Tetramorium shirlae

Quick Summary

• Difficulty: Unknown, too little data to assess
• Origin & Habitat: Native to the Middle East, known from Saudi Arabia (type locality: Wadi Abha, Abha city, Asir province) and multiple sites in Egypt (Elqasmia, Hawamdiya, Ismailiya, Abuzabal) ^[1]. The species appears to inhabit arid to semi-arid environments typical of the region, though specific habitat preferences are unconfirmed.
• Colony Type: Unconfirmed, colony structure has not been documented. Most Tetramorium species are single-queen (monogyne) colonies, but this has not been verified for Tetramorium shirlae specifically.
• Size & Growth:
  • Queen: Undescribed, no queen measurements available ^[1]
  • Worker: size data unavailable (only head measurements in the literature) ^[1]
  • Colony: Unknown, no colony size data available ^[2]
  • Growth: Unknown, no development data exists
  • Development: Estimated 6-10 weeks based on typical Tetramorium development patterns at optimal temperature (No species-specific development data exists. Estimates based on related Tetramorium species.)
• Antkeeping:
  • Temperature: Unconfirmed, start around 22-26°C based on typical Tetramorium preferences and Middle Eastern origin. Adjust based on colony activity.
  • Humidity: Unconfirmed, likely prefers moderate to dry conditions typical of arid regions. Keep nest substrate slightly moist but allow drying periods between waterings.
  • Diapause: Unknown, Middle Eastern origin may mean reduced activity periods, but specific overwintering requirements are unconfirmed.
  • Nesting: Unconfirmed, likely nests in soil or under stones based on typical Tetramorium behavior. A test tube setup or small plaster or Ytong (AAC) nest works as a starting point.
• Behavior: Undocumented in captivity. Based on typical Tetramorium behavior, they are likely ground-nesting ants that forage for small insects and honeydew. Their extremely small size means excellent escape prevention is essential, they can squeeze through remarkably small gaps. Temperament is unknown but most Tetramorium are not particularly aggressive. As a member of Myrmicinae tribe Crematogastrini, they are expected to use a smear defense mechanism, wiping venom onto attackers instead of stinging.
• Common Issues: no biological data available for the species, so all care recommendations are estimates based on genus patterns., escape prevention is critical due to their tiny size, use fine mesh barriers and fluon., lack of documented captive breeding success means no established protocols exist., wild-caught colonies may carry parasites, given their association with many insect species ^[3].

Appearance and Identification

Tetramorium shirlae workers are extremely small ants. They are easily recognized by their bicolored pattern: the head, alitrunk (middle body section), petiole and postpetiole are pale brown, while the antennae and legs are yellow, and the gaster (abdomen) is dark brown to blackish ^[1]. The head is longer than broad, with long frontal carinae reaching back about two-thirds of the head length, and strong longitudinal striations on the head ^[1]. Antennae have 12 segments with dense pubescence. Propodeal spines are short and acute with a broad base ^[1]. The species was described in 2007 from Saudi Arabia and subsequently recorded in Egypt ^[1].

Distribution and Collection Records

This species is known from two countries in the Middle East: Saudi Arabia (type locality: Wadi Abha, Abha city in Asir province) and Egypt ^[1]. Egyptian collection sites include Elqasmia (Belbis), Hawamdiya (Giza), Ismailiya, and Abuzabal (Qalyubiya) ^[1]. Collections occurred across multiple months including February, April, June, and November, suggesting the species is active for much of the year ^[1]. Researchers believe the species may have a wider distribution in Egypt than currently documented ^[1].

Known Associations

Field studies in Egypt have documented Tetramorium shirlae living alongside numerous other invertebrate species, including various beetles (Coleoptera), springtails (Collembola), termites, and other insects ^[3]. This suggests the species occupies diverse microhabitats and may be relatively flexible in its nesting requirements. The associations with springtails and various ground-dwelling insects indicate they likely forage in leaf litter and soil surface environments ^[3].

Care Recommendations

Since no captive care data exists for this species ^[2], all recommendations are estimates based on typical Tetramorium behavior and the ant's Middle Eastern origin. Start with a test tube setup or small plaster or Ytong (AAC) nest. Temperature should be in the range of 22-26°C initially, monitor colony activity to fine-tune. Humidity should be moderate, keep the nest substrate slightly moist but allow some drying between waterings. For feeding, offer small protein sources (fruit flies, small mealworms) and sugar water or honey. Their tiny size means escape prevention must be excellent, even standard test tube cotton can be too loose. Use fluon on edges and fine mesh for any ventilation. As a member of Myrmicinae tribe Crematogastrini, they are expected to use a smear defense mechanism, wiping venom onto enemies. This species is not recommended for beginners due to the complete lack of documented captive care information.

Research Gaps

Tetramorium shirlae is one of the least studied ant species in the hobby. No information exists on: colony founding behavior, queen claustral status, development timeline, nuptial flight timing, colony size limits, temperature/humidity preferences, or any aspect of captive husbandry ^[2]. The original species description provides only worker measurements and basic coloration ^[1]. This represents both a challenge (no established protocols) and an opportunity (potential for dedicated keepers to document new species information). Any successful captive breeding would be a novel contribution to antkeeping knowledge.

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