🐜 Myrmelachista schumanni
Myrmelachista schumanni is a small Amazonian ant species famous for creating “devil’s gardens” — eerie forest patches dominated by a single tree species.
🌳 Common Name
- “Lemon ant” (named for the citrus-like scent released by its host tree)
📍 Habitat
- Native to the Amazon rainforest in countries such as Brazil, Peru, and Colombia
- Lives inside hollow stems of the tree Duroia hirsuta
🌱 The “Devil’s Garden” Phenomenon
These ants:
- Nest in Duroia hirsuta trees
- Inject formic acid into nearby competing plants
- Kill surrounding vegetation
Over time, this creates a patch of forest where almost only Duroia trees grow — called a “devil’s garden” (locally known as supay chacra).
Some gardens can:
- Cover thousands of square meters
- Contain hundreds of trees
- Persist for centuries
🐜 Behavior & Biology
- Small, yellowish ants
- Highly territorial
- Live in colonies inside multiple interconnected host trees
- Mutualistic relationship:
- Ants get shelter
- Tree benefits from reduced competition
🔬 Scientific Importance
This species is often cited as a strong example of:
- Ecosystem engineering
- Ant–plant mutualism
- Long-term landscape modification by insects
If you’d like, I can also explain how scientists discovered the acid-injection behavior or how this relationship evolved.
