Can beginners keep this species?

The Umhang's Saw Stag Beetle is considered suited to intermediate keepers rather than complete beginners. It helps to already have some basic stag beetle keeping knowledge; first-timers may want to start with an easier, domestic species first.

How large does it grow?

Males have reached up to 72.0mm in both bred and wild records, though the smallest bred record is 28.7mm, showing significant individual variation. Females reach up to about 38.4mm.

How long do adults live?

As a general rule for foreign saw stag beetles, adults live roughly 8 to 10 months. This can vary somewhat depending on rearing conditions.

It's generally considered a calm, even-tempered species, though individuals vary. When keeping more than one, separate them to keep males from coming into contact with each other.

Can I raise it from larva?

Yes, raising it from larva is possible. Keeping track of mat maintenance and replacement timing helps it develop smoothly, and watching it grow all the way to eclosion is part of the enjoyment.

Umhang's Saw Stag Beetle

The Umhang's Saw Stag Beetle is a saw stag beetle species native to East Africa, found in countries such as Tanzania and Malawi. Males have gently curved mandibles and a solidly built body that gives them a striking presence. They aren't widely available domestically, so keeping one is a relatively rare experience. Their temperament tends to be calm, and raising them from larva to adult rewards patience. Because breeding records for this species are still limited, keepers get to rely on their own observation and experimentation, making it a rewarding pick for hobbyists who already have some stag beetle experience.

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Umhang's Saw Stag Beetle key facts

Care level: Intermediate
Lifespan: About 8-10 months as adults, the general rule for foreign saw stag beetles
Size: Males: captive record 72.0mm, wild 72.0mm, smallest captive record 28.7mm; females: captive record 38.4mm
Temperature: 20〜24℃
Diet: Beetle jelly; larvae on fermented substrate or fungus bottles
Temperature & Humidity: Follow the standard routine for foreign saw stags and hold adults and larvae near 20-24C. Do not let winter temperatures fall below 18C or summer temperatures exceed 30C.
Breeding & Egg-laying: Set a log buried in fermented substrate at around 23-25C. Few Japanese breeders have run multiple generations, so start with the standard set and observe.
Cohabitation: House both sexes singly. The male's mandibles can crush a female during pairing, so keep them together only briefly and under supervision.
Lifespan & Rearing Period: As a general rule for foreign saw stags adults live about 8-10 months.
Health & Notes: Japanese sources call it either Umuhangi or Unhan. Captive records run from 28.7mm to 72.0mm, so check sizes against an actual measurement.

TraitsAfricanTanzaniaForeign stag beetleRarely tradedProsopocoilus

About Umhang's Saw Stag Beetle

A saw stag beetle native to East Africa (Tanzania, Malawi), with males reaching up to 72.0mm. Limited availability in Japan — what to know before keeping one.

7 things to know before welcoming a Umhang's Saw Stag Beetle

1Intermediate difficulty level
The Umhang's Saw Stag Beetle is considered a species suited to intermediate keepers. Beyond basic temperature and humidity control, understanding the finer points of larval rearing helps improve success. First-time keepers may want to gain experience with an easier, domestic species before taking this one on.
2Males vary widely in size
Male size varies considerably: the largest recorded specimens, both bred and wild, reach 72.0mm, while the smallest bred record is just 28.7mm. Females reach up to about 38.4mm. Comparing mandible curve and body size across individuals is part of the appeal.
3Adults live roughly 8–10 months
As a general rule for foreign saw stag beetles, adults live around 8 to 10 months. This can vary somewhat with conditions and the individual, so day-to-day observation helps you notice changes in condition early.
4Temperature control matters
As a species native to East Africa, it's important to avoid exposing them to extreme cold. Keeping them out of direct sunlight in a room with stable temperatures helps prevent them from losing condition. Pay extra attention during seasonal transitions.
5Generally calm temperament
This species is generally considered even-tempered and not especially skittish. That said, when keeping multiple individuals, give each its own space and avoid letting males come into contact with one another.
6Limited availability in Japan
The Umhang's Saw Stag Beetle isn't widely distributed within Japan. If you're considering keeping one, it helps to check listings regularly and have your husbandry supplies ready in advance.
7Gather supplies before you start
Before bringing one home, prepare the basics: a rearing case, insect mat substrate, a feeding dish, and insect jelly. If raising from larva, it also helps to research mat replacement timing in advance.

Frequently asked questions about Umhang's Saw Stag Beetle

Q.Can beginners keep this species?: A.The Umhang's Saw Stag Beetle is considered suited to intermediate keepers rather than complete beginners. It helps to already have some basic stag beetle keeping knowledge; first-timers may want to start with an easier, domestic species first.
Q.How large does it grow?: A.Males have reached up to 72.0mm in both bred and wild records, though the smallest bred record is 28.7mm, showing significant individual variation. Females reach up to about 38.4mm.
Q.How long do adults live?: A.As a general rule for foreign saw stag beetles, adults live roughly 8 to 10 months. This can vary somewhat depending on rearing conditions.
Q.Is it aggressive?: A.It's generally considered a calm, even-tempered species, though individuals vary. When keeping more than one, separate them to keep males from coming into contact with each other.
Q.Can I raise it from larva?: A.Yes, raising it from larva is possible. Keeping track of mat maintenance and replacement timing helps it develop smoothly, and watching it grow all the way to eclosion is part of the enjoyment.