Solenopsis pawaensis

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Solomon Islands (Ugi, Isabel, Makira, Guadalcanal), a tropical Pacific archipelago. Likely found in forest edges and disturbed areas with suitable nesting sites ^[1][2].
• Colony Type: Colony structure is unconfirmed, no data exists on whether this species is monogyne or polygyne.
• Size & Growth:
  • Queen: Not described in available literature. Based on related tropical Solenopsis species, estimated ~5-7 mm.
  • Worker: Not recorded. Based on related Solenopsis, estimated 2-4 mm.
  • Colony: Unknown, no colony size data exists for this species.
  • Growth: Unconfirmed, likely moderate based on related tropical Solenopsis.
  • Development: Estimated 4-6 weeks at 25-28°C, based on related species. (This is an estimate, no direct observations are available for S. pawaensis.)
• Antkeeping:
  • Temperature: Keep warm year-round at 24-28°C. A heating cable on one side of the nest gives a gentle temperature gradient. Avoid drops below 22°C ^[1].
  • Humidity: High humidity is needed. Keep the nest substrate consistently moist (damp to the touch, not waterlogged). Provide a water tube in the outworld. Good ventilation prevents mold.
  • Diapause: No, this tropical species does not hibernate. Keep warm all year ^[1].
  • Nesting: Standard test tubes work for founding. For larger colonies, use soil nests or Y‑tong (AAC) formicaria with small chambers. Avoid acrylic nests. Provide moist nesting media.
• Behavior: Workers are active foragers that scavenge for small insects and tend honeydew‑producing insects. Like other Solenopsis, they may deliver a mild sting when disturbed. Because of their tiny size (under 3 mm), they can escape through very small gaps, use tight‑fitting lids and fine mesh. They may be polydomous (multiple connected nests), as seen in many tropical Solenopsis.
• Common Issues: limited availability, this species is rarely found in the antkeeping hobby due to its restricted range, no established captive breeding protocols, care requirements are estimated from genus patterns, small size makes escape prevention critical, they can squeeze through tiny gaps, humidity must be maintained, dry conditions stress the colony, tropical requirements mean no winter cooling, keep warm year‑round

Temperature and Care

Solenopsis pawaensis needs warm, stable conditions typical of a tropical island ant. Keep the nest area at 24-28°C year‑round. A heating cable placed on one side of the nest creates a gradient so the ants can choose their preferred temperature. Avoid temps below 22°C, this species has no cold tolerance. In cooler climates, use a heat mat or cable, but place it on top of the nest rather than underneath to avoid drying out the substrate too quickly. ^[1]

Feeding and Diet

Like other Solenopsis, this ant is an opportunistic omnivore. Offer small protein sources such as fruit flies, tiny crickets, or pieces of mealworm. They also need sugar, a drop of honey or sugar water on a cotton ball every few days works well. In the wild, they probably forage for small arthropods and tend honeydew‑producing insects. Feed protein 2-3 times per week, adjusting based on colony size. Remove uneaten prey after 24 hours to prevent mold. Replace sugar water every few days.

Nesting Preferences

In the wild, S. pawaensis likely nests in soil or under stones in forest edges and disturbed areas. For captive care, provide a moist nesting chamber with soil or a soil‑sand mixture. Test tubes with a water reservoir work well for founding colonies, fill the tube about one‑third with water blocked by a cotton plug, then let the queen settle. For established colonies, use Y‑tong (AAC) nests or 3D‑printed nests with small chambers that suit their tiny 2-4 mm workers. Avoid acrylic nests, as they do not hold humidity well. Make sure passages are narrow so the ants feel secure.

Humidity Requirements

This ant comes from the humid Solomon Islands, so it needs high moisture. Keep the nest substrate consistently damp, it should feel moist when touched but not have standing water. A water tube in the outworld gives the ants drinking water. Mist the nest occasionally, but avoid condensation pooling. Good ventilation helps prevent mold while keeping humidity high. If you see constant condensation on the nest walls, reduce misting. ^[1]

Behavior and Temperament

Workers are small but active foragers. They are likely aggressive when defending the nest and can deliver a mild sting (typical of Solenopsis species). The sting is not dangerous to healthy humans but can be irritating. In the wild, they may maintain multiple connected nest sites (polydomous). In captivity, they explore the outworld actively in search of food. Escape prevention is critical due to their tiny size, use tight‑fitting lids, fluon barriers, and fine mesh on any ventilation. They are faster than their small size suggests and can slip through surprisingly small gaps.

Frequently Asked Questions

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References