The Encyclopedia of Entomology provides a detailed, global overview of insects and their close relatives, including taxonomy, behavior, ecology, physiology, history, and management. It covers all the major groups of arthropods, as well as many important families and individual species. The encyclopedia also covers physiology, genetics, ecology, behavior, insect relationships with people, medical entomology, and pest management. He is a fellow of the Entomological Society of America, and an authority on insect ecology and pest management. Account Options Sign in. Conseguir libro impreso.
Monarch Butterfly Fact Sheet | Blog | Nature | PBS
Adult monarchs feed on the nectar of many flowers, but they breed only where milkweeds are found. Photo by Janet Mukai. Knowlton Creek field, a monarch larva monitoring site in Duluth, Minnesota. Photo by Gail Gilland. Many butterflies have a single plant required as a food source for their larval form called a host plant. Milkweed is the host plant for the monarch butterfly. Without milkweed, the larva would not be able to develop into a butterfly.
Monarch butterfly Danaus plexippus caterpillars are probably the one insect most people associate with milkweeds Asclepias spp. Not many insects are able to feed on milkweeds. The sticky white sap that gives milkweed its common name and the leaves contain toxic chemicals cardiac glycosides to deter mammals and insects from feeding on the foliage.
The adult milkweed bug's orange and black colors warn predators that it's not good to eat. The milkweed leaf beetle is also known as the swamp milkweed leaf beetle for its preference for this plant. Skeletized milkweed leaves where only the veins are left uneaten are a sure sign of milkweed tussock moth larvae.