Acanthoscurria geniculata
Brazilian Whiteknee
10 active listings · Spiders
Category
Spiders
Origin
Brazil — Eastern Amazon (Pará)
Lifestyle
Terrestrial
Difficulty
Beginner
Venom potency
Weak
About the species
Brazilian Whiteknee (Acanthoscurria geniculata) is a large, terrestrial tarantula from Brazil. Adults reach about 8 cm in body length, and the leg span may reach about 20 cm. The species is distinguished by dark colouration with contrasting pale bands on the legs and a massive build. It grows relatively quickly and usually shows a very decisive feeding response, making it one of the more striking tarantulas for observation.
Origin and distribution
Brazil — Eastern Amazon (Pará)
The species is endemic; its range is restricted to Eastern Amazon (Pará) within Brazil.
Current listings
TRUSTEDAcanthoscurria geniculata Tarantula, L1
15.00 PLN
Available: 98 pcs.UnsexedL1Rebel Paradise- TRUSTED
Acanthoscurria geniculata Female Tarantula 3.5DC
100.00 PLN
Available: 19 pcs.FemaleRebel Paradise 
TRUSTEDFemale Acanthoscurria geniculata
200.00 PLN
Last piece!Female6DC cmMichał Kownacki
TRUSTEDA birdhouse for beginners
60.00 PLN
Last piece!Unsexed3,5Dc cmarthopodki
TRUSTEDAcanthoscurria geniculata Female (6.5cm) - White-collared Birdwing.
80.00 PLN
Available: 8 pcs.Female6,5 cmspidersworld.eu
TRUSTEDAcanthoscurria geniculata (1.5 cm) – White-kneed tarantula
30.00 PLN
Available: 10 pcs.Unsexed1,5 cmspidersworld.eu
TRUSTEDAcanthoscurria geniculata (white-kneed tarantula) – for beginners
45.00 PLN
Available: 2 pcs.Male2-2,5DC cmreptilesbrothers.pl- TRUSTED
Acanthoscurria geniculata (white-kneed tarantula) – for beginners
150.00 PLN
Last piece!Female5-5,5DC cmreptilesbrothers.pl 
TRUSTEDFemale 2.5dc
80.00 PLN
Last piece!Female2.5 cmL8majkelrooshi
TRUSTEDAcanthoscurria geniculata L7
40.00 PLN
Available: 4 pcs.Unsexedspidersgodeu
Care at a glance
Size
About 8 cm body length; leg span up to approx. 20 cm
Enclosure type
Horizontal, suited to a large terrestrial species
Substrate
A thicker substrate layer that allows digging, with a slightly more humid section
Furnishings
A stable hide and constant access to fresh water
Conditions
Moderate humidity and good ventilation; avoid constantly wet substrate
Characteristics
Fast growth and a very strong feeding response
Care and behaviour
As a terrestrial species, Acanthoscurria geniculata needs sufficient floor space and stable substrate above all. The enclosure should provide a thicker substrate layer, a hide, and constant access to fresh water. Part of the substrate may remain slightly damp, but constantly wet conditions should be avoided and good ventilation provided.
The species grows quickly and is known for a very decisive response to food. Because of its large body mass and terrestrial lifestyle, the height from which the spider could fall should be limited. An enclosure that is too tall increases the risk of abdominal injury, so horizontal space is more important than height.
Adult females are long-lived and may live for more than a decade; husbandry records indicate that some may reach around 20 years. Males live markedly shorter lives. The species is best treated as an animal for observation, limiting direct contact to situations in which it is genuinely needed.
Good to know
Acanthoscurria geniculata has urticating hairs that it may use when threatened. Contact with them can irritate the skin, eyes, and mucous membranes. Individual behaviour can vary — from withdrawal to a decisive defensive response — so when working in the enclosure it is worth being cautious, avoiding sudden movements, and limiting unnecessary handling of the spider.