And by the shape of the male palpal bulb with a narrow base.

The tarantula is dark brown in color with either some darker or whiter patches.

[1] This tarantula is found in "Cueva del diablo", it is named as such after a legend.

The cave is about 2 km long, in some of the deeper areas it is necessary to bring equipment to breath, as there is a lack of oxygen.

In the beginning all seems calm, but the deeper they go, the more they notice that the old man is the devil himself.