Milkweed Grasshopper

Scientific Name: Phymateus morbillosus

Order & Family: Orthoptera: Pyrgomorphidae

Size: 70mm to 100mm (approximately 2.7 to 4 inches)

Milkweed Grasshopper

Natural Habitat

Savannas, semi-arid regions, and shrublands across Southern Africa.

Diet & Feeding

Herbivorous; primarily feeds on poisonous plants like milkweeds (Asclepiadaceae).

Behavior Patterns

Diurnal; notable for its slow movements and aposematic (warning) coloration. When threatened, it can secrete a noxious, foul-smelling foam from its thoracic joints.

Risks & Benefits

Risks: Toxic if ingested due to accumulated plant cardiac glycosides; can be a localized agricultural pest. Benefits: Plays a role in the food chain for specialized predators and aids in the decomposition of specific plant matter.

Identified on: 3/11/2026