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