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Giant Madagascar Scorpion (Grosphus grandidieri)

Teruelius grandidieri

The Grosphus grandidieri, the 'Giant Madagascar Scorpion'. It is the most imposing representative of the genus Grosphus, exclusive (endemic) to Madagascar, capable of reaching 3.5-3.9 inches. Like all Buthids, it has a filiform silhouette, but is distinguished by its reddish-brown color with pale legs, and a venom that, although not lethal, causes acute pain. Inhabitant of the dry Malagasy forests, it is a terrestrial opportunist that takes refuge under roots or debris. Fast and active at night, it requires a dry-desert terrarium, sand and a rigorous African heat, proving to be a precious collector's item for breeders of hot (venomous) species thanks to its tolerance to gregariousness.

Taxonomy
Class:Arachnida
Order:Scorpiones
Family:Buthidae
Genus:Teruelius
Species:Teruelius grandidieri
Formerly known as:Grosphus grandidieri

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Environment

Terrestrial

Humidity

60 - 70 %

Day temperature

26 - 30 °C

Night temperature

22 - 24 °C

UVB

None

Species description

Geographic Origin and Habitat: The published treatment lists material from Toliara Province in southwestern Madagascar, including a riparian-valley locality. It does not establish the full range.
Taxonomy and Genetics: The treatment uses Teruelius grandidieri (Kraepelin, 1901) comb. n.
Behaviour and Habits: No species-specific behaviour is measured.
Morphology and Sexual Dimorphism: The treatment records both male and female material, but this recovery does not extract a diagnosis or a captive identification rule.

Care, breeding and tankmates

Terrarium Setup: A taxonomic treatment records one Teruelius grandidieri male in Antevankira forest near the Antsakabe River, in a riparian valley and a rotten tree trunk. This is a documented collection record, not an enclosure or substrate prescription.
Lighting and Heating: This recovery sets no photoperiod or temperature target.
Humidity and Hydration: This recovery sets no humidity or watering target.
Feeding and Supplementation: This recovery sets no feeding or supplementation protocol.
Compatibility and Coexistence: This recovery makes no cohabitation recommendation.
Health and Common Diseases: This recovery provides no health, disease, or treatment protocol.

Geographic Origin and Distribution

This species originates from: Madagascar (Foreste secche decidue e savane spinose del Madagascar meridionale).

Origin

Extra-Amazon South AmericaNorth AmericaAfrica and Madagascar

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
10 cm
The catalog's scalar value is 10 cm. The Lowe & Kovařík — Teruelius grandidieri source reports a maximum adult measurement of 10 cm for this species, recorded as total length (TL). The taxonomic record consulted is Teruelius grandidieri. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Venom level
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Last updated: 08/10/2026
Giant Madagascar Scorpion (Grosphus grandidieri) (Teruelius grandidieri) Care Guide & Terrarium Setup | Atlarium