David Sharp, The Cambridge Natural History, Vol… (1899)
“ Papilionidae.—All the legs well developed. Claws large, simple, without empodium. Front tibiae with a pad. The metanotum free, conspicuously exposed between mesonotum and abdomen. This series of butterflies includes some of the most magnificent of the members of the Insect world. It is considered by some authorities to be the highest family of butterflies; and in one very important feature—sexual differentiation—it certainly is entitled to the rank. There are about 700 recorded species, the larger portion of which are included in the genus Papilio. ”
