Camponotus jejuensis

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to southern Korea, specifically Jeju Island (Cheju-do) and Huksando Island. They appear to be a coastal/island species found in the Palaearctic region ^[1]. The original specimens were collected from coastal areas in late summer.
• Colony Type: Unconfirmed, likely single-queen (monogyne) like most Camponotus species, but colony structure has not been studied.
• Size & Growth:
  • Queen: Size data unavailable, no documented queen measurements exist for this species.
  • Worker: Up to 3.3mm ^[1].
  • Colony: Unknown, no colony size data exists. Based on related small Camponotus species, estimated up to several hundred workers.
  • Growth: Unknown, no development data exists. Likely moderate like other Camponotus.
  • Development: Estimated 6-10 weeks based on typical Camponotus development at room temperature. (No direct development data exists for this species. Related Myrmentoma species in Korea suggest a spring-to-summer growth cycle with winter diapause.)
• Antkeeping:
  • Temperature: Keep at room temperature, roughly 20-24°C. A slight gradient to 25°C on one side is beneficial. Korean temperate species can tolerate cooler conditions down to 15-18°C during winter rest.
  • Humidity: Moderate humidity around 50-60%. These appear to be coastal/island ants, so they likely tolerate some moisture but avoid waterlogged conditions. Provide a water tube as usual.
  • Diapause: Yes, as a Korean temperate species, they will need a winter rest period. Reduce temperature to 10-15°C for 2-3 months during winter, roughly November through February in the Northern Hemisphere.
  • Nesting: Use standard Camponotus setups, test tubes for founding, then transition to Y-tong (AAC), plaster, or soil nests. Their tiny worker size (3.3mm) means chambers should not be overly large. They likely nest under stones or in rotting wood in the wild based on typical Myrmentoma preferences.
• Behavior: No specific behavioral observations exist for this species. Based on genus traits, expect typical Camponotus behavior: moderate activity levels, workers that forage for honeydew and small insects, and a generally non-aggressive temperament toward keepers. Their tiny size makes escape prevention important, they can squeeze through small gaps. They lack a functional sting but can bite and spray formic acid.
• Common Issues: no documented biology means you're pioneering their care, expect a learning curve., tiny worker size creates escape risk, use fine mesh barriers and check for gaps., winter diapause appears necessary but exact requirements are unknown, monitor colony during hibernation., growth rate is unconfirmed, slow development may frustrate beginners., no confirmed diet acceptance data exists, start with standard ant foods and adjust based on acceptance.

Housing and Setup

For founding colonies, use a standard test tube setup with a water reservoir. The queen will seal herself into a chamber if she chooses, this is normal claustral behavior. Once you have 20-30 workers, consider moving to a small formicarium. A Y-tong (AAC) nest works well for small Camponotus species, or you can use a plaster nest with appropriately sized chambers. Avoid nests with large, open spaces, these tiny ants feel safer in snugger quarters.

Escape prevention is critical due to their small size. Check all connections, use fine mesh on any ventilation, and apply fluon or barrier gel around the outworld. A small outworld relative to the nest size helps workers find food more easily.

Feeding and Diet

No specific feeding observations exist for this species. Based on typical Camponotus diet, offer sugar water or honey constantly, they need carbohydrates for energy. For protein, offer small insects like fruit flies, pinhead crickets, or mealworm pieces. Since workers are only 3.3mm, prey items should be appropriately sized.

Start with sugar water and small protein items, then observe what the colony actually accepts. Remove uneaten food after 24-48 hours to prevent mold. Related Korean Camponotus species readily accept both sugar and protein sources.

Temperature and Seasonal Care

Keep the colony at room temperature, roughly 20-24°C year-round with a slight gradient if possible. During the active summer season, they can handle temperatures up to 25-27°C. As a Korean endemic from a temperate climate, they require a winter diapause period.

From roughly November to February, reduce temperatures to 10-15°C. This simulates winter in their native habitat. Do not feed during deep hibernation, but ensure they have access to water. A slight cool period is important for their annual cycle, colonies that are kept warm year-round may have shortened lifespans or poor brood development.

Colony Development and Growth

Since nothing is documented about their founding behavior, here's what to expect based on typical Camponotus: the claustral queen will remain sealed in her chamber for several weeks, living off her stored fat reserves. She lays eggs, and these develop through larvae and pupae into her first workers (nanitics).

First workers will be smaller than mature workers. Expect 6-10 weeks from egg to first worker at optimal temperature (around 22-24°C). After that, growth is gradual, small Camponotus colonies typically reach several hundred workers over 1-3 years. Be patient, this species is not a fast grower, and documented growth data simply doesn't exist.

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