Taurus Flat Stag Beetle

Taurus Flat Stag Beetle key facts

Care level

Beginner-friendly

Lifespan

Adults 1.5-2.5 years in captivity

Size

Males 50-65mm, females 35-45mm

Temperature

18〜25℃

Diet

Beetle jelly (adults); kinshi bottles or fermented substrate (larvae)

Temperature & Humidity

Keep at 18-25C, ideally no more than 23C. Hold above 15C in winter; if summer exceeds 25C keep the substrate on the dry side to avoid stagnant humidity.

Breeding & Egg-laying

Adults feed about two months after eclosion and mature a month later. Females lay in firmly packed, well-fermented substrate alone; soft logs are optional. Set at 20-23C and harvest eggs every 10-14 days, expecting about 20 per set.

Cohabitation

Even at this size it is a flat stag, so tie the male's mandibles for cohabitation pairing and otherwise house singly. With wild stock, breed from the gravid female first to avoid crossing mismatched localities.

Lifespan & Rearing Period

Adults live 1.5-2.5 years. Larvae grow on kinshi or substrate, emerging in 10-12 months (males) or 6-10 months (females); they tolerate cool temperatures, which can be used to stretch the larval period.

Health & Notes

Sensitive to heat and stagnant humidity. Lightly fermented first-stage substrate is linked to soft-body disease in larvae, so use well-matured substrate.

About Taurus Flat Stag Beetle

A medium-sized flat stag beetle with distinctive yellow hairs under its mandibles. Widespread across Southeast Asia, it's a beginner-friendly species.

7 things to know before welcoming a Taurus Flat Stag Beetle

1. 1Enclosure & Substrate

   A small to medium enclosure lined with insect substrate works well for adults. Since it can be kept using the same setup as Japan's native flat stag beetles, no special equipment is needed. Adding a piece of wood or bark gives it something to grip and prevents it from getting stuck on its back.

2. 2Temperament

   Males develop strong, well-developed mandibles, but the species is generally calm in temperament. When housed together, territorial disputes can occur, so keeping them individually is recommended for safety.

3. 3Expected Lifespan

   Adults typically live about one and a half to two and a half years in captivity. With appropriate temperature control and feeding, you can enjoy keeping this beetle for a long time.

4. 4Adult Size Range

   Adults reach roughly 50–65mm for males and 35–45mm for females. Because mandible shape varies by locality, beetles of similar size can look noticeably different depending on where they originate.

5. 5Feeding Basics

   Commercial insect jelly serves as the staple food, and standard feeding methods used for most stag beetles work fine — no special diet is required. Remove leftover food regularly to keep the enclosure clean.

6. 6Ease of Breeding

   It can be bred across generations using the same methods as Japan's native flat stag beetles, making it a natural next step for keepers who want to move beyond adult care into larvae rearing and breeding. It also serves well as an introductory species for learning breeding basics.

7. 7Before You Bring One Home

   Because this species is distributed across such a wide range, mandible shape and overall look can differ by locality. Checking which locality a beetle comes from before bringing it home helps avoid surprises. Have basic supplies like an enclosure, substrate, and insect jelly ready in advance.

Frequently asked questions about Taurus Flat Stag Beetle

Q.Is this species suitable for beginners?

A.Yes, it's considered a beginner-friendly species. Since it can be kept and bred using the same methods as Japan's native flat stag beetles, it's approachable even for first-time keepers.

Q.How long can I expect to keep one?

A.Adults typically live about one and a half to two and a half years in captivity, though this can vary depending on the individual and how it's kept.

Q.How large does it grow?

A.Adults reach roughly 50–65mm for males and 35–45mm for females, with mandible shape varying somewhat by locality.

Q.Can multiple individuals be kept together?

A.Territorial behavior can lead to fighting, so keeping them individually is generally recommended, especially avoiding housing two males together.

Q.Are there any regulatory considerations?

A.The Taurus Flat Stag Beetle is not subject to CITES.

Useful tools for Taurus Flat Stag Beetle care

Learn more about Taurus Flat Stag Beetle in the encyclopedia

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