Bald-faced hornet from mid-April to early October, and reproductives were produced from mid-July through the end of November. Onset of male output usually precedes that of queen output in social wasps, however here "D. maculata" is an exception to this trend. Energy investment by workers required to produce reproductives is considerable. Newly emerged males and queens are no more functional than pupae; both depend heavily on solid prey brought in by workers, thus competing with larvae for food resources. As a result, worker quantity must remain high in order to maintain reproductive output. Workers must maintain food stores and defend the nest,
HMS Hornet (1911) HMS Hornet (1911) HMS "Hornet" was an "Acheron"-class destroyer of the Royal Navy that served during the First World War and was sold for breaking in 1921. She was the seventh Royal Navy ship to be named "Hornet", after the insect. She was built under the 1910-11 shipbuilding programme by John Brown & Company of Clydebank, Glasgow. She (and her sister ships and ) differed from the standard Admiralty I-class destroyer in only having two shafts instead of three. They had two Brown-Curtis type steam turbines, and twin boilers. Capable of , she carried two guns, other smaller guns and