Tetramorium khyarum

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Native to savannah and grassland habitats across western Africa and the Arabian Peninsula. Recorded from Botswana, Democratic Republic of Congo, Ivory Coast, Namibia, Nigeria, Saudi Arabia, South Africa, and Yemen ^[1][4]. These ants prefer warm, relatively dry to moderately humid environments typical of savannah ecosystems.
• Colony Type: Unconfirmed, colony structure has not been specifically documented for this species.
• Size & Growth:
  • Queen: Size data unavailable, no reliable measurements for queens are published.
  • Worker: 3.9-4.4 mm ^[1]
  • Colony: Up to a few thousand workers (estimated from genus patterns).
  • Growth: Moderate (inferred from typical *Tetramorium* development).
  • Development: Estimated 6-8 weeks at optimal temperature (based on related *Tetramorium* species). (Development time is inferred, specific timing for *T. khyarum* has not been documented.)
• Antkeeping:
  • Temperature: Keep at 24-28 °C, these African savannah ants like it warm. A heating cable on one side of the nest creates a temperature gradient.
  • Humidity: Moderate, let the nest substrate dry out partially between waterings. They come from savannahs, so avoid constant wetness. A water test tube provides drinking water.
  • Diapause: No, as a species from tropical/subtropical regions, it does not need hibernation. Activity may slow in cool weather but it's not true diapause.
  • Nesting: Y‑tong (AAC) or plaster nests work well. They prefer tight chambers scaled to their medium size. Naturalistic setups with dry to moderately damp substrate are fine.
• Behavior: Generally calm and not aggressive. Workers are active foragers that search the outworld for food. They have a functional stinger (typical of Myrmicinae) but rarely use it, they usually retreat when disturbed. Escape prevention is important because they are moderate-sized (under 5 mm).
• Common Issues: colonies may fail if kept too cold, maintain temperatures above 20 °C., excess humidity can cause mold and stress, allow substrate to dry between waterings., wild-caught colonies might carry parasites, quarantine new colonies., growth is moderate, avoid overfeeding or disturbing the colony too much.

Housing and Nest Setup

You can keep Tetramorium khyarum in Y‑tong (AAC) or plaster nests, both work well for medium‑sized ants. Keep the chambers small to match their size. For the outworld, a simple plastic container with a tight lid is fine. Since workers are under 5 mm, standard escape prevention like Fluon on the rim works. Don't make the outworld too large, these ants prefer compact, easy‑to‑defend spaces. Test‑tube setups are perfect for founding colonies: use a tube with a water reservoir sealed with cotton. ^[1]

Feeding and Diet

Like most Tetramorium species, T. khyarum is a generalist feeder. Offer protein twice a week, small crickets, mealworms, or fruit flies. They also love sugar water, honey, or diluted maple syrup for energy. In the wild they forage for honeydew and small invertebrates, so variety is good. Remove any uneaten prey after 24-48 hours to stop mold. Fresh water should always be available (a water test tube or a small dish with a sponge). ^[1]

Temperature and Seasonal Care

Keep the temperature between 24-28 °C for healthy colony growth and brood development. These ants come from warm African savannahs and don't like the cold. Use a heating cable on one side of the nest to create a temperature gradient. They don't need hibernation, being from tropical/subtropical areas, they stay active year‑round with proper warmth. They may slow down a bit in cooler months, but that's not true dormancy. Avoid letting the nest drop below 20 °C for long periods. ^[3]

Humidity and Water

Provide moderate humidity, let the nest substrate partially dry between waterings. These savannah ants prefer drier conditions than forest species. Over‑watering leads to mold and stresses the colony. A water test tube connected to the nest gives them constant drinking water. You can mist the outworld occasionally, but don't keep it constantly damp. ^[3][2]

Behavior and Colony Dynamics

Workers are active foragers that quickly find food and lay trails. They belong to the subfamily Myrmicinae, so they have a functional stinger, but they're not aggressive and usually retreat if disturbed. The colony grows gradually over many months. First workers (nanitics) will be smaller than mature workers but will grow as the colony expands. As with many Tetramorium, the queen will lay eggs continuously once the colony is established. ^[1]

Frequently Asked Questions

Report an Issue

The current care sheet is based fully on literature. See inconsistencies, or something that's incorrect? Please report here, it will be resolved after review from an admin. Contributing to the blogs tab also helps providing information, to make us be able to further improve the caresheets. Thank you for your support!

References