The author gives a key to the Swedish species of Merismus Walk. Only M. megapterus Walk. was known before from Sweden; now he is adding four species: M. splendens V. Grah., M. nitidus (Walk.), M. rufipes Walk. and M. lasthenes (Walk.). A new genus Cirdania gen. n. is described with type-species Cirdania styliclava sp. n. from province SkÅne (Scania).