Red-bodied swallowtail Red-bodied swallowtail Red-bodied swallowtails are butterflies in the swallowtail family, that belong to the genera "Atrophaneura", "Byasa", "Losaria", or "Pachliopta". They are generally found in Asia (Indomalaya ecozone). Collectors have found the red-bodied swallowtails difficult to kill. Pinching the thorax, a method which kills most butterflies, is withstood and apparently only stuns the butterfly temporarily. The eggs are simple. The larvae resemble those of other Troidini. Fleshy spine-like tubercles, often with red tips, line the caterpillars' backs, and their bodies are dark red to brown and velvety black or shades of grey with a pattern of black lines. They feed
Polygonia comma form of comma is frequently confused with the dark form of the question mark ("P. interrogationis"), but the two can readily be distinguished by the shape of the comma mark on the underside. The pale form is easily confused with the satyr comma ("P. satyrus"), which usually occurs north and west of the eastern comma's range. They can be distinguished by the upperside color, which is orange brown in the comma and tawny yellowish brown in "P. satyrus"; by the underside pattern, which tends to be mottled in the comma but appears to be more longitudinally streaked in "P. satyrus";