Iris Flea Beetle vs Ragweed Leaf Beetle

Side-by-side species comparison

Attribute Iris Flea Beetle Ragweed Leaf Beetle
Scientific Name Aphthona nonstriata Zygogramma suturalis
Order Coleoptera Coleoptera
Family Chrysomelidae Chrysomelidae
Size 2-3 mm 6-8 mm
Habitat Wetlands Grasslands
Diet Root Feeders Herbivores
Regions Europe North America (native), introduced to Russia, China, Europe
Conservation Least Concern Least Concern

Iris Flea Beetle

A small blue-green flea beetle associated with yellow iris in wetland habitats. Larvae feed on iris roots underwater. A specialized member of the wetland beetle community.

💡

Did You Know?

Larvae can survive submerged among iris roots, extracting oxygen from the waterlogged plant tissue.

Ragweed Leaf Beetle

A brown beetle with dark longitudinal stripes on the elytra, introduced to several countries as a biocontrol agent against common ragweed. Both adults and larvae feed on ragweed foliage.

💡

Did You Know?

It was introduced from North America to the former Soviet Union in the 1970s as biological control against ragweed, a major hay fever allergen source.