Surname Locusta (Locust 
, Locusta 
, Locuste 
) , around the globe, is a rare family name. The family name Locusta is characteristic of Italy, where it is a rare surname, the United States, and New Zealand. Measured by absolute frequency, the name is most common in the United States, Italy, and France. Much less frequently, Locusta is the forename as well as the last name.