Aha ha is a species of Australian wasp, named by the entomologist Arnold Menke in 1977 as a joke. Menke described how, when he received a package from a colleague containing insect specimens, he exclaimed "Aha!".The name of the insect is commonly found in lists of bizarre scientific names.  The name was also used as the vehicle registration plate of Menke's car, "AHA ha".
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