Theramenes is a genus of medium-sized stick insects in the tribe Obrimini, which is native to the Philippines and to the Indonesian Talaud Islands.

The micropylar plate runs parallel-sided almost over the entire length of the egg and splits in a Y-shape narrow the lower pole.

[4] The locality given for the holotype of Theramenes olivaceus with Ceylon[2] (today Sri Lanka) is probably a result of confused labeling.

The Talaud Islands were assumed to be the actual location early on,[3] from where all other finds of the species originate.

[9] The genus name, like that of many genera described at the time, refers to a person from ancient Greece, in this case the politician Theramenes.

In the introduction to his work, he justified the renaming with the fact that Carl Brunner von Wattenwyl and Redtenbacher[3] did not always take into account the genera described first when naming the subfamilies they established - and as such he also regards the tribes described by both had.

[11] In the case of the Obriminae this is not true, since both the genus Obrimus and Theramenes were established at the same time by Stål in 1875.

[14] On August 6, 2015, Franz Seidenschwarz found a pair of Theramenes mandirigma and thus also the first female of this species, of which only three males were known until then.