Camponotus braunsi

Camponotus braunsi - "Dr Brauns's Sugar Ant"

Camponotus braunsi is a medium-sized African carpenter ant found across East Africa, from Mozambique north through Tanzania and Kenya to Somalia, with populations also in the Democratic Republic of Congo and Zimbabwe ^[1][2]. Workers come in two sizes: minors measure around 4.5mm while majors are nearly twice as large at about 8mm ^[1]. This species is a classic 'sugar ant', they have a strong preference for sugary liquids and are often found tending aphids or feeding on honeydew in their native savanna habitat ^[3].

What makes C. braunsi interesting is its arboreal nesting habits, unlike many ground-nesting Camponotus, this species nests in dead branches and twigs found in and around savanna trees, particularly Vachellia (acacia) species ^[1]. They are generalists when it comes to tree selection, reported on multiple Vachellia species but notably NOT inhabiting the swollen thorn domatia that some ants specialize in ^[1]. This arboreal lifestyle means they adapt well to Y-tong nests or other setups that provide wood-based nesting chambers.

Quick Summary

• Difficulty: Easy
• Origin & Habitat: East African savanna, found in Mozambique, Kenya, Tanzania, Zimbabwe, and Democratic Republic of Congo. Nests in dead branches on trees, particularly Vachellia (acacia) species in woodland areas ^[1][2].
• Colony Type: Likely monogyne (single queen) based on typical Camponotus patterns. Colony size appears modest, the largest single collection event found 17 workers on one tree ^[1].
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: Unconfirmed, estimated 12-15mm based on genus patterns for a major worker species
  • Worker: Minor workers 4.5mm, major workers 8mm total length ^[1]
  • Colony: Likely several hundred workers based on typical Camponotus colony sizes and the modest collection numbers reported
  • Growth: Moderate, typical for Camponotus
  • Development: Estimated 6-10 weeks based on typical Camponotus development at warm temperatures (Development time is inferred from genus patterns, direct measurements for this species are not available)
• Antkeeping:
  • Temperature: Keep at 24-28°C. East African origin suggests they prefer warm conditions year-round ^[1]. A heating cable on one side of the nest creates a gradient for the colony to self-regulate.
  • Humidity: Moderate humidity around 50-60%. Being arboreal-nesting, they prefer slightly drier conditions than ground-nesting species. Allow the nest to dry out between waterings.
  • Diapause: Unlikely, as a tropical/subtropical East African species, they probably do not require a true hibernation. Keep warm year-round.
  • Nesting: Y-tong (AAC) nests work well given their arboreal nature. Alternatively, a naturalistic setup with cork or wood branches. Avoid fully soil-based setups, they prefer dry, wood-based chambers.
• Behavior: Generally calm and non-aggressive for a Camponotus species. They are primarily sugar-loving and will readily take honey water, sugar water, and honeydew. Majors have the typical large head of carpenter ants but are not particularly aggressive. They are moderate escape artists, use standard barriers but they are not as tiny as some species. Foraging activity is primarily during warmer hours.
• Common Issues: colonies can stall if kept too cool, maintain warm temperatures year-round, dry nesting conditions are important, overwatering can cause fungal problems in their wood-based nests, wild-caught colonies may be difficult to establish if the queen was damaged during collection, major workers are large enough to be noticed but not aggressive, standard escape prevention is sufficient, sugar spills can attract mold in the outworld, clean up sweet spills promptly

Housing and Nest Setup

Camponotus braunsi does well in Y-tong (acrylic aerated concrete) nests, which mimic their natural arboreal habitat of dead wood and branches. The chambers should be appropriately sized, not too large for a starting colony, but with room to expand. A small outworld connected to the nest allows for foraging. Because they are arboreal nesters, avoid fully soil-based formicariums. Some keepers successfullly keep them in naturalistic setups with cork bark or actual wood branches. Ensure the nest material stays relatively dry, these ants prefer conditions that are moist in the outworld but dry in the nesting area. ^[1]

Feeding and Diet

As a 'sugar ant, ' C. braunsi has a strong preference for sweet liquids. Offer sugar water, honey water, or diluted honey constantly via a test tube feeder. They will readily take these sugar sources. For protein, offer small insects like fruit flies, small mealworms, or cricket pieces. They are not aggressive predators but will accept protein when offered. In the wild, they feed heavily on honeydew from aphids and scale insects, and have been documented feeding on dead bees in apiaries ^[3]. A varied diet with constant sugar access and occasional protein produces the best colony growth.

Temperature and Seasonal Care

Keep your colony warm at 24-28°C year-round. This species originates from East African savanna, so warmth is important for activity and brood development. A heating cable placed on one side of the nest creates a temperature gradient that allows the ants to regulate their own conditions. Unlike temperate species, they do not require hibernation or a cool period. Room temperature in most homes (20-24°C) may be slightly cool, consider adding gentle bottom heat. Brood development will slow significantly below 22°C. ^[1]

Colony Founding

A claustral queen will seal herself in a small chamber and raise the first brood alone without foraging. The queen has stored fat reserves to sustain her through the founding claustral period. After the first nanitic (first tiny workers) emerge, the colony will begin foraging in the outworld. Founding colonies should be kept in a quiet, dark location with minimal disturbance. Do not feed during the claustral phase, the queen and her first brood rely entirely on the queen's body reserves until nanitics arrive.

Behavior and Temperament

C. braunsi is a calm, non-aggressive species that makes an excellent beginner Camponotus. Workers are active foragers but not particularly defensive. The majors, while visually imposing with their large heads, rarely bite and their mandibles are more suited to carpenter work than defense. They are primarily active during warmer parts of the day in the wild. In captivity, they adjust their activity to when food is available. They are not extreme escape artists but standard barrier methods (Fluon on test tube rims, tight-fitting lids) work well. ^[1][3]

Frequently Asked Questions

References