Lange's Metalmark Butterfly vs Crawling Water Beetle
Side-by-side species comparison
| Attribute | Lange's Metalmark Butterfly | Crawling Water Beetle |
|---|---|---|
| Scientific Name | Apodemia mormo langei | Haliplus ruficollis |
| Order | Lepidoptera | Coleoptera |
| Family | Riodinidae | Haliplidae |
| Size | 2.5-3.5 cm wingspan | 2-3 mm |
| Habitat | Beaches & Coastal | Ponds & Lakes |
| Diet | Herbivores | Herbivores |
| Regions | United States | Europe |
| Conservation | Endangered | Least Concern |
Lange's Metalmark Butterfly
A small metalmark butterfly found only at Antioch Dunes in California. Its larvae feed exclusively on naked-stemmed buckwheat.
Did You Know?
It was one of the first insects listed under the U.S. Endangered Species Act in 1976.
Crawling Water Beetle
A tiny, oval water beetle with a yellowish body covered in rows of dark punctures. Unlike diving beetles, it crawls slowly among aquatic vegetation rather than swimming actively.
Did You Know?
It stores air beneath enlarged hind coxal plates, which act as a built-in oxygen reservoir while submerged.