Takara Flat Stag Beetle

Takara Flat Stag Beetle key facts

Care level

Intermediate

Lifespan

Adults 1-3 years

Size

Males 45-75 mm (including captive; wild up to 70.1 mm) / females 20-35 mm

Temperature

20〜26℃

Diet

Tree sap, beetle jelly

Temperature & Humidity

Keep at about 20-26 C. From the subtropical Tokara Islands, so avoid exposing it to extreme cold indoors in winter. Keep the substrate moist enough to clump when squeezed.

Breeding & Egg-laying

Females lay in the buried base of dead standing hardwood or under fallen logs. In captivity bury fairly soft logs in fermented substrate and rear larvae in substrate or fungus bottles. Larvae take 1-2 years.

Cohabitation

Very aggressive; males often kill females. Keep singly and pair only for a few days under supervision.

Lifespan & Rearing Period

Adults live 1-3 years. Newly emerged adults stay in the pupal cell about a month before becoming active.

Health & Notes

A population limited to Takarajima and Kodakarajima, so keep captive-bred stock and never release beetles. The grip is strong, so handle with care.

About Takara Flat Stag Beetle

A flat stag beetle subspecies found only on Takarajima and Kodakarajima in Japan's Tokara Islands, known for its compact, thickset build. Adults live one to three years; suited to intermediate keepers.

7 things to know before welcoming a Takara Flat Stag Beetle

1. 1Endemic to Just Two Islands

   This subspecies is found only on Takarajima and Kodakarajima in the Tokara Islands. Its extremely limited range sets it apart from other Japanese flat stag beetle populations and is part of what makes it distinctive to keepers.

2. 2A Thick, Stocky Build

   Although small among Japanese subspecies, its body is notably thick and robust, with short, stout mandibles. This distinctive stocky silhouette is a major part of its appeal.

3. 3Aggressive Temperament, Keep Alone

   This beetle has an aggressive temperament, and housing multiple individuals together often leads to fighting. As a rule, keep each beetle in its own separate enclosure.

4. 4Know the Size Range

   Adult males typically range from 45 to 75mm and females from 20 to 35mm, even under captive care. Picturing the mature size in advance helps you prepare an appropriately sized setup.

5. 5Intermediate-Level Care

   Care is considered intermediate level. It's best to have a solid grasp of basic stag beetle husbandry — temperature and humidity control, substrate and wood management — before bringing one home.

6. 6Adults Live One to Three Years

   Adults generally live one to three years, which is relatively long compared to many other insects. Set up your enclosure with long-term care in mind.

7. 7Prepare the Enclosure in Advance

   Set up the enclosure, substrate, and climbing wood or feeding perches before the beetle arrives for a smooth start. Since individuals should be kept separately, be sure to prepare one enclosure per beetle.

Frequently asked questions about Takara Flat Stag Beetle

Q.Where does the Takara Flat Stag Beetle live?

A.It's a subspecies of flat stag beetle found only on Takarajima and Kodakarajima in the Tokara Islands, and nowhere else.

Q.Can multiple beetles be kept together?

A.This species is aggressive, and housing individuals together often leads to fighting. It's recommended to keep each beetle in its own separate enclosure.

Q.How large do adults grow?

A.Males typically reach 45 to 75mm and females 20 to 35mm. While small compared to other Japanese subspecies, the body is notably thick and sturdy.

Q.How long do they live?

A.Adults generally live one to three years, which is relatively long for an insect, allowing for extended enjoyment and observation.

Q.Is this beetle suitable for beginners?

A.Care is rated as intermediate level. It's best to understand the basics of stag beetle husbandry before bringing one home.

Useful tools for Takara Flat Stag Beetle care

Learn more about Takara Flat Stag Beetle in the encyclopedia

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