Myrmica yani

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Fanjingshan Nature Reserve, Guizhou Province, China at 1667m elevation. Nests inside decayed wood in broadleaf and coniferous forests ^[1].
• Colony Type: Colony type is unconfirmed for this species. Limited data exists on queen number and social structure.
• Size & Growth:
  • Queen: ~7-8mm, inferred from Myrmica genus
  • Worker: ~4-6mm, inferred from Myrmica genus
  • Colony: Unknown for this species
  • Growth: Unknown
  • Development: Unconfirmed, estimated 6-10 weeks based on related Myrmica species (Development time is unconfirmed for this species.)
• Antkeeping:
  • Temperature: Keep around 18-22°C. This is a high-elevation mountain species from a cool temperate climate, so avoid overheating. Room temperature or slight cooling is appropriate.
  • Humidity: High humidity around 60-80%. These ants nest in rotting wood in forest environments, so the nest substrate should remain consistently moist but not waterlogged.
  • Diapause: Yes, as a temperate mountain species from high elevation, they require a winter hibernation period. Reduce temperature to 5-10°C for 3-4 months during winter.
  • Nesting: This species naturally nests inside decayed wood. In captivity, they do well in Y-tong nests, plaster nests with wood inserts, or naturalistic setups with rotting wood pieces. Avoid fully artificial acrylic nests, they prefer materials that can hold some moisture.
• Behavior: Myrmica yani is a relatively calm species with typical Myrmica defensive behavior. Workers are active foragers that will search for sugar sources and protein. They have functional stingers and can deliver a mild sting if provoked. Escape risk is moderate, they are small ants but not as tiny as some species, so standard barrier methods work well. They are not aggressive toward the keeper but will defend their nest vigorously.
• Common Issues: high elevation species is sensitive to overheating, keep cool and avoid temperatures above 25°C, limited data means colony growth expectations are uncertain, be patient and monitor your colony, hibernation is essential for this temperate species, skipping winter rest can weaken or kill the colony, nesting in decaying wood means they need humid conditions, dry nests will cause colony failure, as a newly described species, finding compatible housing may require experimentation

Housing and Nest Setup

Myrmica yani naturally nests inside decayed wood in cool, humid forest environments at high elevation. In captivity, the best options are Y-tong nests with wood inserts, plaster nests that can hold moisture, or naturalistic setups with pieces of rotting wood. Avoid fully dry acrylic nests, these ants need humidity and will struggle in artificial environments that cannot maintain moisture. Keep the nest in a cool location away from direct heat sources. A water reservoir or moisture wicking system helps maintain appropriate humidity levels. The outworld can be standard with appropriate escape prevention. ^[1]

Feeding and Diet

Like other Myrmica species, Myrmica yani workers will readily accept sugar water, honey, or honeydew as an energy source. For protein, offer small insects such as fruit flies, small mealworms, or other appropriately sized arthropods. Feed protein sources 2-3 times per week, and keep a sugar source constantly available. This species is not known to have unusual dietary requirements beyond typical Myrmica preferences. Remove uneaten prey after 24-48 hours to prevent mold issues.

Temperature and Seasonal Care

This is a cool-adapted species from high elevation (1667m), so temperature management is critical. Keep the nest area at 18-22°C, never exceed 25°C. Room temperature is often appropriate for this species. During winter, they require a proper hibernation period of 3-4 months at temperatures around 5-10°C. This mimics their natural seasonal cycle in the cool mountains of Guizhou. Failure to provide hibernation can weaken the colony and prevent proper reproductive cycles. Do not attempt to keep them active year-round. ^[1]

Colony Development and Growth

Myrmica yani was only described in 2016,making it one of the newer additions to the antkeeping hobby. Colony development data is limited. Queens likely seal themselves in a chamber and raise the first workers using stored fat reserves. The first workers will be smaller than normal workers. Colony size at maturity is unknown. Be patient with this species as limited husbandry data exists. ^[1]

Behavior and Handling

Myrmica yani has typical Myrmica temperament, they are not aggressive but will defend their nest if threatened. Workers have functional stingers and can deliver a mild, painful sting comparable to other Myrmica species. They are active foragers that will explore the outworld in search of food. Escape prevention should be adequate but not extreme, they are small but not among the tiniest ants, so standard barrier methods work well. They do not show unusual behaviors beyond typical Myrmica patterns.

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