Grubs which feed on the inner content of seed in pulses belongs to

Grubs which feed on the inner content of seed in pulses belong to Callosobruchus chinesis.
Callosobruchus chinensis is a common species of beetle found in the bean weevil subfamily and is known to be a pest to many stored legumes. Other common names include the pulse beetle, Chinese bruchid and cowpea bruchid.
Grubs are the larval or immature form of certain beetle species. These C-shaped critters are white and wrinkly.