Keeper guide

Skeleton Leg Tarantula Temperature Guide — Ephebopus murinus

A practical temperature range for Ephebopus murinus, commonly known as the Skeleton Leg Tarantula, is 22–26°C. Stable room conditions matter more than chasing tiny changes on the thermometer.

At a glance

Quick facts

World
New World
Origin
French Guiana, Suriname and Brazil
Lifestyle
Fossorial
UK hobby rarity
Uncommon
Maximum size
About 12–15 cm (4.5–6 in)
Growth rate
Moderate
Male lifespan
Around 3–4 years
Female lifespan
Often 10–15 years
Temperament
Fast, reclusive and defensive when exposed; usually retreats into the burrow
Venom
Venomous, but bites are not generally considered medically significant; urticating hairs are an important contact hazard
Temperature
22–26°C
Moisture / humidity
Moisture-dependent fossorial setup with damp lower substrate, a drying surface, water and strong cross-ventilation
CITES
Not CITES-listed

Working temperature range

Keep Ephebopus murinus around 22–26°C. Use that as a practical captive range and avoid prolonged exposure to temperatures well outside it.

Skeleton Leg Tarantulas do not need the enclosure to hit one exact number all day. Normal small room fluctuations are easier to manage than repeated heating and cooling adjustments.

Measure the shelf, not just the room

Check the temperature where the Ephebopus murinus enclosure actually sits. Shelves near windows, radiators, computers or external walls can differ from the centre of the room.

A thermometer placed near the enclosure gives more useful information for a Skeleton Leg Tarantula than a reading taken across the room.

Avoid direct heat on the enclosure

Do not attach a heat mat directly to an Ephebopus murinus enclosure. Small containers can develop concentrated hot areas that are much warmer than the surrounding room.

If the room is genuinely too cold for Skeleton Leg Tarantulas, warm the room instead and check the temperature at enclosure level. That gives a more even and controllable result.

Summer heat

During hot weather, keep Ephebopus murinus out of direct sunlight and watch rooms that heat up during the afternoon. A closed window area can become much warmer than expected.

Do not respond to a warm day by soaking the Skeleton Leg Tarantula enclosure. Temperature and substrate moisture are separate husbandry issues.

Winter conditions

In winter, check the coldest part of the day where Ephebopus murinus is kept. Rooms can cool overnight even when daytime readings look comfortable.

If room heating is used, remember that it may also dry Skeleton Leg Tarantulas enclosures faster. Adjust watering to the actual drying rate rather than assuming winter always means wetter substrate.

Use behaviour as context

Temperature readings for Ephebopus murinus should be considered alongside normal feeding, retreat use and moulting. One slightly different reading is less useful than a consistent pattern over time.

If a Skeleton Leg Tarantula suddenly changes behaviour, check temperature along with water, moisture and recent disturbance instead of assuming temperature is the only cause.