Myrmicaria natalensis - "Natal Droptail Ant"
Myrmicaria natalensis, commonly known as the Natal Droptail Ant, is a fascinating ant species found across the Afrotropics. These ants are notable for their distinctive down-curved gaster and spines on their mesosoma. Workers exhibit a variable reddish-brown coloration with a darker chestnut-brown gaster, while queens are typically larger with a red head and thorax and a shiny black abdomen. They are known for their highly active and aggressive nature, particularly when foraging and defending their territory. A unique behavior of this species is their 'soil dumping' strategy, where they excessively excavate soil to smother the nests of competing ant species.
- Difficulty: Easy
- Origin & Habitat: Africa (specifically East and South Africa, including Guinea, Ivory Coast, Uganda, DRC, Tanzania, Mozambique, Angola, Namibia, and South Africa) in Forests and Woodlands, Grasslands and Prairies, Savannas, Urban and Suburban areas, often found in Afrotropical mountainous regions with high humidity..
- Colony Type: Polygyne (multiple queens) but some sources also state Monogyne, claustral (queen seals herself in) founding.
- Size & Growth:
- Queen: 12-13mm
- Worker: 3-8mm
- Colony: Large (tens of thousands). Fast growth.
- Antkeeping:
- Temperature: Nest: 22-26°C (ideal at 22-26°C). Outworld: 20-29°C..
- Humidity: Nest: 70-80%. Outworld: 50-80%. A small area of the nest should always remain moist..
- Diapause: Required. 3-4 months at 16-20°C.
- Nesting: This species adapts well to various nest types including acrylic, Ytong, natural setups, and 3D printed nests. They require a medium to large habitat to accommodate their growing colony size and prefer a spacious outworld for foraging..
- Behavior: High (towards handler, food or other ants) aggressiveness.
- Common Issues: Humidity fluctuations, Queen stress (during founding).
One of the most captivating aspects of keeping Myrmicaria natalensis is their incredibly active foraging behavior. These ants are known to be aggressive hunters, making observing them in their outworld a truly engaging experience. Providing a diverse diet of small insects like mealworms, crickets, and fruit flies, alongside various sugary solutions such as honey water or sugar water, will encourage their natural hunting instincts and keep your colony thriving. They are not picky eaters and will even appreciate solid foods like biscuit crumbs or cooked egg.
Myrmicaria natalensis are unique in their defensive mechanisms. When threatened, they are known to raise their gaster upwards and release a secretion of formic acid. While they do possess a sting, which can cause pain and potential allergic reactions if provoked, they primarily rely on this formic acid spray as a deterrent. Handling these ants requires caution, and it's always a good idea to wear gloves if direct contact is necessary.
A particularly interesting behavioral trait of Natal Droptail Ants in the wild is their 'soil dumping' activity. They've evolved a unique strategy of extensively digging into the soil and then using this excavated substrate to cover and overwhelm the nests of competing ant species. While you won't observe this exact behavior in a typical artificial setup, it speaks to their highly competitive and resilient nature, which translates well to their adaptability in captivity. This robustness makes them a forgiving species for antkeepers.
While generally considered easy to care for, especially once the colony has established a worker count of 15-20, founding a colony from a lone queen can require a bit more patience. These queens are claustral, meaning they do not need to forage during the founding stage. They are known to lay large clutches of eggs, with some even being consumed to support the development of the initial workers. Providing a stable environment with appropriate temperature and humidity will greatly aid in successful colony establishment.
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