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