Tapinauchenius rasti (Caribbean Diamond Tree Spider)

Tapinauchenius rasti, commonly known as the Rast’s Arboreal Tarantula, is a visually striking and recently described species native to the tropical forests of French Guiana and Suriname. This elegant arboreal tarantula features a deep bronze-to-chocolate coloration with subtle violet iridescence across the legs and carapace, creating a refined, understated beauty compared to the more vivid T. violaceus. The species was named in honor of German arachnologist Bastian Rast and stands out within the genus for its calm yet alert temperament and slightly heavier build. In the wild, T. rasti inhabits mature lowland rainforest environments, occupying tree hollows and dense vine systems where it constructs silk-lined retreats that maintain moisture and airflow. It is a fast, reclusive species that relies on speed rather than threat displays when startled. In captivity, it thrives in vertically oriented enclosures with ample cork bark and high humidity, making it a graceful and highly rewarding display species for keepers who appreciate the subtler tones of arboreal tarantulas.

• Scientific Name: Tapinauchenius rasti

• Adult Leg Span: 4.5–5 inches

• Country of Origin: French Guiana, Suriname

• Habitat: Lowland and Foothill Rainforest (100–700 m elevation); dense canopy zones with consistent rainfall, ambient temperatures 76–84°F, and humidity 80–90%, typically found in hollow branches and vine tangles near shaded understories

• Habits: Arboreal

• Growth Rate: Fast