Later signs and symptoms may include: 1  Fever. 2  Headache. 3  Nausea. Vomiting. 4  Agitation. Anxiety. 5  Confusion. Hyperactivity.  Difficulty 1  swallowing. Excessive salivation.  Fear of water (hydrophobia) because of the difficulty in 1  swallowing. Hallucinations.  Insomnia. Partial paralysis.
Some people consider the caterpillars of this butterfly to be a pest, since they eat parsley, carrots, and other garden plants. Many people enjoy butterfly-watching and collecting, and the Eastern Black Swallowtail is considered by most to be a handsome specimen.he Eastern Black Swallowtail is a common swallowtail butterfly, often confused with the Pipevine Swallowtail or female Tiger Swallowtail. Both male and female Eastern Black Swallowtails are bluish-black with yellow spots on the wings.
Many varieties of caterpillars have preferred plants and trees that they like to live and feed on. Most butterflies will search out very specific trees and plants for their young to live on, but most moths appear far less picky. Tiger swallowtail caterpillars can be found on cherry, birch, tulip trees and ash trees.