Thorp, an emeritus professor of entomology from the University of California at Davis, found one solitary worker last year along a remote mountain trail in the Siskiyou Mountains, but hasn't been able to locate any this year
He fears that the species — Franklin's bumblebee — has gone extinct before anyone could even propose it for the endangered species list. To make matters worse, two other bumblebee species — one on the East coast, one on the West — have gone from common to rare.

Honey Bee Die-Off-Alarm Beekeepers
http://dsc.discovery.com/news/2007/02/05/bees_ani.html?category=animals&guid=20070205144500