Other butterflies will only lay eggs on specific plants such as the famous Monarch butterfly (Danaus plexippus), which lays eggs on, and whose caterpillars eat only Milkweed plants (Asclepias spp.). The female, after mating with a male, will seek out an appropriate host plant on which to lay her eggs.
The iliac crest is the curved superior border of the ilium, the largest of the three bones that merge to form the os coxa, or hip bone. It is located on the superior and lateral edge of the ilium very close to the surface of the skin in the hip region. When a person places their hands on their hips, it is the skin above the iliac crest that they rest their hands on.
It forms the prominent bone of the hip. The iliac bone crest is the uppermost edge of the ilium, one of three fused bones, the ilium, the ischium, and the pubis, that together make up the pelvis. Of the three pelvic bones, the ilium is the largest.