This terrestrial tarantula is native to Thailand and features a silvery-grey body with subtle tiger-like striping. It is a burrowing species, well-adapted to tropical environments, and exhibits speed and defensive behavior.
Behavior and Temperament: Highly defensive and fast, this species lacks urticating hairs and relies on biting as its primary defense mechanism. It is not suitable for handling or beginner hobbyists.
Habitat and Environment Needs: Native to the tropical forests of Thailand, this species thrives in high humidity (75–85%) and warm temperatures (24–28°C). A deep, moist substrate is necessary for burrowing, along with good ventilation to prevent mold. A terrestrial enclosure with hiding spots is recommended.
Feeding: Feeds on insects such as crickets, mealworms, and roaches. Adults should be fed 1–2 times weekly, with prey appropriately sized to their body.
Additional Information: The Ornithoctonus costalis is a fascinating species for advanced keepers due to its unique appearance and behaviors. Its defensive nature and speed require cautious care. Females can live up to 15 years, while males have a shorter lifespan of 3–4 years.

Thai Silver Grey Earth Tiger Tarantula	Ornithoctonus costalis
Category :	Old World
Type :	Terrestrial
Country of Origin :	Thailand
Adult Leg Span :	10–12 cm
Growth speed :	Medium to Fast
Defense mechanism :	Bites (no urticating hairs)
Diet :	Insects, crickets, roaches
Temperature :	24–28°C
Relative Humidity :	75–85%
Recommended Experience Level :	Advanced