Pheidole dinophila
- Scientific Name
- Pheidole dinophila
- Tribe
- Attini
- Subfamily
- Myrmicinae
- Author
- Wilson, 2003
- Distribution
- Found in 1 countries
Pheidole dinophila Overview
Pheidole dinophila is an ant species of the genus Pheidole. It is primarily documented in 1 countries , including Argentina. Detailed taxonomic data and occurrence records can be further explored via authoritative databases such as AntWeb or the Global Biodiversity Information Facility (GBIF).
Pheidole dinophila
Pheidole dinophila is a tiny commensal ant species native to Brazil, found in the states of Mato Grosso do Sul and São Paulo. The species gets its name 'dinophila' meaning 'lover of the terrible' because it lives exclusively in nests of the giant ant Dinoponera grandis, one of the largest ants in the world. This makes P. dinophila unusual among Pheidole species, which typically nest independently. Majors (soldiers) reach about 1mm head width and have a dark reddish-brown body, while minors are smaller at 0.6mm head width with medium reddish-brown coloring. The species was described by E.O. Wilson in 2003 and remains one of the less-studied Pheidole species due to its specialized lifestyle.
Quick Summary
- Difficulty: Expert
- Origin & Habitat: Brazil, found in Mato Grosso do Sul (near Campo Grande) and São Paulo (Itirapina near Rio Claro). Also recorded in Serra da Bodoquena. Natural habitat is within nests of the giant ant Dinoponera grandis in tropical Brazilian environments [1].
- Colony Type: Commensal species, lives within nests of the host ant Dinoponera grandis. Colony structure and queen number are not well documented as the species is studied almost exclusively in association with its host.
- Size & Growth:
- Queen: Approximately 1mm head width (estimated from major measurements)
- Worker: Minor workers: 0.60mm HW, Major soldiers: 1.00mm HW
- Colony: Unknown, likely small colonies typical of commensal species
- Growth: Unknown, likely moderate
- Development: Estimated 4-8 weeks based on typical tropical Pheidole development (Development timeline not directly studied, estimates based on genus patterns for tropical species)
- Antkeeping:
- Temperature: Keep warm at 24-28°C, this is a tropical Brazilian species that naturally occurs in warm climates
- Humidity: Moderate to high humidity, typical of tropical forest floor commensal species
- Diapause: Unknown, tropical species may have reduced activity in cooler months but true hibernation is unlikely
- Nesting: This species requires a host colony to survive. In captivity, this means keeping Dinoponera grandis as the host species, or experimental setups where P. dinophila can be maintained in close proximity to host ants. This is not a species that can be kept independently.
- Behavior: This is a specialized commensal species that lives within the nests of much larger host ants. They are not aggressive and rely on the host colony for protection and potentially food scraps. They are not escape artists in the typical sense but their tiny size means they could potentially escape through small gaps if separated from host colonies. Their behavior within host nests is poorly documented.
- Common Issues: This species cannot be kept independently, it requires a host Dinoponera grandis colony, Keeping two colonies (host and commensal) dramatically increases complexity and cost, Host colony maintenance is challenging as Dinoponera are large, aggressive ponerine ants, The commensal relationship may be disrupted in captivity, P. dinophila may not survive without proper host integration, Limited availability, this species is rarely collected or available in the antkeeping hobby
The Commensal Relationship
Pheidole dinophila is one of the few Pheidole species that does not build its own nests. Instead, it lives as a commensal organism within the nests of the giant ant Dinoponera grandis, a ponerine ant that can reach 2-3cm in length, making it one of the largest ants in the world. The relationship appears to be non-predatory, meaning P. dinophila likely benefits from the host's shelter and food scraps without directly harming the host colony. This type of relationship is sometimes called 'myrmecophily', the term for ants that live in association with other ant species. In the wild, you would only find P. dinophila inside Dinoponera nests, making them extremely difficult to locate and study. This commensal lifestyle explains why so little is known about this species' colony structure, founding behavior, and development, researchers must find and dissect host nests to find them.
