Podsucking bug

This Pod-Sucking Bug is brown in colour with yellow lines along each side of the body. Its body is slim and narrower in the middle, with short sharp spine on each side of the thorax. It also has strong spiny hind legs.

Body length 20mm, bug on host plant Easter Cassia (Senna pendula, weeds). 

They are also common on grasses. It seems that they lay eggs on grasses, but not exactly sure. Adults feed on grass seeds as well.

The bug is an active flyer. Adults can be found on other plant leaves.

When disturbed, the bug will eject some yellow smelly liquid as defence.