Crematogaster tenuipilis

Quick Summary

• Difficulty: Medium
• Origin & Habitat: East Africa, Kenya and Tanzania in the Afrotropical region. They live in savannah habitats and are associated with Vachellia (Acacia) trees ^[1][2].
• Colony Type: Colony structure is unconfirmed. No specific data on queen number or colony social structure exists for this species.
• Size & Growth:
  • Queen: Size data unavailable, no specific measurements for queens have been documented.
  • Worker: 3-5.5mm total length ^[1].
  • Colony: Unknown, no colony size data available for this species.
  • Growth: Unknown, no development data available.
  • Development: Unknown, specific development timeline has not been studied. (Further research is needed on the development speed of this species.)
• Antkeeping:
  • Temperature: Based on their East African origin, they likely prefer warm conditions around 24-28°C. A gradient allowing them to choose warmer or cooler areas is recommended.
  • Humidity: Moderate humidity around 50-70% is likely appropriate. They are associated with trees in savannah environments, so they probably tolerate drier conditions than rainforest species.
  • Diapause: No, as a tropical species from East Africa, they do not require a hibernation period. Keep them at stable warm temperatures year-round.
  • Nesting: In the wild, they nest in trees and woody vegetation. In captivity, they do well in Y-tong (AAC) nests, plaster nests, or naturalistic setups with wood or cork bark. They prefer tight, enclosed spaces.
• Behavior: Crematogaster ants are known for their distinctive heart-shaped gaster that they raise in a defensive display when threatened. They are generally active foragers and will explore their outworld readily. Workers are small (3-5.5mm) so escape prevention should be good, they can still fit through small gaps. They are not particularly aggressive toward keepers but will defend their nest if provoked. They use chemical trails when foraging. Like other Myrmicinae in the Crematogastrini tribe, they use a smear defense mechanism where they wipe venom onto enemies rather than stinging.
• Common Issues: small size means escape prevention must be good despite not being extreme escape artists, limited species-specific information means you may need to experiment with care conditions, tropical species may decline if kept too cool, wild-caught colonies may have parasites or diseases from their native range

Housing and Nest Setup

Crematogaster tenuipilis can be kept in various nest types that provide secure, enclosed spaces. Y-tong (AAC) nests work well because they offer dark, tight chambers that these ants prefer. Plaster nests are another good option, they help maintain stable humidity. If using a naturalistic setup, include pieces of cork bark or small wood branches for them to nest in. Since they are tree-associated ants, adding some vertical elements or branches to the outworld can make them feel more at home. Test tubes can work for founding colonies but may need to be moved to a more permanent nest as the colony grows. ^[2]

Feeding and Diet

Based on typical Crematogaster behavior, these ants are omnivorous and will accept both sugar sources and protein. Offer sugar water, honey, or diluted maple syrup as a constant carbohydrate source. For protein, provide small insects like fruit flies, small mealworms, or cricket pieces. They are small ants, so prey items should be appropriately sized. They may also tend aphids for honeydew if you keep them in a setup with plants. Feed protein every few days, removing any uneaten prey after 24 hours. ^[2]

Temperature and Heating

As a tropical East African species, Crematogaster tenuipilis prefers warm conditions. Aim for temperatures around 24-28°C during the active season. A slight temperature gradient in the nest area allows the ants to regulate their own conditions. You can achieve this by placing a heating cable or mat on one side of the nest. Avoid temperatures below 20°C for extended periods, as this species is not adapted to cool conditions. Room temperature in a warm home may be sufficient, but monitor colony activity to ensure they are thriving.

Behavior and Temperament

Crematogaster ants get their common name Acrobat Ants from their ability to raise their heart-shaped gaster over their head when threatened. Workers are active and will readily explore their outworld to find food. They are not typically aggressive toward humans but will defend their nest vigorously if disturbed. Their small size (3-5.5mm) means they can squeeze through small gaps, so check that your setup has no cracks or gaps larger than about 1mm. They use chemical pheromone trails when foraging, so you may notice them establishing paths to food sources. As Myrmicinae in the Crematogastrini tribe, they possess a modified stinger used to smear venom onto attackers rather than pierce flesh. ^[2]

Colony Development

Colony development specifics are unstudied for this species. A founding queen will seal herself into a small chamber and lay eggs, raising the first workers on her own. The first workers will be smaller than normal workers but will begin foraging to support further growth. Since this species has limited documented history in captivity, observe your colony's behavior and adjust conditions as needed.

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