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Acanthoscurria geniculata (Giant White Knee Tarantula) 2 1/2" ***JUVENILE FEMALE*** ♀️♀️♀️♀️ IDJ59


If you purchased a sexed tarantula: We guarantee the sex of your tarantula for three months or until the next molt.  I know that might sound silly at first, but we want to prevent you from raising up a tarantula for years only then to be hit with the surprise of a mature male.  This also prevents someone from coming back to us years later and telling us they purchased a female but there may be no record of the purchase or there may be a question of if that particular tarantula was from Fear Not.  So to avoid all those unpleasant possibilities, we ask that either you verify the sex with the next molt yourself,  or send it in a vial and we will sex it under the microscope again.

We do not sell a tarantula as sexed unless we are as certain of the sex as we can be using a molt to confirm, but mistakes are possible.


This is an impressive heavy-bodied species that makes a spectacular display tarantula as it stays out in the open most of the time. Of the large, terrestrial spiders, this is certainly one of the most beautiful. These rather bold creatures begin to have adult coloration early on, making them them look like miniature adults when they are still quite young. They are hardy, easy to care for, and feeding time is always a spectacle! 

Name and Description History:
Mygale geniculata C. L. Koch, 1841
Scurria geniculata C. L. Koch, 1850
Acanthoscurria geniculata Ausserer, 1871

New World, Terrestrial
Size: Can reach up to 8.5″
Growth Rate:  Medium-Fast. After about eight months, I have some from the same sac that range from 2″ to nearly 4″.
Natural Habitat: They are native to Brazil where the average temperature is in the mid 70s.
Housing Needs: Terrestrial setup. Humidity needs are low. My large female frequently splashes water from her water dish onto the substrate to make a moist area to sit on.
Temperament and Defensiveness: They have urticating hairs that can be very irritating. Kicking these hairs is their first line of defense. Their venom potency is said to be ‘average’, but they do have very large fangs.

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