There are 5 tabs at the top of the Flutterpedia. The first shows all your moths, their levels, information and what attraction flowers you require to incubate moths.
The second tab has all your Decorations with the accompanying information in it. The third shows all your Missions, which ones you have completed and which ones are available.
The third tab is a list of all your Goals. This includes how you are progressing and which ones you have completed.
The last tab is a 'how to' section! Click on this for a refresher course on gameplay.