If you’d like to freak out about bee declines but find the honey bee losses a bit too tepid, have a look native bumble bee species:
These graphs, from Cameron et al 2011, show the relative proportion of several species in natural history collections over the past century. Bombus occidentalis, Bombus terricola, and Bombus pennsylvanicus, once extremely common, are now exceedingly rare, leaving a once-rich bumble bee fauna dominated by just a few rather weedy species. The causes of the declines are not known, but they may be related to introduced pathogens and habitat loss.
source: Cameron, S.A., J.D. Lozier, J.P. Strange, J.B. Koch, N. Cordes, L.F. Solter, and T.L. Griswold. 2011. Patterns of widespread decline in North American bumble bees. Proc. Natl. Acad. Sci. 108: 662-667.