Purple Loosestrife Beetle vs Narrow-bordered Bee Hawk-moth

Side-by-side species comparison

Attribute Purple Loosestrife Beetle Narrow-bordered Bee Hawk-moth
Scientific Name Galerucella calmariensis Hemaris tityus
Order Coleoptera Lepidoptera
Family Chrysomelidae Sphingidae
Size 4-5 mm 38-45 mm wingspan
Habitat Wetlands Wetlands
Diet Herbivores Omnivores
Regions Europe (native), introduced to North America Europe, temperate Asia
Conservation Least Concern Least Concern (declining in western Europe)

Purple Loosestrife Beetle

A small, yellowish-brown beetle deliberately introduced as a biocontrol agent against invasive purple loosestrife. Adults and larvae feed on leaves and growing tips of the target weed.

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Did You Know?

This beetle has been one of the most successful classical biological control agents, dramatically reducing purple loosestrife infestations across North America.

Narrow-bordered Bee Hawk-moth

A bumblebee mimic with largely transparent wings and a furry olive-and-brown body. It flies by day, hovering at flowers in a manner indistinguishable from a real bee.

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Did You Know?

The wing scales fall off during its first flight, leaving the characteristic clear patches.