Pheidole cataphracta

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Tropical forests of Colombia (Valle del Cauca) and Costa Rica, documented from várzea (floodplain) and terra firme (non-flooded) forest habitats ^[2][1][3]
• Colony Type: Unknown, no data on queen number or social structure
• Size & Growth:
  • Queen: size data unavailable
  • Worker: size data unavailable
  • Colony: Unknown
  • Growth: Unknown
  • Development: Unknown, no data available (Tropical Pheidole species typically develop in 6-10 weeks at warm temperatures, but this is unconfirmed for this species)
• Antkeeping:
  • Temperature: Based on tropical lowland origin, likely needs warm stable temperatures around 24-28°C, but specific requirements are unconfirmed. Start at 25°C and adjust based on colony activity ^[3][4]
  • Humidity: High humidity needed, keep nest material consistently damp based on their várzea and terra firme forest habitat ^[3]
  • Diapause: Likely not required, tropical lowland species typically remain active year-round without winter rest ^[4]
  • Nesting: Unknown, no data on natural nesting habits
• Behavior: Unknown temperament, minors are extremely small (head width ~0.46mm) creating extreme escape risk ^[1]. You must use the finest mesh available and reliable barrier layers like Fluon.
• Common Issues: escape prevention is critical, minors are tiny enough to slip through gaps in standard mesh or loose-fitting lids., complete lack of captive care data means all care parameters are experimental and colony failure is likely., desiccation risk is high due to small body size and tropical humidity requirements., wild collection is strongly discouraged due to extremely limited known range and scientific rarity.

Rarity and Scientific Status

This species represents one of the most data-poor ants in the hobby. Described by Wilson in 2003 from only two collections in Colombia's Valle Department, it has since been recorded in Costa Rica but remains known from fewer than a handful of specimens worldwide ^[4][2][1]. AntWiki explicitly notes that nothing is known about the biology of Pheidole cataphracta, meaning scientists have never observed their nesting behavior, diet, colony structure, or reproductive habits ^[4]. For antkeepers, this means you would be keeping a species that has likely never been maintained in captivity before, with no established care parameters. The extremely restricted known range in Colombia makes wild collection ethically questionable, as removing even one colony could represent a significant portion of the known population.

Morphology and Identification

You can identify these ants by their distinctive armor. The name cataphracta means fully armored, referring to the heavy pitting (foveolate sculpturing) covering the body and the extremely long propodeal spines ^[1]. In major workers, the spines are about as long as the propodeum itself ^[1]. Majors show strong head sculpturing with ridges everywhere except the frontal triangle and middle of the face, plus a sub-angled shoulder ^[1]. Minors lack the ridged head but share the heavy pitting and have a blunt, protruding shoulder angle ^[1]. The color pattern helps: majors are yellow with dark reddish-yellow heads, while minors are uniform medium yellow ^[1].

Natural Habitat and Climate

The species inhabits tropical forests in the Neotropics. In Colombia, they come from Valle del Cauca, specifically from the Buenaventura area near the Pacific coast ^[4][2]. Records show them living in both várzea (seasonally flooded riverine forests) and terra firme (non-flooded upland forests), indicating they handle consistently wet tropical conditions ^[3]. This suggests they need high humidity and stable warm temperatures year-round, without the dry seasons or cold periods that trigger hibernation in temperate ants.

Captive Care Guidelines (Experimental)

Since no captive care data exists, you must extrapolate from general Pheidole keeping while accepting high failure risk. Keep them warm, around 24-28°C, with high humidity (damp nest material). Use extremely fine mesh or barriers to contain the tiny minors, as their head width is only ~0.46mm ^[1]. Feed tiny prey like springtails or fruit flies, plus sugar water, but accept that dietary preferences are unknown. Small test tubes or mini-hearth style nests with very small chambers would suit their size. Watch for desiccation constantly, tiny ants dehydrate fast.

Conservation and Collection Ethics

Given that scientists have documented this species from only two locations in Colombia, you should not attempt to collect them from the wild. The Valle del Cauca population appears extremely restricted, and removing colonies for the pet trade could harm the species before scientists even understand its basic biology. If you somehow acquire these ants (for example, through scientific exchange), prioritize breeding and documentation over display, as captive populations may be the only insurance against extinction in the wild. ^[4][2]

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