Scientific illustration of Odontomachus yamanei ant - showing key identification features including head, thorax, and gaster.

Odontomachus yamanei

单后制 Non-Parasitic Queen 否 可育工蚁 (Gamergate)
学名
Odontomachus yamanei
族
Ponerini
亚科
Ponerinae
命名者
Zettel & Sorger, 2023
地理分布
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物种引言

Odontomachus yamanei is a large trap-jaw ant species native to Guadalcanal in the Solomon Islands. Workers measure up to 16.5 mm in total length . They have a long, slender head with a deep median furrow, long antennae and legs, and a pedunculate petiole with a long apical spine . The body is reddish brown to medium brown, with the gaster darkening toward the tip and showing a slight iridescence . This species was described in 2023 and was previously misidentified as Odontomachus saevissimus . As a member of the Odontomachus saevissimus species group, these ants use trap-jaws for hunting prey . They were collected at elevations from 50-650 m during November-December, indicating activity in the wet season .

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各国分布情况，数据源自 Kass et al. 2022 & Wong et al. 2023

本土物种 入侵物种 引入物种（温室内） 海关截获 未知
数据来源
年份区间 2000 - 2026

Quick Summary

  • Difficulty: Medium
  • Origin & Habitat: Solomon Islands, Guadalcanal Island, found at elevations from 50-650 m [1][2].
  • Colony Type: Unconfirmed, no specific data on queen number or social structure [1][2].
  • Size & Growth:
    • Queen: Size data unavailable, no measurements for queens in context [1][2].
    • Worker: Up to 16.5 mm total length [1][2].
    • Colony: Unknown, no data on colony size [1][2].
    • Growth: Moderate (estimated).
    • Development: Unknown, no data on development time [1][2]. (Development time is unclear, based on related species, it may take several weeks at optimal temperatures.)
  • Antkeeping:
    • Temperature: Temperature needs are unclear, start around 24-28°C and observe.
    • Humidity: Keep substrate consistently moist but not waterlogged.
    • Diapause: No, tropical species do not require hibernation.
    • Nesting: Provide humid nests with chambers large enough for their size.
  • Behavior: Workers are active predators with powerful mandibles for hunting and a sting for defense. They are alert and may defend the colony. Escape prevention is important due to their size and strength.
  • Common Issues: cold temperatures can stress or kill colonies, low humidity can cause dehydration, insufficient protein in diet can lead to starvation, escape risks due to size and strength

Appearance and Identification

Odontomachus yamanei is a large ant with a long, slender head and a deep median furrow [1][2]. Workers have a pedunculate petiole with a long, curved spine [1][2]. The body is reddish brown, with the gaster darkening and showing iridescence [1][2]. This species belongs to the Odontomachus saevissimus group [1][2].

Natural History and Distribution

This species is endemic to Guadalcanal Island in the Solomon Islands, found at elevations from 50-650 m [1][2]. Specimens were collected in November and December, indicating wet season activity [1][2]. It was previously misidentified as Odontomachus saevissimus [1][2].

Trap-Jaw Mechanism and Hunting

Odontomachus ants use trap-jaws for hunting prey [3]. Their mandibles are long and sharp, with denticles on the basal part [1][2]. This mechanism allows them to capture fast-moving insects [3].

Housing and Nesting

Provide a humid nest with chambers large enough for their size [3]. Use Y-tong or naturalistic setups with deep, moist substrate [3]. Ensure secure connections to prevent escapes [3].

Feeding and Diet

Feed live prey like small crickets or roaches [3]. Protein should form the bulk of their diet [3]. Remove uneaten prey to prevent mold [3].

Temperature and Seasonal Care

Maintain warm temperatures around 24-28°C with a slight gradient [3]. No diapause is needed for this tropical species [3].

Frequently Asked Questions

How long does it take for Odontomachus yamanei to produce first workers?

The exact timeline is unknown [1][2]. Based on related species, it may take several weeks at optimal temperatures [3].

Do Odontomachus yamanei ants sting?

Yes, they have a sting as part of their defense mechanism.

What do I feed Odontomachus yamanei?

Feed live protein like insects [3]. Remove uneaten prey after 24-48 hours [3].

Are Odontomachus yamanei good for beginners?

This species is rated Medium difficulty due to specific care needs [3]. It has a painful sting and requires warm, humid conditions [3].

Do Odontomachus yamanei need hibernation?

No, as a tropical species, they do not require diapause [3].

How big do Odontomachus yamanei colonies get?

Colony size is unknown [1][2]. Based on related species, they may reach several hundred workers.

Can I keep multiple Odontomachus yamanei queens together?

Colony structure is unconfirmed, but most Odontomachus are monogyne. Combining queens is not recommended [3].

What temperature is best for Odontomachus yamanei?

Start around 24-28°C and observe [3]. Provide a gradient for self-regulation [3].

When should I move Odontomachus yamanei to a formicarium?

Wait until the colony has several workers and brood [3]. Ensure the nest maintains humidity [3].

Why is my Odontomachus yamanei colony declining?

Common causes include incorrect temperature, low humidity, or insufficient diet [3]. Check your setup and adjust as needed [3].

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References

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此饲养指南授权协议为 CC BY-SA 4.0 .