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
HMS Hornet (1794) 243 tons burthen, and was armed with sixteen 9-pounders. She too had a crew of 30 men.</ref>|group=Note}} "Hornet" was refitted for £3,554 at Portsmouth in June and July 1799. In August "Hornet" was part of the British fleet that captured the Dutch fleet in the Vlieter Incident. Nash then sailed "Hornet" to the West Indies. In 1800 she accompanied a convoy to the West Indies. While at Guadeloupe in October, a boat from "Hornet" attempted to press some men off the "New Ceres", whose crew resisted, killing "Hornet"s second lieutenant, and wounding another crewman. The next day "Hornet" tried again,