Ragwort Flea Beetle vs Water Spinach Flea Beetle

Side-by-side species comparison

Attribute Ragwort Flea Beetle Water Spinach Flea Beetle
Scientific Name Longitarsus jacobaeae Chaetocnema basalis
Order Coleoptera Coleoptera
Family Chrysomelidae Chrysomelidae
Size 2-3 mm 1.5-2 mm
Habitat Farmland Wetlands
Diet Root Feeders Seed Feeders
Regions Europe South and Southeast Asia, Pacific Islands
Conservation Least Concern Least Concern

Ragwort Flea Beetle

A small black flea beetle that feeds on ragwort plants. Successfully used as a biological control agent for invasive ragwort in Australia and New Zealand. Larvae mine in roots.

💡

Did You Know?

One of the most successful biological control agents ever used, dramatically reducing ragwort in multiple countries.

Water Spinach Flea Beetle

A tiny, shiny dark bronze to black flea beetle that is a significant pest of rice seedlings and water spinach across tropical Asia. Its shot-hole feeding weakens young plants.

💡

Did You Know?

Despite its minute size, this beetle can cause devastating damage to rice nurseries when it attacks seedlings at the one-leaf stage.