Euthycaelus colonica (Venezuelan Orange and Bronze)

Euthycaelus colonica is a striking and rarely encountered terrestrial tarantula native to the montane and cloud forests of Colombia and Venezuela. Belonging to the Theraphosinae subfamily, this medium-sized species is admired for its contrasting coloration—dark chocolate to black body tones highlighted by copper-red abdominal setae and faint bronze iridescence across the carapace. In its natural environment, E. colonica inhabits humid forest floors rich in moss, decaying wood, and leaf litter, where it establishes silk-reinforced retreats or shallow burrows under roots and stones. It is a secretive, reclusive species that relies on its camouflage and speed rather than aggression when threatened. In captivity, it thrives in enclosures with deep, moist substrate, ample hiding places, and consistent humidity—reflecting the cool, damp microclimates of its montane habitat. Although shy, E. colonica rewards patient keepers with subtle beauty, calm behavior, and intriguing nocturnal activity.

• Scientific Name: Euthycaelus colonica

• Adult Leg Span: 4.5–5.5 inches

• Country of Origin: Colombia, Venezuela

• Habitat: Montane Cloud Forest (800–1,400 m elevation); loamy and moss-covered soils with heavy rainfall, ambient temperatures 70–78°F, relative humidity 80–90%, and consistent moisture year-round

• Habits: Terrestrial / Burrowing

• Growth Rate: Moderate