Priority Mail Dimensional Weight Calculation. 1Round off (e.g., 20.5 rounded off to the next whole number is 21, and 20.4 rounded off is 20), 2Round up (e.g., rounding up either 44.2 or 44.8 to the next whole pound is 45).
The Black Swallowtail (Papilio polyxenes) is a species of butterfly. It is also called the American Swallowtail or Parsnip Swallowtail. It is found throughout much of North America.
Female Swallowtails tend to be more elusive than the male. They are more inclined to stick to a routine of feeding and egg laying. Females of the tree feeding species often spend much of their time high up out of your reach laying eggs, and the best time to catch them is in the morning as soon as the sun is warm.