Yellow crazy ant is a 2-star species card from the Industrial Age. Yellow crazy ants run in fast, jerky, 'crazy' paths.
Bonus by grade
| Grade | Copies needed | Bonus |
|---|---|---|
| Common | 0 | +6% population growth |
| Uncommon | 2 | +10.8% population growth |
| Rare | 5 | +18% population growth |
| Epic | 10 | +27% population growth |
| Legendary | 20 | +42% population growth |
Duplicates raise the grade: Uncommon at 2, Rare at 5, Epic at 10, Legendary at 20.
Codex
- Common: Anoplolepis gracilipes is one of the world's worst invasive species.
- Uncommon: On Christmas Island they have killed an estimated 10 to 15 million red land crabs.
- Rare: They spray formic acid instead of stinging.
- Epic: They tend scale insects for their honeydew, which can harm forests.
- Legendary: Australia works hard to eradicate them, especially in Queensland and the Northern Territory.
Field notes are reviewed regularly. Spot something wrong? Tell us.
Field guide
| Size | Workers about 4 mm, yellowish brown with long legs |
| Colony | Nests average about 4,000 workers; supercolonies cover 10–150 hectares |
| Queens | Many queens; colonies spread by budding |
| Nest | Leaf litter, soil cracks, animal burrows, tree hollows and buildings |
| Diet | Small animals, dead creatures, nectar and honeydew from scale insects |
| Defence | No sting; sprays formic acid, which can blind small animals like crabs |
| Active | Day and night; extreme heat or cold slows foraging |
| Lifespan | Not well known |
| Where it lives | Tropical Asia, the Pacific and Indian Ocean islands and northern Australia |
Did you know?
- Where their supercolonies form, workers from different nests do not fight each other.
- One Johnston Atoll supercolony had up to 1,000 queens in a patch 6 metres wide.
- Supercolonies have been measured spreading about 400 m a year in Seychelles and about 1 km on Christmas Island.
Sources: mississippientomologicalmuseum.org.msstate.edu, giasipartnership.myspecies.info
Codex sets
- Ants of the machine ages: Bullet ant, Argentine ant, Pharaoh ant, Yellow crazy ant, Odorous house ant, Ghost ant, Mangrove ant, Spider ant, European fire ant, Red harvester ant, Longhorn crazy ant, Little fire ant, Exploding ant, Acacia ant, Azteca ant, Indian jumping ant
Queen affinity
- Black garden ant: ×1 chance
- Meat ant: ×0.6 chance
- Bull ant: ×0.6 chance