Waite Insect and Nematode Collection,
Assessing declines of North American bumble bees (Bombus spp.) using museum specimens. http://link.springer.com/article/10.1007…
Assessing declines of North American bumble bees (Bombus spp.) using museum specimens. http://link.springer.com/article/10.1007…
http://www.springerlink.com/content/mg043gx0n25847tp/?MUD=MP
Interesting that the four species that are most endangered are actually Cuckoo Bees!