute Black-Headed Blister Beetle Rosemary Beetle
Scientific Name Epicauta pennsylvanica Chrysolina americana
Order Coleoptera Coleoptera
Family Meloidae Chrysomelidae
Size 10-18 mm 5-8mm
Habitat Grasslands Heathland
Diet Parasitoids Herbivores
Regions North America Europe, Africa
Conservation Least Concern Least Concern

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.

Rosemary Beetle

A small oval beetle with metallic green and purple stripes on its elytra. Despite its name, it originates from southern Europe.

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Did You Know?

Its scientific name americana was given in error as the species is native to southern Europe and North Africa.