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Reiche's Flat Stag Beetle

Reiche's Flat Stag Beetle

Reiche's Flat Stag Beetle is a slender, small-to-medium flat stag beetle native to a wide range stretching from northeastern India through Indochina to the Malay Peninsula, Borneo, and Sumatra. With its elongated build reminiscent of a larger Dorcus beetle and the sturdy mandibles typical of flat stags, it strikes a nice balance between striking looks and approachability. Known for being hardy, prolific breeders with a relatively short larval period, they've long served as a gateway species for keepers new to exotic stag beetles. Their temperament is generally calm, making them a good match for first-time keepers, and because the species splits into several regional subspecies, you'll find some variation in mandible shape and body size even among beetles sharing the same common name.

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About Reiche's Flat Stag Beetle

Reiche's Flat Stag Beetle is a beginner-friendly exotic stag beetle known for its hardiness, prolific breeding, short larval period, and slender build with sturdy mandibles.

7 things to know before welcoming a Reiche's Flat Stag Beetle

  1. 1Hardy and Beginner-Friendly

    Reiche's Flat Stag Beetle is hardy, breeds prolifically, and has a relatively short larval period, making it a well-known gateway species for first-time exotic beetle keepers. It's generally rated as beginner-friendly and doesn't require specialized equipment to keep successfully.

  2. 2Slender Body, Sturdy Jaws

    Its slender silhouette, reminiscent of a larger Dorcus beetle, is paired with the sturdy mandibles typical of flat stags. Because the species spans a wide range and multiple subspecies, mandible shape and body size can vary noticeably between individuals.

  3. 3Handle the Mandibles with Care

    Males have a strong pinching grip, and a bite from their mandibles can be surprisingly painful. When handling, hold the body rather than reaching near the base of the jaws. Housing multiple males together should also be avoided, since they can fight and injure one another.

  4. 4Adults Live About 1 to 2 Years

    As adults, they typically live for about one to two years. Avoiding sudden temperature swings and keeping the enclosure from drying out helps you enjoy them for as long as possible.

  5. 5Size Varies by Subspecies

    Males vary by subspecies, with records of up to 58.9mm in the nominate subspecies and 65.7mm in subspecies prosti. Females typically reach around 24-30mm in captivity.

  6. 6Prolific with a Short Larval Stage

    Females tend to lay a good number of eggs, and the larval stage is relatively short. That makes the species approachable both for keepers wanting to try breeding and for those just getting comfortable with basic care.

  7. 7What to Prepare Before Bringing One Home

    Having the basics ready in advance — an enclosure, insect substrate, a climbing branch, and insect jelly — makes for a smooth start. Choose a case with enough room for the beetle to move around, and keep individuals separately rather than housing several together.

Frequently asked questions about Reiche's Flat Stag Beetle

Q.Is Reiche's Flat Stag Beetle suitable for beginners?
A.Yes, it's considered a great entry point into exotic stag beetle keeping thanks to its hardiness, prolific breeding, and short larval period. No specialized equipment is needed — basic beetle-keeping supplies are enough to get started.
Q.How long do adults typically live?
A.Adults generally live for about one to two years. Keeping them away from extreme temperature swings and dryness helps you enjoy them for as long as possible.
Q.How much do males and females differ in size?
A.Males vary by subspecies, reaching up to 58.9mm in the nominate subspecies and 65.7mm in subspecies prosti. Females typically grow to around 24-30mm in captivity.
Q.Can males and females be housed together?
A.Males often fight and injure each other, so they're generally kept one per enclosure. Housing a male and female together is best avoided unless you can supervise them closely.
Q.What should I be careful of when handling them?
A.Males have a strong pinching grip, so hold the body rather than reaching near the base of the mandibles. Handle them close to a low surface, since a sudden startle can make them thrash and fall.

Useful tools for Reiche's Flat Stag Beetle care

Learn more about Reiche's Flat Stag Beetle in the encyclopedia

View Reiche's Flat Stag Beetle encyclopedia entry →

Care difficulty, lifespan, size and diet — all basics covered.

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