What is "bolbe"

In Greek mythology, Bolbe (; ) was an extremely beautiful lake goddess or nymph who dwelled in a Macedonian lake of the same name (modern Lake Volvi). She was the daughter of Oceanus and Tethys. Like other lake gods and goddesses, Bolbe's offspring were Limnades, nymphs who live in freshwater lakes. According to Athenaeus, Bolbe was the mother of Olynthus by Heracles.

Bolbe is a genus of praying mantises, sometimes called by the common name Ground Mantis, that is found in Australia. It is in the family Iridopterygidae of the order Mantodea, the mantis.