Stictopleurus crassicornis is a species of scentless plant bugs belonging to the family Rhopalidae, subfamily Rhopalinae.

[1][2] Stictopleurus crassicornis can reach a length of 6.7–8.2 millimetres (0.26–0.32 in).

[3] These bugs have a punctuated pronotum, a banded connexivum and a rounded or pointed tip of the scutellum.

In the anterior margin of the pronotum there are two small dark brown markings quite difficult to discern.

[3] This species is widespread in most of Europe and in Northern Asia (excluding China).