Pheidole tysoni

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Eastern North America, found in open areas like dry fields, meadows, prairie remnants, and open wooded areas with sandy or poor soils. Often nests under stones in shaded locations ^[1][4].
• Colony Type: Monogyne (single queen) colonies with small colony sizes ^[5][1].
• Size & Growth:
  • Queen: Size data unavailable, no total length measurements in research context
  • Worker: Major: 3.5-3.7 mm, Minor: 1.8-2.0 mm ^[1]
  • Colony: Up to 100 workers ^[1]
  • Growth: Moderate
  • Development: 6-8 weeks (estimated based on typical Pheidole patterns) (Development time is not directly documented, estimates based on genus-level data.)
• Antkeeping:
  • Temperature: Keep at room temperature (20-24°C). This is a temperate species adapted to typical indoor conditions ^[1].
  • Humidity: Prefers dry to moderate conditions. Keep nest substrate lightly moist but allow it to dry between waterings to mimic natural prairie habitats ^[4].
  • Diapause: Yes, as a temperate species, they benefit from a winter rest period. Reduce temperature to 10-15°C for 2-3 months during winter.
  • Nesting: Soil nests work well. They naturally nest under stones, so use Y-tong, plaster, or soil nests with dry to moderately moist substrate ^[4].
• Behavior: Peaceful, non-aggressive ants that focus on seed harvesting and tending aphids. Their small size means they can escape through tiny gaps, use fine mesh barriers. They are ground-nesting and rarely climb ^[1].
• Common Issues: parasitic fungus infection, Myrmicinosporidium durum can kill colonies, especially in late summer and fall, watch for discolored workers ^[6], escape through tiny gaps, minors are only 1.8-2.0 mm and can squeeze through standard openings, use fine mesh barriers, small colony vulnerability, colonies stay small and can be wiped out by stress, avoid disturbing during founding, overheating risk, from dry habitats, they prefer cooler conditions, keep away from direct heat sources, wild-caught colonies may have parasites, quarantine and monitor for disease signs ^[6]

Nest Preferences

In the wild, Pheidole tysoni nests in soil, often under stones in shaded locations. They've been found in pure sandy soil in New York pine barrens, clayey residential lawn soil, and under stones in open woodlands ^[4]. For captive care, use Y-tong, plaster, or soil nests with a dry to moderately moist substrate. Avoid overly humid conditions, these ants prefer drier nest environments ^[4].

Feeding and Diet

Pheidole tysoni is primarily a seed harvester, seeds are occasionally found in their nests ^[1]. Workers also tend aphids and collect floral nectar ^[1][4]. In captivity, offer small seeds, protein sources like fruit flies, and constant sugar water. Feed seeds continuously and offer protein 2-3 times per week.

Temperature and Seasonal Care

This is a temperate species native to eastern North America. Keep them at room temperature (20-24°C), they do well in typical indoor conditions ^[1]. During winter, they benefit from a diapause period. Reduce temperature to 10-15°C for 2-3 months, typically from late fall to early spring.

Colony Structure and Growth

Pheidole tysoni forms small monogyne colonies with a single queen. Colonies documented in the wild are small, up to 100 workers ^[1][5]. The colony grows moderately, and major workers develop once the colony reaches a certain size. Founding behavior is unconfirmed, but queens likely seal themselves in during claustral founding.

Health Concerns and Parasites

A significant concern is the parasitic fungus Myrmicinosporidium durum, which infects workers in the USA ^[6]. Infected workers may appear normal but can spread the parasite. Watch for discolored workers, especially in late summer and fall ^[6]. If you suspect issues, isolate the colony.

Behavior and Temperament

These are peaceful, ground-dwelling ants that are not aggressive. Workers are small and forage on the ground surface. Their tiny size means escape risk is high, always use fine mesh barriers ^[1]. They are not territorial and use chemical trails to recruit nestmates to food.

Frequently Asked Questions

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References