Bald-faced hornet hydrocarbons serve as a barrier to moisture diffusion and thus prevent dehydration in wasps. Cuticular hydrocarbon profiles vary over species and nests, and so cuticular hydrocarbons are a proposed mechanism for nest-mate recognition. Worker and queen cuticular lipids have similar components, but their distributions differ dramatically, implying that cuticular hydrocarbons also play a role in caste differentiation. The following lipid profiles were determined from specimens collected in the summer and early fall of northeastern Georgia in 1989. The dominant hydrocarbons recovered from the cuticles of workers were n-alkanes and methyl branched and dimethyl branched alkanes with a C27 or a
Rabun Bald Rabun Bald Rabun Bald, with an elevation of , is the second-highest peak in the U.S. state of Georgia; only Brasstown Bald is higher. It is immediately southeast of Sky Valley, Georgia, and is the tallest mountain in the county. An observation tower on the summit provides hikers with views that, on clear days, extend for more than . The hike to the top of Rabun Bald is round trip via the Rabun Bald Trail. The Rabun Bald Trail connects with the Bartram Trail system, which passes over the top as it winds through northeast Georgia for . According to