South American Tarantula Species

Semi Aggressive

Brazilian Whiteknee Tarantula (Acanthoscurria geniculata) Jon Fouskaris

Brazilian Whiteknee Tarantula

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The Brazilian Whiteknee Tarantula is a relatively new and exciting species. It is large, and unlike many other large terrestrial tarantulas, it is beautiful. The Brazilian Whiteknee Tarantula is moderately aggressive. When disturbed, a Brazilian Whiteknee Tarantula does not usually bite, but it likes to flick the stinging, airborne urticating hairs that New World tarantulas are famous for using as a defense. The hairs are itchy, and most people get a rash from them, so watch out when you open your Brazilian Whiteknee Tarantula tank. This impressive tarantula can be expensive, but it is definitely worth it! Throughout 1998, the Brazilian Whiteknee Tarantula was the most desired tarantula species available and was in high demand. This tarantula is still a desired species due to it's combination of size, and beauty. The Brazilian Whiteknee Tarantula goes by many different common names, which can be confusing, although they are all similar. Some of the names are listed below. The Brazilian Whiteknee Tarantula makes an unbelievable display tarantula, and is sure to grab the attention of anybody who sees it!

Photo Description: ADULT FEMALE - Specimen provided by Frank Somma. - Photo taken by Michael Fouskaris..


Forests of northern Brazil.




Spiderlings eat pinhead crickets and other small insects. Adults eat crickets, other large insects, small lizards, pinkie mice, and an occasional fuzzy mouse.

Full Grown Size:

7 to 8 inches.

Growth Rate:

Fast speed.


80 to 85? F.


Spiderlings can live in a clear plastic deli-container with air holes. Adults can live in a 10 to 15-gallon tank. Floor space is more important than height.


Semi-aggressive and nervous.


75 to 80%. All tarantulas that have at least a 3" leg span may drink from a shallow, wide water dish.


3 to 4 inches of peat moss, or potting soil.


Logs, driftwood, cork bark, etc. make good hiding places. Moss can be added for floor cover.

Other Names:

Brazilian Whiteknee Birdeater, Brazilian Whitekneed Tarantula, Brazilian White Banded Bird Eating Tarantula, Brazilian Black and White Stripe Birdeater, White Knee Tarantula, Whitekneed Bird Eating Tarantula, Giant White Knee Birdeater, Giant Whitekneed Tarantula, and Santarem Pink Haired Bird Eating Tarantula.

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