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Chinese Swimming Scorpion (Lychas mucronatus)

Lychas mucronatus

The Lychas mucronatus, commonly sold as the 'Chinese Swimming Scorpion'. It is a small and neurotic arboreal-terrestrial Buthid (1.5-2.3 inches). Mottled colored with brown, yellow and black, it possesses a slender silhouette with filiform pincers and elongated tail. Contrary to the catchy commercial name, it is NOT an aquatic animal: it can float and move on water for short stretches (adaptation to alluvial forests), but will drown if kept in an aquarium. Extremely fast, prone to sting and equipped with a moderately painful venom, it requires a very humid tropical terrarium with large dry areas (barks and wet peat), proving to be a terrible guest for paludariums or semi-aquatic terrariums.

Taxonomy
Class:Arachnida
Order:Scorpiones
Family:Buthidae
Genus:Lychas
Species:Lychas mucronatus

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Environment

Terrestrial

Humidity

65 - 75 %

Day temperature

25 - 30 °C

Night temperature

22 - 24 °C

UVB

None

Species description

Geographic Origin and Habitat: This recovery makes no geographic-origin or habitat statement beyond the cited facts above.
Taxonomy and Genetics: GBIF Backbone Taxonomy lists Lychas mucronatus (Fabricius, 1798) at species rank. GBIF Backbone Taxonomy places Lychas mucronatus in the order Scorpiones, family Buthidae and genus Lychas. This recovery makes no genetic statement beyond the cited facts above.
Behaviour and Habits: This recovery makes no behavioural statement beyond the cited facts above.
Morphology and Sexual Dimorphism: This recovery makes no morphological or sex-comparison statement beyond the cited facts above.

Care, breeding and tankmates

Terrarium Setup: Lychas mucronatus is widely distributed in Southeast Asia and southern China. This recovery carries no enclosure-dimension 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: The article states that L. mucronatus can often cause human accidents. This recovery does not provide a first-aid, clinical, or treatment protocol.

Geographic Origin and Distribution

This species originates from: Sud-est Asiatico (Foreste pluviali allagate, vegetazione ripariale in Cina del Sud, Tailandia, Indonesia).

Origin

South and Southeast AsiaEast Asia

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
6.5 cm
The catalog's scalar value is 6.5 cm. The Lychas mucronatus venom study source reports a maximum adult measurement of 6.5 cm for this species, recorded as total length (TL). The taxonomic record consulted is Lychas mucronatus. 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.

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Last updated: 08/10/2026