One of the larger species of tarantula, the Chaco golden knee (Grammostola pulchripes), formerly known by Grammostola aureostriata, can be expected to reach between 20–22 cm (8.5 in). The Chaco Golden Knee tends to be one of the more docile and calm species of tarantula and therefore makes an attractive first pet. The Chaco is an opportunistic burrowing terrestrial tarantula: they tend to burrow while younger and adopt a pre-existing hide as its home when it begins to mature. It is quite flashy in appearance, bearing long light-colored hairs all over its body and gold stripes on its legs, particularly at the "knees". This is a good display species as it often sits in plain view. When it was first imported into the pet trade, it was thought to be a variant of the Pink zebra beauty species, but it is significantly larger and can easily be distinguished by those familiar with both species.
The former (and very commonly used) species name aureostriata is derived from Latin aureus "golden" and striatus "striped".
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