Cephalotes supercilii

Quick Summary

• Difficulty: Unknown
• Origin & Habitat: Native to the Neotropical region, Argentina and Ecuador ^[1]. Natural habitat specifics are unconfirmed, but Cephalotes species typically nest in hollow twigs, stems, or arboreal cavities in forest environments.
• Colony Type: Unconfirmed, colony structure has not been documented for this species. Most Cephalotes species form single-queen colonies, but this has not been verified for C. supercilii.
• Size & Growth:
  • Queen: 9.06mm ^[1]
  • Worker: 4.48-4.52mm ^[1]
  • Colony: Unknown, no colony size data exists for this species
  • Growth: Unknown
  • Development: Unconfirmed, no development data exists for this species. (Development timeline is unstudied.)
• Antkeeping:
  • Temperature: Unconfirmed for this species. Start around 22-26°C and observe colony activity. Most Cephalotes species prefer warm, stable conditions typical of tropical environments.
  • Humidity: Unconfirmed, provide moderate humidity with a moisture gradient. Cephalotes species typically prefer humid arboreal conditions.
  • Diapause: Unknown, no seasonal data exists. Given the tropical distribution, hibernation is likely not required.
  • Nesting: Cephalotes species naturally nest in hollow twigs, stems, and arboreal cavities. In captivity, they do well in Y-tong (AAC) nests, plaster nests with narrow chambers, or naturalistic setups with hollow twigs/branches. They prefer tight-fitting chambers scaled to their body size.
• Behavior: Temperament is unconfirmed for this species, but Cephalotes in general are not aggressive and rely on their defensive head-plating rather than stinging. They are slow-moving and docile. Escape prevention should be moderate, workers are around 4.5mm so standard barriers work well. They are arboreal foragers and may be less active on the ground.
• Common Issues: biology is completely unstudied, no captive care information exists for this species, colony structure unknown, may be single-queen or have ergatoid replacement reproductives, development timeline unconfirmed, escape risk is moderate due to 4.5mm worker size, wild-caught colonies may have unknown parasites or diseases

Species Identification and Appearance

Cephalotes supercilii is a distinctive small ant species belonging to the fiebrigi clade. Workers measure 4.48-4.52mm with a broad head that is slightly wider than long. The most diagnostic feature is the long, pointed hairs extending from the sides of the frontal carinae, these ear-like structures on the front of the head give the species its name (supercilium means 'eyebrow' in Latin). The body is black with a lighter gaster and legs that range from yellowish to light brown. The mesosoma features several pairs of spines and teeth along the sides, and workers have distinctive petiolar spines that curve backward. Queens are significantly larger at 9.06mm and possess yellow spots near the posterior border of the first gaster segment, a feature not present in workers. The species was first described by De Andrade in 1999 based on specimens collected from Rosario, Argentina. ^[1]

Distribution and Biogeography

Cephalotes supercilii is known from two countries in the Neotropical region: Argentina and Ecuador. The type locality is Rosario, Argentina, where the holotype worker and paratype queen were collected. The species belongs to the fiebrigi clade, a group of Cephalotes species distributed primarily in southern South America. The exact habitat preferences within these countries are not documented, but Cephalotes species in general are associated with forest environments where they nest in arboreal cavities. ^[1]

Nest Preferences and Housing

While specific nesting behavior is unconfirmed for C. supercilii, Cephalotes species are known to nest in hollow twigs, stems, and arboreal cavities in their natural habitat. In captivity, they adapt well to Y-tong nests with chambers scaled to their body size, or plaster nests that maintain humidity. Naturalistic setups with hollow twigs or bamboo sections also work well and more closely mimic their natural arboreal nesting preferences. The nest should have tight-fitting chambers, Cephalotes prefer snug spaces where they can retreat and feel secure. Avoid large, open spaces that might cause stress.

Feeding and Diet

Feeding requirements for C. supercilii are unconfirmed. Cephalotes belong to the tribe Attini (fungus-growing ants), but many species can be maintained on a standard ant diet. Offer sugar sources like honey water or sugar water, and protein sources like small insects. Some Cephalotes species cultivate fungus, but they can often be maintained on a standard ant diet. Always provide fresh water.

Temperature and Seasonal Care

Specific temperature requirements for C. supercilii are not documented in scientific literature. Given their distribution in Argentina and Ecuador (tropical to subtropical regions), they likely prefer warm conditions in the range of 22-28°C. A slight temperature gradient allows the colony to self-regulate. Regarding diapause or hibernation, no data exists. The tropical distribution suggests they may not require a true hibernation.

Behavior and Defense

The specific behavior of C. supercilii is unstudied, but Cephalotes species in general are known for their unique defensive behavior, they can tuck their head deep into their pronotum, exposing the tough plate like a turtle's shell, which gives them their common name. They are not aggressive. Their primary defense is the armored head and pronotum. Workers are relatively slow-moving compared to many other ants. They are arboreal foragers in nature, so they may prefer foraging in the upper portions of their enclosure. They are not known for being escape artists, but standard barriers should still be used due to their small size.

Frequently Asked Questions

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References