The species is so far only known from a single female who was found on May 28, 1991 at waterfalls in Port Barton 120 km northeast of Puerto Princesa, the capital of the province of Palawan.

[3] In contrast to this, in Trachyaretaon gatla the supraanal plate (epiproct), ie the eleventh tergite as well as the seventh sternite of the abdomen are clearly notched.

On the head the supra-antennals protrude, the medial coronals are arranged in a circle with two small spines inside.

On the mesonotum there are short but broad premedial spines and four median mesonotals arranged in a group.

It was declared as holotype of the species and is in the author's collection, which, according to him, is affiliated with the Zoological Museum of the University of Kiel,[1] but is not available there.

The species name "gatla" is derived from the Filipino Tagalog language and means there roughly "notched".