Work of the sinuate pear-borer on a Bartlett pear-tree.
John B. Smith Economic Entomology (Philadelphia and London: J.B. Lippincott Co, 1896)
TIFF (full resolution)
1537×2400, 2.0 MiB
Large GIF
655×1024, 192.8 KiB
Medium GIF
409×640, 77.6 KiB
Small GIF
204×320, 20.9 KiB