Fact Sheet No. 197, UMaine Extension No. 2371 Prepared by Judith A. Collins, Assistant Scientist, and H. Y. Forsythe, Jr., Professor of Entomology, in cooperation with David Yarborough, Extension Blueberry Specialist, 1995. Updated by Lily Calderwood, Extension Wild Blueberry Specialist, 2020. Description Young caterpillar larvae are about 1/8-inch long and dark gray to black with