Phymateus aegrotus,[1] sometimes called the blue bush locust[2] or East African bush locust,[citation needed] is a pest species of grasshopper in the family Pyrgomorphidae.

Unlike "locusts" the adults are not known to change their morphology on crowding, but at the hopper stage, marching behaviour of small bands may occur.

As with other Phymateus species it raises and rustles its wings when disturbed and may secrete a noxious fluid from its thoracic joint.

[6] Insects feed on Asclepias sp.. and bittersweet nightshade, Cestrum nocturnum.

This article about a member of the insect family Pyrgomorphidae is a stub.