Housing Requirements
This is not a species for typical antkeeping. To keep P. dinophila, you must first establish and maintain a healthy colony of Dinoponera grandis as the host. Dinoponera are large, aggressive ants that require significant space and careful handling. They are ponerine ants with a painful sting, so they are not suitable for beginners. The P. dinophila colony would need to be introduced to or allowed to colonize the host setup naturally. This type of multi-species setup is extremely advanced and has not been documented in captive conditions. There are no established protocols for maintaining this commensal relationship in captivity. If you are interested in studying this species, you would need access to both ant species and significant experience with exotic ant husbandry.
Feeding and Diet
The diet of P. dinophila in captivity has never been documented. In nature, they likely survive on food scraps and debris within the host Dinoponera nest, similar to other commensal ant species. Dinoponera grandis is a predatory species that hunts large prey, so there may be opportunities for P. dinophila to scavenge from host foraging activities. Typical Pheidole species are generalists that eat seeds, small insects, and honeydew, but P. dinophila's specialized lifestyle may have altered its dietary needs. Without direct observation of captive colonies, any feeding recommendations would be speculative at best.
Legal and Ethical Considerations
Pheidole dinophila is native to Brazil and should not be found in the international ant trade. If you encounter this species for sale, it is likely wild-caught from Brazilian populations, which may violate local wildlife protection laws. Additionally, removing this species from its native habitat could harm the already fragile commensal relationship with Dinoponera grandis. Both species are part of Brazil's native fauna and should be respected in their natural ecosystem. If you are interested in studying this species, consider supporting research efforts in Brazil rather than attempting to collect or import them. [1]
Frequently Asked Questions
Can I keep Pheidole dinophila in a normal ant setup?
No. This is a commensal species that requires a host Dinoponera grandis colony to survive. They cannot be kept in standard formicariums or test tube setups. You would need to establish a complete host colony first, then somehow integrate the P. dinophila into that setup. This is extremely advanced and has never been documented in captivity.
What do Pheidole dinophila eat?
Their diet in captivity is completely unstudied. In nature, they likely scavenge food scraps and debris within Dinoponera nests. Without captive colonies, we cannot confirm what foods they would accept or require.
How long do Pheidole dinophila live?
Colony lifespan has not been studied. This is an obscure species that has never been maintained in captivity, so lifecycle data does not exist.
Are Pheidole dinophila dangerous?
No. This is a tiny commensal species that poses no threat. They are only about 1mm in size and live in association with much larger ants for protection. However, their host species Dinoponera grandis does have a potent sting.
Where can I find Pheidole dinophila?
This species has only been found inside nests of Dinoponera grandis in Brazil (Mato Grosso do Sul and São Paulo states). They are not available in the antkeeping hobby and would require fieldwork in Brazil to locate, which would require permits and ethical consideration.
Do Pheidole dinophila queens fly?
Nuptial flight behavior has not been documented. Like other Pheidole, they likely have mating flights, but the specifics are unknown.
Is Pheidole dinophila good for beginners?
No. This species is absolutely not suitable for beginners or even intermediate antkeepers. It requires maintaining a host colony of large, stinging ants and has never been kept in captivity. This is an expert-only species for researchers studying the commensal relationship.
What temperature do Pheidole dinophila need?
As a tropical Brazilian species, they likely require warm temperatures around 24-28°C. However, since they live within host nests that maintain their own temperature regulation, exact requirements are unknown.
How big do Pheidole dinophila colonies get?
Colony size is unknown. Being a commensal species living in host nests likely limits their numbers. Typical Pheidole colonies can reach thousands, but P. dinophila may remain much smaller due to their specialized lifestyle.
Why is Pheidole dinophila so rare in the hobby?
This species cannot be kept independently, it requires a host Dinoponera grandis colony. Additionally, they are only found inside host nests in specific regions of Brazil, making them extremely difficult to locate and collect. There is no established trade for this species.
References
This caresheet is licensed under CC BY-SA 4.0 .
No specimens available
We couldn't find any AntWeb specimens for Pheidole dinophila in our database.
Literature
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