Thistle Tortoise Beetle vs Brazilian Railroad Worm
Side-by-side species comparison
| Attribute | Thistle Tortoise Beetle | Brazilian Railroad Worm |
|---|---|---|
| Scientific Name | Cassida rubiginosa | Phrixothrix viviani |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Phengodidae |
| Size | 6-8 mm | 20-40 mm (female), 10-14 mm (male) |
| Habitat | Grasslands | Grasslands |
| Diet | Herbivores | Omnivores |
| Regions | Europe, Asia, introduced to New Zealand and North America | South America, Brazil |
| Conservation | Least Concern | Least Concern |
Thistle Tortoise Beetle
A pale green to yellowish-brown tortoise beetle with a somewhat flattened, circular body. It has been used as a biocontrol agent against invasive thistles in several countries.
Did You Know?
It was deliberately introduced to New Zealand and Canada as a biological control agent to combat invasive thistle species.
Brazilian Railroad Worm
A tropical glowworm beetle with the remarkable ability to produce both green lateral lights and a red cephalic light. The female is large and larviform, while the male is a small, short-lived winged beetle.
Did You Know?
The red and green lights are produced by different luciferases, making this beetle a subject of intensive biochemical research.