Myopias conicara

Myopias conicara

Myopias conicara is a medium-sized ponerine ant native to the hot tropical and subtropical forests of southern Yunnan Province, China and northern Vietnam. Workers measure 7.2-8.3mm with a predominantly black body and reddish-brown appendages, while queens reach around 10mm with only slightly larger bodies than workers. This species is remarkable for its extremely specialized diet, it is a dedicated predator that exclusively hunts xystodesmid millipedes, using a unique feeding strategy where workers remove the millipede's head first, then larvae consume the body rings sequentially, leaving behind ring-shaped exoskeletons outside the nest. The colony observed in Vietnam contained 41 workers,1 queen, and 38 larvae, making it a relatively small colony for the genus. This is an expert-level species due to its specialized dietary requirements and the difficulty of maintaining a millipede food source.

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Hot tropical and subtropical evergreen forests of southern Yunnan Province, China and northern Vietnam, typically found under stones in limestone karst areas at elevations around 200-1200m ^[1][2][3]
• Colony Type: Single-queen colonies (monogyne) with small colony sizes typically under 100 workers. Workers are monomorphic with minimal size variation between castes ^[2][3].
  • Colony: Monogyne
• Size & Growth:
  • Queen: 10.0mm (TL),1.70mm HW ^[1]
  • Worker: 7.2-8.3mm (TL),1.27-1.50mm HW ^[1]
  • Colony: Up to approximately 100 workers based on typical Myopias patterns ^[2]
  • Growth: Slow, colonies remain small
  • Development: Unknown, no direct data available (Development timeline has not been studied. Based on typical Ponerinae patterns, expect several months for first workers.)
• Antkeeping:
  • Temperature: Keep warm at 24-28°C. This species comes from hot tropical/subtropical forests and requires stable warmth ^[1].
  • Humidity: Maintain moderate to high humidity, they nest under stones in evergreen forest understories where conditions are damp. Keep substrate consistently moist but not waterlogged.
  • Diapause: Unlikely, being a tropical species, they probably do not require a diapause period. Keep temperatures stable year-round.
  • Nesting: Natural nesting is under stones in forest settings. In captivity, a naturalistic setup with a damp soil chamber and a flat stone or ceramic tile on top works well. They need a dark, humid nest chamber where they can handle prey. Avoid dry, airy setups.
• Behavior: This is a specialized ground predator. Workers hunt millipedes by grasping their legs or body and stinging them ventrally, then retrieve the paralyzed prey to the nest. Unlike most ants, both the queen and workers feed directly on the prey inside the nest chamber. Workers are not aggressive toward humans but have functional stingers. They are relatively slow-moving and not escape artists compared to tiny ants, but use standard escape prevention anyway. The most notable behavior is their unique prey processing, they systematically consume millipedes ring by ring over 12+ hours per prey item.
• Common Issues: specialized diet makes this species extremely difficult to maintain, they refuse most standard prey like termites and cockroaches, accepting only mealworms and millipedes, difficulty of obtaining a sustainable millipede food source is the primary challenge for keeping this species, small colony size means losses have big impact, a colony with only 40-100 workers is fragile, queen feeds directly on prey inside nest, if prey runs out, the colony may struggle more than species where only workers forage, wild-caught colonies may have specific mite or parasite loads from their specialized habitat

Housing and Nest Setup

Myopias conicara requires a naturalistic setup that mimics their natural under-stone nesting habitat. Use a container with damp soil or sand as the substrate (at least 3-4cm deep) with a flat stone, ceramic tile, or similar cover placed on top to create a dark, humid chamber beneath. The setup should allow you to observe the colony while maintaining darkness in the nest area. Because they are specialized predators that need to process large prey items, the nest chamber should be spacious enough for multiple ants to work on prey together. An outworld area for hunting should be connected to the nest, where you can introduce prey items. Use standard escape prevention (fluon on edges) though this species is not particularly prone to escaping like tiny ants. Keep the setup at room temperature within their warm range. ^[2][3][1]

Feeding and Diet - The Critical Challenge

This is the most challenging aspect of keeping Myopias conicara. They are extreme specialists that primarily hunt and feed on xystodesmid millipedes in the wild. In captivity, they have been observed accepting mealworms (Tenebrio larvae) but refusing termites and cockroaches ^[2]. This means you will need a sustainable source of small millipedes or at minimum, regular mealworm supplies. The feeding behavior is fascinating but time-consuming, workers sting prey, retrieve it to the nest, lick it for 1-2 hours, then systematically dismantle it. The queen feeds directly on prey inside the nest chamber alongside workers and larvae ^[2]. A single millipede (about 20mm) takes over 12 hours to fully consume. Feed prey 2-3 times weekly, removing uneaten prey after 24 hours. Do not expect them to accept sugar water, honey, or fruit, their digestive system is specialized for protein.

Temperature and Environmental Needs

Being a tropical/subtropical species from southern Yunnan and northern Vietnam, Myopias conicara needs warm conditions. Maintain temperatures between 24-28°C (75-82°F). They naturally occur in hot, humid forest environments at low elevations around 200-1200m. Room temperature in most homes should work, but you may need a small heating mat on one side of the setup to maintain these temperatures, especially in cooler climates. Humidity should be moderate to high, the damp conditions under stones in evergreen forest. Keep the substrate moist but not saturated. There is no evidence they require a winter diapause, so maintain stable temperatures year-round. Avoid cold drafts and temperatures below 20°C. ^[1][2][3]

Behavior and Colony Dynamics

Myopias conicara colonies are small and relatively docile. The observed colony had just 41 workers plus a queen and brood, this is typical for the genus, which rarely exceeds 1000 workers ^[2]. Unlike many ant species, the queen is actively involved in the nest: she stays near the brood, walks around the chamber performing antennation with workers, and most remarkably, she feeds directly on prey inside the nest alongside her workers ^[2]. Workers are monomorphic (all the same size) with minimal physical difference from the queen beyond her three ocelli and larger abdomen. When hunting, workers grasp millipede legs or bodies and sting them ventrally, then recruit nestmates if the prey is large. The unique prey-processing behavior (removing the head first, then feeding larvae ring-by-ring) is one of the most complex feeding sequences documented in ants.

Colony Founding

The founding behavior of Myopias conicara has not been directly documented in scientific literature. Based on typical patterns in the Ponerinae subfamily, the queen likely seals herself in a claustral chamber and raises her first workers alone using stored fat reserves. However, this is an inference rather than a confirmed fact. If you obtain a newly mated queen, provide her with a small, dark, humid chamber (like a test tube or small soil setup) and do not disturb her. Do not offer food during founding unless you observe her leaving the chamber, which would indicate semi-claustral behavior. Wait at least 4-6 weeks before checking for eggs, and expect several months before first workers (nanitics) appear.

Frequently Asked Questions

References