Basiceros militaris

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Tropical Central and South America, Brazil, Ecuador, French Guiana, Guyana, Peru, Trinidad & Tobago, Venezuela ^[1]. Found in moist forested areas, typically in leaf litter or decaying wood ^[6][2].
• Colony Type: Small colonies with phenotypic plasticity, including intercastes. Potential polygyny observed with up to three dealate queens in some samples ^[1].
• Size & Growth:
  • Queen: Up to 7.40 mm ^[3]
  • Worker: 6.04-6.58 mm ^[1][3]
  • Colony: Up to 100 workers estimated ^[2]
  • Growth: Moderate, inferred from Attini patterns
  • Development: Unknown, no specific data available (Development timeline not studied, inferred to be moderate based on related species.)
• Antkeeping:
  • Temperature: Keep warm, around 24-28°C, based on tropical habitat ^[2]
  • Humidity: Keep substrate consistently moist but not waterlogged, as they inhabit moist forests ^[2]
  • Diapause: No, tropical species do not require hibernation
  • Nesting: Provide naturalistic setup with leaf litter, soil, and decaying wood, they do not excavate nests ^[2]
• Behavior: Cryptic and slow-moving, forage individually with camouflage. Predatory, hunting small arthropods. Not aggressive toward keepers, main defense is camouflage. Escape risk moderate due to small size ^[5][2].
• Common Issues: high humidity requirements can lead to mold if ventilation is poor, small colony sizes mean slow population growth, cryptobiotic behavior makes observation difficult, predatory diet requires live prey, they cannot survive on sugar alone

Housing and Nest Setup

Basiceros militaris does not excavate nests in captivity. In the wild, colonies live in pre-existing cavities in leaf litter, soil, or decaying wood ^[2]. Provide a naturalistic setup with a deep layer of moist substrate, such as soil mixed with rotting wood pieces. Include leaf litter or debris on the surface so they can cover themselves, this is essential for their cryptobiotic behavior. Use Y-tong, plaster, or soil nests with small chambers, and maintain high humidity. A water tube connected to the nest helps with drinking and humidity ^[2].

Feeding and Diet

Basiceros militaris is predatory, based on related species ^[2]. Offer small live prey such as springtails, fruit flies, and micro-arthropods. They are unlikely to accept sugar water or honey. Feed 2-3 times per week, removing uneaten prey after 48 hours to prevent mold. Prey size should match their small size ^[2].

Temperature and Humidity

As a tropical species, keep temperatures warm around 24-28°C ^[2]. Humidity should be high, with substrate consistently moist but not waterlogged, reflecting their natural moist forest habitat ^[2]. Avoid drying out or stagnant air to prevent colony death or mold.

Understanding Intercastes

Intercastes, intermediate forms between workers and queens, are common in wild colonies ^[1]. They may have ocelli or partial wing structures but are not fully developed queens. The original type specimens were intercastes, not true workers ^[1]. This is normal variation, not a deformity.

Camouflage and Behavior

Basiceros militaris is cryptobiotic, using specialized hairs to adhere soil and leaf litter for camouflage ^[5][2]. This makes them nearly invisible and helps in ambush hunting. In captivity, provide debris in the outworld for them to exhibit this behavior. Do not remove their covering, it is essential for their wellbeing ^[5][2].

Frequently Asked Questions

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References