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Opistophthalmus karrooensis (Purcell, 1898)

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Opistophthalmus karrooensis (Purcell, 1898)

karroo1.jpgPicture by paul

Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from Touwsberg Nature Reserve.

A species that is extremely common in the Klein Karoo and surrounding Groot Karoo as well.
They can become quite large, easily reaching the 10cm mark as adults but are completely harmless to humans.

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Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from Fraserburg

A species that is extremely common in the Klein Karoo and surrounding Groot Karoo as well. They can become quite large, easily reaching the 10cm mark as adults but they are completely harmless to humans.

karro3.webpPicture by paul

Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from Plathuis

An impressive species that's incredibly abundant in the Klein Karoo.

karro4.jpgPicture by paulbester

Female Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from Simonskloof

karro5.jpgPicture by paulbester

Male Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from De Rust

The males of this species have extremely elongated chelae which has been theorised to function for either one or both of the following situations:
By natural selection for prey capture as males are much more mobile than the sedentary females and can actively hunt for prey; thus the chela fingers have a wider gap and faster closing speed than the bulky chelae on females meaning they can subdue smaller prey more easily and faster.
By sexual selection; because of the same features as mentioned above, it would help in controlling the slower and heavier chelae of the females during the mating process and being able to keep the female at a larger distance so as not to be overpowered and killed.

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Male Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from De Rust

karro derust.jpgPicture by paul

Female Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from De Rust

karro7.jpgPicture by paul

Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from near Laingsburg.

karro.jpgPicture by paul

Opistophthalmus karrooensis (Karoo Burrowing Scorpion) from Touwsberg Nature Reserve