In 2005 Paul D. Brock and Masaya Okada mistakenly described males of this species from Japanese island Miyako-jima.

Tubercles can be found on the posterior lateral area of the third to fifth tergite of the abdomen other species is missing in the females of Orestes guangxiensis.

[1][2] The nocturnal insects, like all members of the genus, are able to achieve an almost perfect phytomimesis by aligning legs and antennae along the body and so hardly from a short broken branch are to be distinguished.

After an average of four months, the nymphs hatch, which have clear carinae along the middle and edges of the body and already have the high and pointed forehead typical of the species which also do not have a flat head in adulthood.

1 'Ba Be' Orestes bachmaensis Li Tianshan collected seven specimens of this species in the Chinese region of in 1991.

A female was deposited at the Entomological Institute of the Chinese Academy of Sciences in Shanghai as holotype.

[9][10] Brock and Okada transferred the species back to the genus Pylaemenes in 2006 and described their males from the Ryūkyū Islands.

[7] The first and so far only parthenogenetic stock in European terrariums goes back to females that were collected by Seow-Choen and Brock in Hong Kong in 1996 and which they named in 2000 as Pylaemenes hongkongensis.

Another parthenogenetic breeding stock, which was introduced from the north of Taiwan in 2008, was initially referred to as Pylaemenes guangxiensis 'Taiwan'.

It was initially called Pylaemenes guangxiensis 'Okinawa', having been collected on Okinawa by Kazuhisa Kuribayashi who named it that, following Brock and Okada (2005).