Cataglyphis hannae

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Tunisia and Morocco in the Palaearctic region. Lives in oases at the edge of irrigated fields, on sandy ground under Eucalyptus trees or near lucerne fields. The distribution follows the southern foothills of the Atlas mountains in the transition zone from Mediterranean to desert regions ^[1][3].
• Colony Type: Social parasite (inquiline), lives permanently within Cataglyphis bicolor colonies. The species cannot form independent colonies and requires a host colony to survive. Queens are small compared to the host ^[2][4].
• Size & Growth:
  • Queen: Small, alitrunk (middle body section) under 2 mm ^[1]. Total length not documented.
  • Worker: Unknown, this species does not produce its own workers ^[2].
  • Colony: Unknown, likely small, only reproductive individuals produced.
  • Growth: Unknown
  • Development: Unknown, this species does not produce its own worker caste. All brood care is done by host workers ^[2]. (The inquiline does not produce workers. Host workers raise any parasite brood.)
• Antkeeping:
  • Temperature: Based on the desert oasis habitat, keep warm (25-30°C) with a temperature gradient ^[1].
  • Humidity: Low to moderate, desert species. Keep the nest relatively dry with a small water source ^[1].
  • Diapause: Likely some seasonal slowdown in winter, though not well-documented. Reduce feeding and temperature slightly during winter.
  • Nesting: Cannot be kept independently. Requires an established Cataglyphis bicolor colony as host. The inquiline queens live within the host nest structure.
• Behavior: Inquiline social parasite. Queens and males live entirely within host nests and show no aggression toward host workers. Host workers actively feed the parasite individuals. The species has completely lost the ability to forage or care for its own brood. In captivity, C. hannae individuals will be fed by C. bicolor workers and do nothing for themselves ^[1]. Escape risk is moderate, both species are medium-sized desert ants that can climb smooth surfaces.
• Common Issues: this species cannot survive without a host Cataglyphis bicolor colony, you must maintain both species, finding a legitimate source for both species is extremely difficult, they are not commonly traded, the inquiline produces no workers of its own, all brood care is done by hosts, this species is listed as Vulnerable (IUCN 2.3) ^[1], check local laws before acquiring, it may be illegal to collect in Tunisia or Morocco, maintaining two species simultaneously doubles the care complexity and resource requirements, social parasites are not suitable for beginners, this is an expert-level species

Understanding Cataglyphis hannae as a Social Parasite

Cataglyphis hannae is a true inquiline, it lives permanently inside the nest of Cataglyphis bicolor and depends on host workers for food and care ^[4]. Unlike temporary social parasites that kill the host queen, C. hannae coexists peacefully with the host colony forever. Host workers feed the parasite queens and males by regurgitation, and in return the parasite contributes nothing ^[1]. For antkeepers, this means C. hannae cannot survive without C. bicolor. This species is also listed as Vulnerable on the IUCN Red List ^[1].

Housing Requirements - The Dual Colony Challenge

Keeping Cataglyphis hannae successfully requires maintaining both the host (Cataglyphis bicolor) and the inquiline. You cannot keep C. hannae alone, they will die without host workers to feed them. The housing should allow both species to interact. Use a naturalistic setup with two connected sections: one area for the host colony to forage and nest, and a connected space where the inquiline can move among host workers. Keep the nest warm and dry, mimicking the desert oasis conditions where both species occur naturally. Provide a temperature gradient (warm zone 25-30°C with cooler areas) ^[1]. Humidity should be low, as both species are adapted to arid conditions. Use excellent escape prevention, Cataglyphis species are excellent climbers ^[1].

Feeding and Nutrition

In captivity, Cataglyphis hannae individuals will be fed directly by Cataglyphis bicolor workers, just as in the wild ^[1]. Focus your feeding on the host colony. Feed the host C. bicolor workers a varied diet including sugar water or honey for energy, and protein sources like mealworms, crickets, or other small insects. Host workers will then distribute food to the inquiline individuals. You may see host workers regurgitating food directly to C. hannae queens and males, this is normal inquiline behavior. Do not expect to see C. hannae individuals leave the nest to forage, as they never do this in nature. The host colony may need slightly more food since it is supporting two species.

Finding and Acquiring This Species

Cataglyphis hannae is extremely rare in the antkeeping hobby. It was first described in 1994 and has only been found in a few locations in Tunisia and Morocco ^[1][3]. Even finding Cataglyphis bicolor (the host) for sale is uncommon. To keep this species, you would need to locate a specialized ant vendor dealing with rare Mediterranean species, or potentially collect both species in Tunisia or Morocco (check local laws first, this species is listed as Vulnerable on the IUCN Red List ^[1]). Establishing a stable inquiline relationship in captivity is challenging and rarely attempted. For most antkeepers, this species remains a scientific curiosity rather than a realistic pet project.

Frequently Asked Questions

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References