Schoenobius scirpus is a moth in the Crambidae family. It was described by Chen and Wu in 2014. It is found in China (Guangxi).
The wingspan is 25–29 mm for males and 30-38 mm for females. Male have rufous forewings with two dark fuscous spots at both the upper and lower angle of the cell, as well as a dark fuscous fascia from the apex to the lower angle of the cell. There is also a blurry longitudinal rufous band from the base to the distal part of the cell. The hindwings are uniform pale fuscous. Females are somewhat paler than males.
The larvae feed on Scirpus grossus.
Schoenobius scirpus Wikipedia
The species name refers to the genus name of the host plant.