Boltonopone soror

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Equatorial Africa including Ghana, Ivory Coast, Cameroon, Gabon, Congo, Kenya, Uganda, and Tanzania. Found in tropical forests and acacia woodland habitats, typically nesting in rotten logs on the ground at elevations from 1000-1800m ^[3][4].
• Colony Type: Colony structure is unconfirmed. Queens are similar in size to workers, showing limited size divergence typical of Ponerinae ^[1].
• Size & Growth:
  • Queen: 8.60-10.10 mm ^[3][4]
  • Worker: 8.65-11.10 mm ^[3][4]
  • Colony: Unknown, colony size data not documented in research
  • Growth: Moderate
  • Development: Estimated 8-12 weeks based on related Ponerinae species at 24-28°C (Development timeline is not directly studied for this species. Estimates based on typical Ponerinae development patterns.)
• Antkeeping:
  • Temperature: Keep at 24-28°C. This species comes from tropical African habitats where temperatures are consistently warm year-round. A heating cable on one side of the nest creates a gradient allowing ants to regulate their temperature ^[3][4].
  • Humidity: Keep substrate moderately moist. In their natural habitat, they nest in rotten logs and leaf litter in tropical forests, aim for damp but not waterlogged conditions. Provide a water tube for drinking water.
  • Diapause: No, this is a tropical species that does not require hibernation. Maintain warm temperatures year-round ^[3][4].
  • Nesting: Provide a naturalistic setup with rotten wood pieces or a Y-tong/plaster nest with chambers scaled to their medium-large size. They naturally nest in decaying wood on the forest floor. A humid nest environment is essential ^[3][4].
• Behavior: Workers are active foragers that search for prey on the forest floor and vegetation. They use tandem running, where one worker leads another to food sources, to recruit nestmates ^[3][4]. This is a predatory ponerine species with a potent sting. Workers are moderately aggressive and will defend the colony. They are primarily nocturnal to diurnal, with workers observed foraging in early morning and late afternoon. Males are nocturnal and attracted to light ^[3][4]. Escape prevention is moderate, their medium size means standard barriers work well, but check for gaps regularly.
• Common Issues: tropical species requires warm temperatures year-round, cold stress can kill colonies, predatory diet means they need live protein regularly, sugar alone is insufficient, humidity must be maintained, dry conditions cause colony decline, wild-caught colonies may have parasites from their native range, slow founding means colonies take time to establish, patience required

Housing and Nest Setup

Boltonopone soror naturally nests in rotten logs and decaying wood on the tropical forest floor. For captive care, a naturalistic setup works best, provide a layer of moist substrate (coco fiber or soil mix) with pieces of rotting wood or bark for them to nest in. Alternatively, a Y-tong or plaster nest with appropriately sized chambers works well. The nest area should be humid but not waterlogged. Provide an outworld area for foraging where you can offer food. Use a test tube setup for the founding colony with a water reservoir. Because they are medium-sized ants (around 9-11mm), ensure the nest chambers are spacious enough for the queen and brood. Escape prevention should be standard, these ants are not particularly small or agile, but Ponerinae ants can be determined climbers, so apply fluon to edges as needed. ^[3][4]

Feeding and Diet

As a Ponerinae ant, B. soror is predatory and needs a protein-rich diet. In the wild, workers hunt and scavenge for small invertebrates. In captivity, offer live prey such as small crickets, mealworms, fruit flies, and other small insects. They will also scavenge on dead insects. Sugar sources like honey water or sugar water should be available, though they may not accept these as readily as some ants. Feed protein prey 2-3 times per week, and keep a constant sugar water supply. Remove uneaten prey after 24-48 hours to prevent mold. The hunting behavior has been studied in related species, showing they are active predators that pursue prey actively ^[5].

Temperature and Seasonal Care

This is a tropical species from Equatorial Africa, maintain warm temperatures year-round. The ideal range is 24-28°C (75-82°F). Temperatures below 22°C can cause stress and slow brood development, while temperatures above 30°C may be harmful. Use a heating cable on one side of the nest to create a thermal gradient. Do not attempt hibernation or cooling periods, this species has no diapause requirement. In their natural habitat (tropical forests and acacia woodland in Kenya, Ghana, Cameroon, etc.), temperatures remain consistently warm throughout the year. Monitor colony behavior, if workers cluster away from the heated area, reduce temperature, if they are overly active and restless, conditions may be too warm. ^[3][4][5]

Behavior and Colony Dynamics

Workers of B. soror are active foragers that use tandem running to recruit nestmates to food sources. This means one worker leads another by direct contact, a common recruitment behavior in Ponerinae ants ^[3][4]. They are primarily ground-dwelling and can be found foraging on fallen logs, tree trunks, and leaf litter. Workers are moderately aggressive and will defend the colony with their sting if threatened. This species shows high resistance to raids from the invasive Pheidole megacephala, indicating they have effective defensive behaviors ^[2]. Males are nocturnal and attracted to artificial light, which is useful for collection but means you may see male alates at night near light sources. Queens are similar in size to workers, showing the limited size dimorphism typical of Ponerinae ^[1].

Growth and Development

The development timeline for B. soror has not been directly studied. Based on related Ponerinae species, expect 8-12 weeks from egg to first worker (nanitic) at optimal temperatures of 24-28°C. Queens lay eggs after mating and will seal themselves in a chamber to raise the first brood. The first workers (nanitics) will be smaller than mature workers. Colony growth is moderate, Ponerinae colonies typically reach dozens to a few hundred workers over several years. Be patient during the founding stage, as disturbing the queen can cause her to eat the brood or abandon the nest. Once workers emerge, the colony will grow steadily as more brood is raised.

Legal and Ethical Considerations

Boltonopone soror is native to Equatorial Africa. If you keep this species, ensure you obtained your colony legally from a reputable supplier or breeder. Never release this or any non-native ant species outside their native range, they could become invasive and harm local ecosystems. This species has not been documented as invasive elsewhere, but responsible antkeeping means preventing accidental establishment in non-native areas. Check your local regulations regarding ant keeping, as some jurisdictions have restrictions on keeping certain species.

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