Microrestes robustus is a stick insect species native to northwestern Vietnam.

The anterior side margins of the mesonotum are only reinforced with an indistinct hump, while in M. trapezius these are clearly spiny.

They show light, yellowish to orange-colored patterns on a brown ground color, which are more pronounced in the abdomen area.

On the 5.6 to 5.7 millimetres (0.22 to 0.22 in) long head, the supraantennas and the occipitals are present as small blunt spines.

The supraorbitals, procoronals, and anterior coronals are almost continuously fused into two wavy crests that almost touch posteriorly.

[1] The previously known distribution area of Microrestes robustus is in the Vietnamese Hòa Bình, where the first female was collected in 1934, then not yet identified.

Another female was collected in the same province in July 2016 in the Ngổ Luông Nature Reserve on the forest floor in the tropical evergreen rainforest.

In addition, Bresseel and Constant elevated a female from the Muséum national d'histoire naturelle in Paris, collected by A.

[1][2] A breeding stock that was successfully kept until 2020 went back to the female collected by Bresseel and Constant in July 2016.

The nymphs of both sexes that hatched from the eggs of the originally collected female were successfully raised by Krijns and Dittmar with various food plants such as Epipremnum and Arum, which belong to Araceae.