Picnic Bug

From Muppet Wiki

Picnic Bug is a type of insect that happens to come around Picnics. But this one talks and is one really happy guy. He helps out the gang over at The Cat's Playhouse when they were going to head out for a picnic but it starts to strom outside so they end up having it inside.

He was featured in the episode The Cat in the Hat's Indoor Picnic of The Wubbulous World of Dr. Seuss.