The subgenus Sinoaedes is transferred from the genus Aedes and placed in synonymy with the subgenus Mattinglyia of the genus Heizmannia. The haplotype of Sinoaedes, Aedes occidentayunnanus, is transferred to the subgenus Mattinglyia of the genus Heizmannia and the spelling of the specific name is corrected to agree in gender with Heizmannia. Rationale for these actions is provided.