Eurycantha horrida can reach a length of about 12 centimetres (4.7 in) in males, of about 14 centimetres (5.5 in) in females.
The body color ranges from pale green to brown.
The young  insects are glossy greenish.
These  ground-dwelling stick insects resemble bark or rotten wood.
They have numerous small spines on their body and on their hind legs.
Both sexes are wingless and look very similar.
They exhibit the sexual dimorphism of many phasmids, as the males are darker, smaller and thinner and have enlarged hind leg femurs with a curved spine or thorn on the underneath side.
Females are also  brighter than the males and have a larger abdomen tipped with a beak-shaped ovipositor with which they lay the eggs in damp soil.
Eurycantha horrida can reach a length of about 12 centimetres (4.7 in) in males, of about 14 centimetres (5.5 in) in females. The body color ranges from pale green to brown. The young  insects are glossy greenish. These  ground-dwelling stick insects resemble bark or rotten wood. They have numerous small spines on their body and on their hind legs. Both sexes are wingless and look very similar. They exhibit the sexual dimorphism of many phasmids, as the males are darker, smaller and thinner and have enlarged hind leg femurs with a curved spine or thorn on the underneath side. Females are also  brighter than the males and have a larger abdomen tipped with a beak-shaped ovipositor with which they lay the eggs in damp soil.
Eurycantha horrida