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![Lychas marmoreus [ Original photo copyright © Dr Julian White ]](images/scorpions/SCPT00021.jpg)
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Family: Buthidae
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Genus: Lychas
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Species: marmoreus
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Region
Australia
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Countries
Australia
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Taxonomy and Biology
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Adult Length ( mm ): 25 mm
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Description
Carapace and tergites are pale brownish yellow with dense brown variegations. Metasomal segments I to III are pale brownish yellow densely variegated with brown and becoming progressively darker on segments IV and V with telson vesicle darkest. Pedipalps are brownish yellow densely variegated with brown and with fingers darker ( but sometimes pale tipped ) than manus. Ventral surface and sternites are yellowish to yellowish brown with brown variegations. Legs are yellow densely variegated with brown.
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Venom
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General: Venom Neurotoxins
Unknown
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General: Venom Myotoxins
Unknown
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General: Venom Procoagulants
Unknown
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General: Venom Anticoagulants
Unknown
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General: Venom Haemorrhagins
Unknown
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General: Venom Nephrotoxins
Unknown
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General: Venom Cardiotoxins
Unknown
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General: Venom Necrotoxins
Unknown
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General: Venom Other
Unknown
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Clinical Effects
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General: Dangerousness
Mild envenoming only, not likely to prove lethal
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General: Rate of Envenoming: Unknown but likely to be low
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General: Untreated Lethality Rate: Unlikely to prove lethal
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General: Local Effects
Local pain & swelling
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General: Local Necrosis
Does not occur, based on current clinical evidence
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General: General Systemic Effects
Variable non-specific effects which may include headache, nausea, malaise. These only occur in a minority of cases.
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General: Myotoxicity
Does not occur, based on current clinical evidence
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General: Coagulopathy & Haemorrhages
Does not occur, based on current clinical evidence
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General: Renal Damage
Does not occur, based on current clinical evidence
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General: Cardiotoxicity
Does not occur, based on current clinical evidence
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General: Other
Does not occur, based on current clinical evidence
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First Aid
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Description: First aid for scorpion stings (in areas where no potentially dangerous species may be found)
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Details
1. Reassure the victim. Despite sometimes intense local pain, usually lasting less than one hour, these scorpions are not able to cause major of lethal envenoming and most stings will settle rapidly.
2. Do not apply a bandage or tourniquet, or cut, suck or incise the wound or apply electric shock. Neither the application of local heat or cold are proven as effective.
3. If the victim develops general symptoms or the pain remains severe after one hour, seek medical advice.
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Treatment
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Treatment Summary
Stings cause predominantly local effects of short duration, usually not requiring medical treatment. No antivenom is available or indicated.
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Key Diagnostic Features
Local pain, can be severe & last 2 hrs
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General Approach to Management
Most cases will be minor & not require admission.
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Antivenom Therapy
No antivenom available
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![Lychas marmoreus [ Original photo copyright © Dr Julian White ]](images/scorpions/SCP00021.jpg)
