The insect was first seen in the region in 2004 at Cuyamaca Rancho State Park .
Insect was confirmed to be the cause of oak damage in 2008 when adults and larvae were collected from the host trees .
The insect was first seen in the region in 2004 at Cuyamaca Rancho State Park , and it was confirmed to be the cause of oak damage in 2008 when adults and larvae were collected from the host trees .