Dogwood borer
Insect
Dogwood borer
Synanthedon scitula (Harris)
Lepidoptera: Sesiidae
Distribution: Most fruit-growing states and provinces in eastern North America.
Photos
Larvae dig tunnels in the trunk or burr knots, creating accumulations of reddish frass at the tunnel exits.
NY State Ag Experiment Station
C
The adult is bluish black with yellow bands and has clear wings (A), resembling a wasp. Larva is creamy white to pink with a sclerotized reddish head (B).