There are five different bugs which can be found in jars around Skyrim.
Image Name Weight Value Location 
Bee in a Jar 1 1 Goldenglow Estate 
Butterfly in a Jar 1 1 Alchemist's Shack 
Dragonfly in a Jar 1 1 Dushnikh Yal Cellar 
Moth in a Jar 1 1 Duskglow Crevice
Torchbug in a Jar 1 1 Frostflow Lighthouse
