Family: Buthidae
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> Arachnida > Scorpiones
(scorpions)
> Superfamily: Buthoidea
The buthids are commonly referred to as the
thick-tailed
scorpions and are generally venomous to people, the most venomous genera being Parabuthus and Buthotus.
This is a large and widespread family with
over 500 species occurring on all continents except Antarctica.
Genera indigenous to southern Africa
Parabuthus
(Burrowing thick-tailed scorpions)
Parabuthus is an Afrotropical genus with 20 of
the 28 species endemic to southern Africa. It occurs in areas of less
than 600 mm of rain per annum and is absent in southern Africa from the
extreme Eastern Cape, Kwazulu Natal, much of the Free State and the
Highveld.
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Uroplectes
(Lesser thick-tailed scorpions)
About 40 described species of small to medium (30 to 60 mm) scorpions.
They are very variable in colour; often brightly coloured yellow, orange, brown
and even olive green usually patterned with darker markings. Species can be arboreal occurring under tree bark, in holes in
trees or actively hunting on vegetation or wandering about on the forest floor.
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Hottentotta
Formerly known as Buthotus,
occurs from northern South Africa up through eastern Africa and into the Middle
East and India. In southern Africa there are 3 species (Northern Cape, Namibia,
Limpopo). They occur in sandy areas under stones, logs and
make a 60 to 100 mm deep burrow under succulent shrubs.
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Karasbergia
(Pygmy thick-tailed or Micro thick-tailed scorpions)
One species:
Karasbergia methueni, endemic to the
Northern Cape (Augrabies Falls and Richtersveld region) and into central
Namibia.
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Lychas
(Bark scorpions, tropical thick-tailed scorpions)
This mainly Indian Australasian genus
has 3 African species. One reaches its
southern limit in Zimbabwe and in the northern Kruger National Park.
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Afroisometrus
A single species, Afroisometrus
minshullae, was a species of Lychas until recently placed into a
monotypic genus. The change is taxonomically dubious.
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Pseudolychas (False bark
scorpion)
Three species are known from the
eastern half of South Africa and Zimbabwe. Pseudolychas prefers moist
habitats and has benefited from human development, finding Gauteng gardens to
its liking. Only about 30 mm long, this scorpion is of no medical importance.
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Text and images by Norman
Larsen ©. |