The metathorax of the monarch. This common butterfly is of a brown color, with black veins and wing borders.
Buel P. Colton, Zoology: Descriptive and Practical (Boston:D.C. Heath & Co., 1903) 26
3023×3309, 9.6 MiB
935×1024, 119.4 KiB
584×640, 56.1 KiB
292×320, 18.5 KiB