Photo by Drees.
Female weevils insert white eggs into leaf sheaths under water.
They then pupate within a water-tight, oval mud cell attached to the roots and emerge 5 to 7 days later. Adults emerge throughout the reproductive stage of rice development and feed on leaves before leaving the field in late summer and fall. Development from egg to adult normally occurs within 35 days. Two generations and possibly a partial third can occur annually. Mouthparts are for chewing.