Female Cobalt Blue Tarantula (Cyriopagopus lividus)

The Cobalt Blue Tarantula (Cyriopagopus lividus) is a striking, Old World tarantula known for its iridescent blue legs and dark body, native to Myanmar and Thailand. It's a fossorial (burrowing) species that lives in deep burrows, making it shy and reclusive, but also defensive and fast, with a painful bite, making it best suited for experienced keepers. They require a deep, moist substrate in their enclosure to facilitate burrowing and good ventilation. 

Key Characteristics

Appearance: Iridescent blue legs contrasting with a dark brown/gray body; females become brighter blue with each molt, while males are more brownish. 

Behavior: Highly reclusive, defensive, and fast; spends most of its life underground. 

Habitat: Native to Southeast Asia (Myanmar, Thailand). 

Venom: Potent and painful, though not lethal to humans; bites cause severe pain and inflammation.