In the British children's TV series "The Flumps", what was the name of Perkin and Pootle's sister?

Posey was the name of the sister to Perkin and Pootle in the TV series "The Flumps".

"The Flumps" is a children's programme, created and written by Julie Holder, and produced for the BBC by David Yates. The show was broadcast by the BBC from 1977 to 1988. The plot revolved around the various adventures of a family of furry characters called "The Flumps".

The family was headed by Father Flump who was very clever and often invented things. Mother Flump spent most of her time tidying and did the cooking and often read to the young Flumps, stories from the big book. Perkin Flump was the eldest of the children and often wore a yellow and blue hat. Posey was the only girl and she always wore a bright blue ribbon on her head. Pootle was the youngest member of the Flump family, he often got things confused and he sometimes wore a white hat. Grandfather Flump was the oldest Flump and spent most of his time either in the garden playing with the younger Flumps or playing his Flumpet (musical instrument).