Acanthopelma beccarii is a species of spider belonging to the family Theraphosidae (tarantulas). It is endemic to Guyana

Guyana

Guyana , officially the Co-operative Republic of Guyana, previously the colony of British Guiana, is a sovereign state on the northern coast of South America that is culturally part of the Anglophone Caribbean. Guyana was a former colony of the Dutch and of the British...

in northern South America.

While there are specimens held in captivity, it is not a very popular species in this regard.

Further reading

(1947): "Diagnosi preliminari de specie nuove di aracnidi della Guiana Britannica raccolte dai professori Beccari e Romiti". Monitore Zoologico Italiano 56: 20-34.