(WB) - A bug that devours vine leaves was recently found in a vineyard in Calistoga, according to the Napa County Agricultural Commissioner.

The single adult male western grapeleaf skeletonizer was discovered on June 22 in a bug trap in the vineyard off Tubbs Lane, according to the newsletter from the Napa County Agricultural Commissioner. The insect is also known as Harrisina brillians, according to the University of California Agricultural and Natural Resources’ Statewide Integrated Pest Management Program.

“The Western Grapeleaf Skeletonizer (WGLS) is a significant and destructive winegrape pest not known to be established in Napa County,” according to the newsletter.