Pitch-mass
Guides
Synanthedon pini
pitch mass borer, Pitch Mass Borer Moth
Synanthedon pini, commonly known as the pitch mass borer, is a clearwing moth in the family Sesiidae. It is found in eastern North America, where it develops in the wood of pine and spruce trees. The larvae create pitch-filled tunnels in the inner bark and sapwood, causing defects in lumber but not killing host trees. Adults are active in mid-summer and have distinctive mostly clear wings.