European stag beetle (Lucanus cervus)

Short answers

European stag beetle: How big does the enclosure need to be?

Larvae in white-rotted oak wood or a container; beetles: approx. 40×30×30 cm (keeping them is heavily restricted in Germany).

European stag beetle: What temperature does it need?

Daytime 18–24 °C, at night 12–18 °C.

European stag beetle: Does it need UVB lighting?

UVB: No UVB needed.

European stag beetle: How long do they live?

Life expectancy: the beetle lives only a few weeks to months; larval development takes 3–8 years.

European stag beetle: Is it suitable for beginners?

No – better suited to experienced keepers (difficulty: Expert).

Climate

Daytime temperature

18–24 °C

Night temperature

12–18 °C

Basking spot

—

Humidity

60–80 % (substrate and wood kept damp)

UVB

No UVB needed

Enclosure

Minimum size

larvae in white-rotted oak wood or a container; beetles: approx. 40×30×30 cm (keeping them is heavily restricted in Germany)

Substrate

Larvae: white-rotted deciduous or oak wood (almost 100 % wood), damp; they pupate in the surrounding soil

Feeding

Food

Beetles: tree or fermenting sap, fruit, sugar solution; the females need protein (a little yoghurt, for example) to develop their eggs; larvae: rotten oak wood

Feeding interval

beetles: sap or fruit as needed; the larvae feed continuously from the wood substrate

Key facts

Adult size

males approx. 35–75 (up to 90) mm including the mandibles, females approx. 30–50 mm

Life expectancy

the beetle lives only a few weeks to months; larval development takes 3–8 years

Origin

Europe, the Near East (oak woodland)

Protection status

HIGHLY relevant: Habitats Directive Annex II and SPECIALLY PROTECTED (German Species Protection Ordinance and §44 of the Federal Nature Conservation Act). Taking it from the wild and possessing it are prohibited – keeping it in Germany is practically NOT legal. Mark it in the app as protected and not keepable

Brumation

The larvae overwinter cool in rotten wood (development takes several years); there is no keeper-controlled brumation of the beetles

Cohabitation

Single keeping. Males fight with their mandibles over females and try to throw each other off the branch, so avoid several males together. Pairs (one male, one female) only briefly for mating. The larvae each live in their own wood and are not kept in groups. More important than social behaviour here is the protection status.

Notes

Legally: a protected native species, and keeping or collecting it is prohibited – the app should warn clearly. The larval requirements are extremely high (special oak white-rot wood), with very long development. Only theoretical or legally permitted keeping.

Do you keep this species?

Add your animal to Reptoria – Reptoria reminds you about feeding and shedding. Add your animal for free →

Look for European stag beetle (Lucanus cervus) in the marketplace →

Related species

• Actaeon beetle (Megasoma actaeon) – Intermediate
• Atlas beetle (Chalcosoma atlas) – Intermediate
• Elephant beetle (Megasoma elephas) – Intermediate
• European rhinoceros beetle (Oryctes nasicornis) – Intermediate
• Goliath beetle (Goliathus goliatus) – Expert
• Grall's flower beetle (Eudicella gralli) – Beginner
• Hercules beetle (Dynastes hercules) – Intermediate
• Japanese rhinoceros beetle (Trypoxylus dichotomus) – Beginner

All species in the care wiki →

What you need to start

To keep European stag beetle (Lucanus cervus) you typically need: a suitable enclosure (larvae in white-rotted oak wood or a container; beetles: approx. 40×30×30 cm (keeping them is heavily restricted in Germany)), substrate (Larvae: white-rotted deciduous or oak wood (almost 100 % wood), damp; they pupate in the surrounding soil), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.