Pheidole puttemansi

Pheidole puttemansi

Pheidole puttemansi is a small ant species belonging to the fallax group within the genus Pheidole. Major workers have a head width of 1.56mm and feature a distinctive smooth and shiny posterior section of the head, with the lateral portions showing rugoreticulate sculpturing. The body is a uniform light reddish brown in majors and medium reddish brown in minors. The species was originally described as a subspecies of Pheidole fallax before being elevated to full species status in 2003. It is named after Hubert Puttemans, the collector of the type specimen from Rio de Janeiro, Brazil ^[1].

This species inhabits the Neotropical region, with documented populations in Brazil (specifically Rio de Janeiro and Pará states), French Guiana, and northern Argentina. Research shows it thrives in Amazonian floodplain forests and agricultural areas like cocoa plantations, where it lives primarily in leaf litter ^[2][3]. As a tropical litter-dwelling ant, it occupies a ecological niche that makes it well-suited to humid, shaded environments with abundant organic matter.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Neotropical region, Brazil (Rio de Janeiro, Pará), French Guiana, and northern Argentina. Found in Amazonian floodplain forests and cocoa plantations, living in leaf litter ^[2][3][1].
• Colony Type: Colony structure is unconfirmed. Most Pheidole species are single-queen (monogyne) colonies, but this has not been directly documented for P. puttemansi.
• Size & Growth:
  • Queen: Unknown, no queen measurements available for this species
  • Worker: Major workers: 1.56mm head width (HW). Minor worker size unmeasured but typical for genus ^[1].
  • Colony: Unknown, no colony size data available
  • Growth: Unknown, no development data exists for this species
  • Development: Unconfirmed, no direct development studies exist. Based on typical Pheidole patterns in tropical species, estimate 4-8 weeks at optimal temperature. (This is a rough estimate based on genus-level data. Specific development times for this species have not been studied.)
• Antkeeping:
  • Temperature: As a tropical species from Amazonian Brazil, aim for warm conditions around 24-28°C. Room temperature (22-25°C) is likely suitable. Avoid temperatures below 20°C for extended periods.
  • Humidity: High humidity is essential, these are litter-dwelling ants from humid tropical forests. Keep nest substrate consistently moist but not waterlogged. Provide a water tube and ensure the nest area maintains humidity above 60%.
  • Diapause: Unlikely, as a tropical species from Amazonia, they probably do not require a true diapause. However, they may show reduced activity during cooler periods.
  • Nesting: In the wild they live in leaf litter and soil. For captivity, a small test tube setup works well for founding colonies. Once established, a naturalistic setup with moist substrate (like a mixture of soil and organic material) or a small formicarium with tight chambers scaled to their tiny size is appropriate. Avoid large, open spaces.
• Behavior: Behavior is unstudied, but Pheidole species typically have distinct minor and major workers. Minors handle foraging, nursing, and general colony tasks while majors defend the colony and help process large food items. They are likely seed-harvesters and may also consume small insects, typical of the genus. As small ants, they pose minimal sting risk to humans, their stingers are present but too small to penetrate human skin effectively. Escape prevention is important due to their small size, use fine mesh barriers and tight-fitting lids.
• Common Issues: escape prevention is critical, their tiny size means they can squeeze through standard gaps easily, lack of biological data means care is largely inferred from genus patterns, monitor colony behavior and adjust conditions accordingly, wild-caught colonies may carry parasites that can devastate captive colonies, overheating is a risk, keep them warm but avoid direct heat sources that could dry out the nest, poor ventilation can lead to mold growth in the humid conditions they require

Nest Preferences and Housing

In their natural habitat, Pheidole puttemansi lives in leaf litter and upper soil layers of tropical forests. They are not deep-nesting ants but rather occupy the surface and near-surface layers where humidity remains high and organic matter is abundant. For captive care, a simple test tube setup works well for founding colonies, fill a test tube halfway with water, plug with a cotton ball creating a water reservoir, and place the queen in a dark area. The queen will seal herself into a chamber if given soil or a founding chamber.

Once the colony reaches 20-30 workers, you can transition to a small formicarium. A naturalistic setup with a mixture of soil and coco fiber works well, or you can use a small acrylic nest with chambers appropriately sized for their tiny body size. The key is maintaining consistent moisture in the substrate while ensuring good ventilation to prevent mold. Avoid tall, open spaces that can stress these small litter-dwelling ants, they prefer tight, enclosed spaces that mimic their natural leaf litter environment. ^[1][3]

Feeding and Diet

Pheidole species are typically omnivorous with a strong tendency toward seed harvesting, though they also consume small insects and tend aphids for honeydew. Since specific feeding behavior has not been documented for P. puttemansi, follow typical Pheidole care. Offer a varied diet including small protein sources like fruit flies, tiny crickets, mealworms, or other small insects. Sugar sources are also important, a drop of honey water or sugar water should be accepted.

For minor workers, offer small food items they can handle. Major workers have specialized roles in food processing, they can handle larger items that minors cannot manage. Remove uneaten food after 24-48 hours to prevent mold. Feed protein-rich foods 2-3 times per week, and keep a sugar source available at all times. Observe your colony's preferences and adjust accordingly, some colonies favor certain foods over others.

Temperature and Seasonal Care

As a tropical species from the Amazon basin, P. puttemansi requires warm, stable temperatures. Aim for 24-28°C during the active season. Room temperature in most homes (22-25°C) should be suitable, but monitor colony activity, if workers become sluggish, consider providing gentle warming via a heating cable on one side of the nest. Place the heating element on top of the nest, not underneath, to avoid excessive drying.

Unlike temperate species, this ant likely does not require a true hibernation or diapause period. However, they may naturally reduce activity during cooler months in the wild. In captivity, maintain consistent temperatures year-round. Avoid temperature fluctuations and keep them away from air conditioning vents, drafts, or windows that get cold at night. The key is stability, sudden temperature drops can stress or kill colonies. ^[2]

Understanding the Knowledge Gap

Pheidole puttemansi is a poorly studied species. The scientific literature provides essentially no biological data, we know only its distribution, physical description, and that it lives in leaf litter in tropical forests. This means much of what we recommend is inference from genus-level knowledge and care of related species.

This has practical implications for keepers. Your observations are valuable, by keeping this species successfully, you contribute to our understanding of their care requirements. Pay attention to how your colony responds to different conditions. If they thrive at a certain temperature or prefer certain foods, this information helps both you and the antkeeping community. The care recommendations here are starting points, not definitive requirements. Adjust based on your specific colony's behavior and needs. ^[1]

Frequently Asked Questions

References