Citrus longhorned beetle (Anoplophora chinensis) is an insect pest of hardwoods, fruit trees and woody ornamentals. It is a native of China and was first detected in Washington in 2001.
While other borer pests usually attack unhealthy or dead plants, this pest will attack apparently healthy trees. This is just one of many forest pests that are moved to un-infested forests by humans moving firewood. Help to protect our forests: don't move firewood!