Acanthoscurria geniculata (Brazilian White-Knee Tarantula)
Country of Origin: Brazil
The Name:
The genus name “Acanthoscurria” derives from Greek, where “acantho” means “spine” and “scurria” means “to run,” reflecting their spiny appearance and agile movements. The species name “geniculata” comes from the Latin word “geniculum,” meaning “little knee,” referring to the distinctive white knees that contrast with its dark body.
Natural Environment and Behavior:
In its natural behavior, this tarantula exhibits terrestrial tendencies, preferring to spend a significant portion of its time on the forest floor. Known for its burrowing abilities, it creates silk-lined burrows for shelter and protection. In captivity, providing an appropriate substrate that allows for burrowing is essential to replicate its natural behavior.
Although generally calm, this species can display a defensive posture and flick urticating hairs if disturbed, so caution should be exercised during handling to avoid stress.
As an opportunistic feeder, the Giant White Knee preys on various small invertebrates in its native habitat. In captivity, it is typically fed live insects, such as crickets or roaches, to meet its dietary needs. Its primarily terrestrial lifestyle means it spends a considerable amount of time on the ground or in its burrows, occasionally venturing out for feeding.
To ensure the well-being of this tarantula in captivity, it is crucial to create an environment that accommodates its burrowing instincts and maintain a secure enclosure.
Longevity:
Females: up to 15 years
Males: 5 to 8 years
Size:
Ranges from 18 to 22 cm.
Husbandry:
Maintain humidity between 60-70% and temperature between 22-26°C. Use a mixture of peat moss, vermiculite, coconut fiber, and soil for substrate firmness.
Enclosure Size:
Slings: Approximately 5-10 cm in length and width is suitable.
Juveniles: Transition to an enclosure with dimensions of approximately 15-20 cm.
Adults: Dimensions of 30x30x30 cm for sub-adults and slightly larger with 45x45x45 cm for adults.