Lordomyrma idianale

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to southern Luzon, Philippines, found in rainforest habitats at elevations from near summit to 300 m, including Mt Isarog National Park and Mt Makiling ^[1]. This species is a habitat specialist restricted to primary forest and nests between volcanic rocks ^[1][2].
• Colony Type: Unconfirmed. Colony structure (single-queen or multi-queen) has not been documented in scientific literature.
• Size & Growth:
  • Queen: Size data unavailable, no queen measurements described in literature
  • Worker: 3.2-3.5 mm total length ^[1]
  • Colony: Unknown, no colony size data available
  • Growth: Unknown
  • Development: Unknown, development timeline not studied for this species (Based on typical Myrmicinae patterns, estimated 6-8 weeks at tropical temperatures, but no specific data available)
• Antkeeping:
  • Temperature: Keep at 24-28°C. As a tropical rainforest species, they require warm conditions year-round ^[1].
  • Humidity: Keep nest substrate consistently moist but not waterlogged, as they nest in damp rainforest habitats ^[1].
  • Diapause: No, tropical species do not require hibernation.
  • Nesting: Y-tong or plaster nests that retain moisture are recommended, as they nest between volcanic rocks in nature ^[1].
• Behavior: Lordomyrma species are generally non-aggressive and cryptic. Workers are small and forage individually. Defense mechanism is smear-based, typical of Myrmicinae subfamily. Escape prevention is critical due to their small size.
• Common Issues: high humidity management is critical, too dry causes colony failure, too wet causes mold, small size makes escape prevention important, use tight-fitting lids and fine mesh, wild-caught colonies may be difficult to establish due to unknown founding requirements, tropical species cannot tolerate cool temperatures, keep above 24°C, habitat specialist may have specific substrate preferences not yet understood

Natural History and Distribution

Lordomyrma idianale is endemic to southern Luzon, Philippines, known from Mt Isarog National Park, Mt Makiling, and the Philippine National Botanic Garden ^[1]. It inhabits rainforest environments at elevations from near summit to 300 m and is restricted to primary forest ^[1][2]. In nature, they nest between volcanic rocks, taking advantage of moist microclimates ^[1]. On Mt Isarog, they occur sympatrically with L. diwata and L. emarginata ^[1].

Identification and Appearance

Workers measure 3.2-3.5 mm in total length with a dark mahogany body and lighter reddish-brown antennae and legs ^[1]. They are distinguished by intense reticulate-rugose sculpturation on pre-gastral surfaces, with smooth interspaces ^[1]. Propodeal spines are acute and relatively small, about half as long as in L. azumai ^[1]. The metanotal groove has raised transverse ribs, and the gaster is smooth with minutely sculptured stellae ^[1].

Housing and Nest Setup

Use Y-tong or plaster nests that retain moisture, as they nest between volcanic rocks in nature ^[1]. Provide narrow passages scaled to their small size. Ensure escape prevention with fine mesh due to their 3 mm size. Keep substrate moist but not waterlogged to mimic rainforest conditions.

Feeding and Diet

Specific dietary preferences are undocumented. Based on typical Lordomyrma behavior, offer small protein sources like fruit flies and sugar water. Feed small amounts every 2-3 days, removing uneaten food to prevent mold.

Temperature and Seasonal Care

Maintain temperatures between 24-28°C year-round, as they are tropical ^[1]. No diapause is required. Use heating cables if needed, placed on top of the nest to avoid drying moisture.

Defense and Behavior

This species uses a smear-based defense mechanism, typical of Myrmicinae ants. Workers are non-aggressive and cryptic, foraging individually or in small groups. Escape risk is high due to small size.

Challenges and Common Issues

Primary challenges include maintaining high humidity without causing mold, preventing escapes due to small size, and establishing wild-caught colonies with unknown founding requirements. Check temperature and humidity first if colony stress occurs.

Frequently Asked Questions

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References