Here is the full list of all 19 Webbed achievements.
Complete your sticker book
Eat every fly
Help all the baby spiders home
Bring all the pollen to the queen
Find all the golden webs
Pull the spider-bot out of the rubble
Recover all the ant larvae
Send the bird away
Weave 1000 webs
Reunite with your boyfriend
Roll a dung ball down the hill
Help Mike and Wendy cross the puddles
Wear a helmet
Get a lift home from a bee
Earn your own skateboard
Weave your first web
Finish the main story without eating a single fly
Travel 20 meters without landing on solid ground.
Dance with every species of bug