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I found this spider at a place called Guadalest in Costa Blanca in Southern Spain. Its about 5/6cm in size and completely black. Does anyone know what it is?
Curiously, tarantulas get their name from a spider that is found in the Spanish town of Taranto, though actually that particular spider (Lycosa Tarantula) is not a tarantula!
Tarantulas cover several genera, and yours is in the genus Ischnocolus.
In Spain there are three species: I. andalusiacus, I. holosericus, I. valentinus.
Differentiating these species is difficult, and it has been proposed that all three should be referred to as Ischnocolus valentinus (2nd reference below).
Based on its size, yours is a female (males are much smaller).
- I. holosericus - http://www.agefotostock.com/en/Stock-Images/Rights-Managed/BWI-BLWS006280
- I. valentinus - http://www.granadanatural.com/ficha_fauna.php?cod=315
There are other black tarantulas elsewhere in the world, eg.Brazil and Thailand, but none of those occur in Spain.
In summary, I suggest you consider your spider a female Spanish tarantula, Ischnocolus valentinus.