New taxonomic results on the Pyraustinae of the Southern Arabian Peninsula are presented on the basis of a sample collected in the south-western province Dhofar of the Sultanate of Oman. The specimens are attributed to the tribe Pyraustini of the subfamily Pyraustinae on the basis of synapomorphies in external characters, the male genitalia and the tympanal organs. Examination of the male genitalia and comparison with potentially related genera revealed significant differences, which are classified as autapomorphic character states. These autapomorphies result in the description of the new genus Scirpobotys gen. nov. The genus is at present monotypical. Its type species is Scirpobotys xanthosomalis gen. nov. sp. nov. The external character states of the new genus and the new species, the male genitalia and the tympanal organs are described and figured. The synapomorphies shared with the closest related congeners and the diagnostic characters of the new genus are listed. The female of the new genus is still unknown.