Camponotus anningensis

Quick Summary

• Difficulty: Medium
• Origin & Habitat: This species is found in Yunnan and Sichuan provinces of southern China, in the Palaearctic region ^[1][2]. The type locality is Anning County, Yunnan, with additional records from Chongqing, Sichuan ^[3]. Based on its distribution in subtropical evergreen broadleaved forests and temperate mountainous areas, it likely inhabits forested regions at moderate elevations.
• Colony Type: Unconfirmed, likely monogyne (single queen) based on typical Camponotus patterns, but no species-specific data exists.
• Size & Growth:
  • Queen: Size unconfirmed, inferred from Camponotus genus (~10-14 mm).
  • Worker: ~4.5-5.6 mm (small and medium workers) ^[3]
  • Colony: Estimated up to several hundred workers (inferred from Camponotus patterns).
  • Growth: Moderate
  • Development: Estimated 6-10 weeks at optimal temperature (inferred from Camponotus genus). (Species‑specific development times have not been documented.)
• Antkeeping:
  • Temperature: Keep the nest area around 20-26°C. Provide a gradient so workers can choose their preferred zone. Avoid temperatures above 30°C. Yunnan and Sichuan have temperate to subtropical climates, so this species tolerates room temperature well.
  • Humidity: Moderate, provide a water tube and keep the nest substrate slightly moist but not waterlogged. Avoid overly dry conditions.
  • Diapause: Yes, likely required. This species comes from regions with distinct winters. Give a 3-4 month hibernation period at 5-10°C (November to February) to mimic the natural cycle.
  • Nesting: Likely nests in wood based on Camponotus genus patterns. In captivity, use Y‑tong (AAC), plaster, or soil nests with chambers scaled for medium‑sized workers. Test tubes work for founding, then transfer to a formicarium once the colony outgrows the tube.
• Behavior: Like most Camponotus, this species is generally calm and not aggressive toward keepers. When threatened, it sprays formic acid from the acidopore (no stinger). Workers are moderately active foragers. Escape risk is low due to their size, but standard precautions (fluon on outworld edges, tight lids) are still needed.
• Common Issues: skipping hibernation can prevent colony growth or cause queen death, always provide a cool period if you live in a temperate region., overheating above 30°C can be fatal, keep the nest away from direct sun or heat sources., wild‑caught colonies may carry mites or parasites that can wipe out a captive colony, quarantine new catches and monitor closely., test tubes must have a moisture gradient: a dry section for brood and a wet cotton plug to prevent drowning.

Appearance and Morphology

Camponotus anningensis workers are black with deep red mandibles, the basal half of the antennal scapes, and the tarsi, the rest of the legs are brownish‑black to brownish‑red. Each abdominal segment has a narrow pale yellow band along the rear edge ^[3]. The head is very convex, widest near the front, with rounded occipital corners. The antennae scape extends 1/3 to 1/2 of its length past the occipital border. The clypeus is broad and trapezoidal, without a carina, and the mandibles have five teeth ^[3]. The alitrunk (thorax) is slightly arched, with a deep promesonotal suture, and the propodeum slopes gently, there is no clear separation between the basal and declivous faces. The petiole is strongly convex on the front side and flat on the back, with a rounded apex. The gaster is medium‑sized and oval ^[3]. Body hairs are very sparse: there are a few white erect hairs on the front of the head, but the alitrunk, petiole, and legs lack erect hairs, and the abdomen has only a row of hairs on the rear margin of each segment and a few on the dorsal center ^[3].

Nest Preferences and Housing

Camponotus anningensis is thought to nest in wood, like most members of the genus. In captivity, Y‑tong (AAC), plaster, or soil nests work well. The chambers should be sized for medium workers, not too tight, not too spacious. Provide a water tube to maintain humidity, but keep part of the nest dry because carpenter ants often prefer dry areas for brood. A test tube setup is fine for a founding queen, but once the colony reaches about 20-30 workers, move them into a formicarium. When connecting the nest to an outworld, use a short tube to limit escapes.

Feeding and Diet

Like most Camponotus, these ants are omnivorous. Offer protein 2-3 times a week: small insects like mealworms, crickets, or roaches. Provide a constant sugar source, sugar water, honey diluted 1:3,or maple syrup, in a separate dish. Remove uneaten prey after 24-48 hours to prevent mold. Fresh fruit can be given occasionally. Colonies with workers forage actively and will find food within a few hours.

Temperature and Seasonal Care

Keep the nest area at 20-26°C, with a gradient so workers can regulate. Room temperature (~22°C) is usually fine. Avoid temperatures above 30°C, which can kill the colony. This species likely requires a winter diapause (hibernation). From November to February, move the colony to a cooler spot (5-10°C), a basement, garage, or refrigerator works. Gradually lower and raise the temperature over a week to avoid shocking the ants. Without this rest period, the queen may stop laying eggs and the colony may decline. ^[1]

Behavior and Temperament

Camponotus anningensis is a calm, manageable species. Workers rarely try to escape and are not aggressive toward keepers. When threatened, they spray formic acid from the acidopore (they have no stinger). They are moderately active foragers and will search for food during the day. While not tiny, they can still squeeze through small gaps, fluon or a thin layer of oil on the outworld rim is recommended. They are not prone to panicking, and established colonies settle into stable routines.

Frequently Asked Questions

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References