We have something here for whatever science you teach!
All links are organized by category.
List of World Bumblebees - http://www.nhm.ac.uk/research-curation/research/projects/bombus/index.html
The Natural History Museum, London indexes bumblebees (genus Bombus) of the world at List of World Bumblebees. The list is searchable by biogeographic region or species name. There is a map showing bumblebee densities of the world, a scatterplot showing the relationship between date of first description, taxonomic synonymies and range size, links to references. There is also a clickable cladogram with links to biogeographic maps and information. There are colorful images of bumblebees, too (.gif).