Cyriopagopus sp. “Sumatran Tiger” is a large and colourful arboreal tarantula from the subfamily Ornithoctoninae. At a glance it resembles C. schioedtei, but differs from this close relative on many characters.
First of all it is generally darker colored with more bold prominent abdominal markings – hence the tiger in the provisional name. Secondly it is much more robust, with more stout legs than C. schioedtei. It also sports a carapace pattern resembling a dark folium that is conspicuous in postmolt specimens.
It is however the males that definitely distinguishes this species from any other of its relatives, as the males are brown with black legs and white leg banding. Much different from the uniform green or beige males with leg striae that is the normal prototype of the arboreal ornithoctoninaes males.