Ephebopus cyanognathus • 3/4 – 1″

Ephebopus cyanognathus (blue fang tarantula) native to French Guiana, captive bred. The bright colors of the spiderling give way to dark colors in the adult, but bright blue chelicerae persist. This small-to-medium-size, obligate burrower will dig straight down to the bottom of its enclosure.


In the Ephebopus genus, E. cyanognathus is the most popular. The brilliantly colored spiderling gives rise to a less brilliant adult, though the blue chelicerae for which the species is named persist. E. cyanognathus is found in the Tresor and Roura Mountains of French Guiana. Other members of the Ephebopus genus have been found in Guyana, French Guiana, Suriname, and northeastern Brazil.

In captivity E. cyanognathus quickly reveals its fossorial nature, digging a tunnel straight down to the bottom of the enclosure. There it will stay, occasionally coming to the tunnel outlet with a display of its blue chelicerae. Here it can be coaxed out with prey.

As much as hobbyists lament pet holes, E. cyanognathus remains steady in demand. Hardy and fast growing, females can reach 3 1/2″ in 1-2 years. At this size they are sexually mature. E. cyangnathus is rather skittish, with small disturbances causing immediate retreat.

The photo above shows a spiderling from a previous batch.

Additional information

Weight 0.01 lbs
Dimensions 1 × 0.5 × 0.5 in