Luna

Lunar is one of Stampy's newest dog.She was born in Christmas.

In episode 262 She was taken out to build Douse the House.

In episode 265 She was taken out to build Harriet's house.

Trivia:

She has a pink collar.

Some people on this wiki call her Luna but that name is wrong because if you watch episode 265 there is a sign in the doghouse named Lunar.