Stigmatomma quadratum

Quick Summary

• Difficulty: Unknown, likely Expert
• Origin & Habitat: Tropical forests of Vietnam and Thailand in the Indomalaya region ^[2]. The type locality is the Poulo Dama (Phu Quoc) archipelago in the Gulf of Thailand ^[1].
• Colony Type: Unconfirmed. Colony structure and queen number have not been documented.
• Size & Growth:
  • Queen: Unknown. No published measurements are available for queens, only the worker holotype is known ^[1].
  • Worker: Unknown. The only described specimen is the holotype worker, but no body size measurements were provided in the original description ^[1]. No other published data exist.
  • Colony: Unknown.
  • Growth: Unknown.
  • Development: Unknown. No data on development time are available. (Development timeline is completely unstudied for this species.)
• Antkeeping:
  • Temperature: Based on its tropical origin (Vietnam, Thailand), warm temperatures around 24-28°C are likely suitable. Avoid temperatures below 20°C. A gentle thermal gradient can help the colony thermoregulate, but precise requirements are unconfirmed.
  • Humidity: High humidity is recommended given the tropical habitat. Keep the nest substrate consistently moist but not waterlogged. Exact humidity levels are unknown.
  • Diapause: Unknown, likely not required. As a tropical species, it probably does not experience cold winters in its native range.
  • Nesting: Unknown. Based on subfamily patterns, they likely nest in soil or rotting wood in shaded, damp areas. In captivity, provide a dark, humid nest chamber with ample moisture.
• Behavior: Stigmatomma quadratum has a functional stinger, as typical for the subfamily Amblyoponinae. Workers are likely non-aggressive toward humans but will defend the nest if threatened. Escape risk is unknown, use standard barriers (Fluon, talc) as a precaution.
• Common Issues: limited availability, this species is rarely available in the antkeeping hobby and is not documented in captivity., specific dietary requirements, they are likely predatory and need live prey, but exact preferences are unknown., high humidity needs, improper humidity will stress the colony., poorly documented captive care, no husbandry information exists for this species., tropical temperature requirements, cannot tolerate cool temperatures for extended periods.

Temperature and Care

As a tropical species from Vietnam and Thailand, Stigmatomma quadratum likely requires warm temperatures. Keep the nest area at 24-28°C, based on general tropical conditions. Use a heating cable on one side of the nest to create a gentle thermal gradient, but avoid overheating. Avoid sudden drops below 20°C, which could stress the colony. If your room temperature is cooler, use a small heating mat or cable on top of the nest (not underneath) to prevent drying out the nest substrate too quickly. These general guidelines are extrapolated from the species' origin, no specific data exist ^[1][2].

Humidity and Nesting

Given the tropical forest habitat, high humidity is important. Keep the nest substrate consistently moist but not waterlogged. A plaster nest or a naturalistic setup with deep, damp soil is recommended. Provide dark, enclosed chambers, this species will avoid bright areas. A test tube with water reservoir can work for founding, but monitor for mold. Exact humidity levels are unknown, but aim for a humid environment typical of tropical forests ^[2].

Feeding and Diet

Stigmatomma quadratum is predatory, like other Amblyoponinae. They likely hunt small arthropods. Offer appropriately sized live prey such as small crickets, fruit flies, or mealworms. Prey should be no larger than the ant's head. The subfamily is known for 'dracula ant' behavior where workers feed on hemolymph from their own larvae, but this has not been confirmed for Stigmatomma quadratum. Provide protein-rich food 2-3 times per week and remove uneaten prey within 24 hours. Nutritional preferences are unstudied ^[2].

Behavior and Temperament

Workers are equipped with a functional stinger, typical of Amblyoponinae. They are not known to be aggressive toward keepers but will defend the nest if disturbed. The sting can be painful. Escape risk is unknown because the species' climbing ability has not been documented, use standard barrier methods (Fluon, talc) as a precaution. Behavioral patterns such as foraging time or social structure are not recorded ^[1][2].

Colony Founding

Colony founding behavior is completely unknown for this species. There are no observations or published accounts. Until more information becomes available, any details about founding type (claustral or semi-claustral) or queen behavior remain speculative ^[1][2].

Frequently Asked Questions

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References