Aedes meronephada (Dyar and Shannon) is removed from the subgenus Stegomyia Theobald and transferred to the subgenus Diceromyia Theobald on the basis of a critical study of all known stages. Both sexes, larva and pupa of this species are redescribed, illustrated and its affinity is discussed. Some morphological characteristics of adults and larvae of the subgenera Diceromyia and Stegomyia of Aedes of the Oriental region are tabulated.