What is a locusts scientific name?

This depends on what kind of locust it is. All belong to the family Acrididae.

Here is a short list:

* Locusta migratoria- the migratory locust

* Nomadracis septemfasciata- the red locust

* Chortoicetes terminifera- the Australian plague locust

* Schistocera americana- American desert locust

* Schistocera gregaria- Desert locust