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Atlas / Library / Lucanidae / Giraffe stag beetle
IntermediateNocturnal · sleeping now
P
Lucanidae

Giraffe stag beetle

Prosopocoilus giraffaด้วงคีม (stag-beetle group)

The page we cite does not state this figure. We opened it on 10 Aug 2026 and it gives no temperature for this species at all. The values above may still be right, but we cannot show you where they came from, and nobody here has checked them against a second source. Anything about a sick animal goes to a qualified exotic vet, not to a page. en.wikipedia.org

14:00
Day

Drag the sun. Giraffe stag beetle is nocturnal, so what it is doing changes with the light.

National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.

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https://keepr.pet/husbandry/en/prosopocoilus-giraffa

‹ All husbandry guides
Temperature22–27 °C
Humidity60–80 %
Enclosure25×20×20
Diet1–2 days

The numbers

Temperature

152025303540 °C
22–27°Ambient

One ambient band, 22–27°C. This sheet states no warm side, no cool side and no night figure, so none are shown. Same scale on every sheet here, so two species compare by eye.

The sheet states22-27C

Humidity

60–80%Target RH

The sheet states60-80%

Identity

Adult size

1.75 m12 cm
1520100400 cm
12 cmNose to tail, adult

The size the sheet states for a grown animal.

Why

Two drawings, because they answer two questions. The silhouette is at true scale against a 1.75 m person: it says how big this animal actually is, which no number does for someone who has never seen one. The bar under it is logarithmic and shared by every sheet here, so a 2 cm isopod and a 4 m python both stay readable on the same axis and two species can be compared at a glance.

Order / Family
Coleoptera
IUCN / CITES
Not evaluated; CITES not yet in our data
Difficulty
Intermediate
Commonality
The longest stag beetle; a hobby flagship
Adult size
Body up to ~120mm incl. huge jaws (world's longest stag)
Lifespan
Larva ~8-14 mo; adult ~6-12 mo
Growth rate
Moderate
Activity & niche
Nocturnal; adults on sap; larvae in white-rotten hardwood
Temperament
Males fiercely territorial; docile to keeper
Venom / defense
Harmless - no venom; powerful jaw pinch

Enclosure and conditions

Enclosure

substrateclimbing branchwarm hidewater60–80 % RH25 cm20 cm
warm hideclimbing branchwatersubstrate
50100150200 cm
25 × 20 × 20 cmWidth × depth × height
5dm² of floor
Warm side: not in our dataUVB: not in our data

Drawn from the stated numbers. Only what the sheet states is drawn inside.

Why

The rectangle carries the exact width-to-height ratio of the figures above it, and the ruler under it places that width on the 0–250 cm scale every sheet here shares, so two species still compare at a glance. Nothing is added that the sheet does not name: a lamp drawn on a sheet that never mentions one would be invented equipment. What the sheet leaves out is listed rather than left blank, because an empty tank reads as « none needed ».

The sheet statesLarvae: flake soil / kinshi bottles 1-2.3L; adults 25x20x20cm+ to breed

Temperature
22-27C
Humidity
60-80%
Min. enclosure
Larvae: flake soil / kinshi bottles 1-2.3L; adults 25x20x20cm+ to breed
Substrate
Larvae: white-rotten hardwood / flake soil / kinshi; adults: coco/soil + bark
Hides / decor / water
Egg-laying wood, bark hides; mist for humidity

What your climate adds

This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.

Diet

Feeding rhythm

every 1–2 dAs an adult
28Meals in 28 days

Twenty-eight days, one row. Each band is a meal window. The sheet gives several ages on one line; this is the adult figure.

Why

The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56.

The sheet statesAdults: beetle jelly, banana; larvae eat rotten wood/flake soil/kinshi · Adults: jelly every 1-2 days; larvae: change substrate every 2-3 mo

Staple food
Adults: beetle jelly, banana; larvae eat rotten wood/flake soil/kinshi
Feeding frequency
Adults: jelly every 1-2 days; larvae: change substrate every 2-3 mo
Supplements
High-protein flake soil/kinshi for jaw length

Behaviour and handling

HandlingGentle; strong pinch; support body
CommunalHouse individually (males + females fight); pair only to breed
Defense / stress signsJaw-gaping threat, freezing

Reproduction

Life course

Day 0Hatch
0.7–1.2 yrLifespan in care
0.7 yrMinimum commitment
Sexual maturityNot in our data

Read from the lifespan and maturity the sheet states, for animals in care and not in the wild.

Why

The minimum commitment is the low end of that lifespan, and the reproductive window is what is left after maturity: both are subtractions on stated figures, not figures of their own.

Reproduction
Eggs in rotten wood -> L1-L3 -> pupa in cell -> adult

Common health problems

Common health issues
SignsFailed eclosion, mites, dehydration, jaw/leg damage
Red flags / quarantine
SignsMites; verify legal import; never release non-natives

Good to know

  • Its jaws can be nearly as long as its body - the longest of any stag beetle

What it needs

Enclosure at least 25 × 20 × 20 cmbecause enclosureLarvae: flake soil / kinshi bottles 1-2.3L; adults 25x20x20cm+ to breed
A thermometerbecause temp22-27C
A hygrometerbecause humidity60-80%

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation.

Sources

Others in this group

What this sheet states

100%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

Every field this product runs on is stated here. That is not a claim that the values are right: it says what the sheet states, not whether it is true. Whether a human has read it is the badge at the top of this page.

UVB is measured but does not count: it is absent from 421 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.