Here's a sneak peak at my model, "Nature's Wonders Caterpillars". This base set will include 3 Hornworm caterpillars. This caterpillar is the White-lined Hornworm on some Salvia spathacea (Hummingbird Sage from my Hummingbird Garden model set). This caterpillar tends to look yellow and yellow-green, markings may differ depending on the climate and weather. If it’s in hot weather, stripes or even a solid black coloring may appear. It is 3 to 4 inches (7.5-10.2 cm) in length. In late summer and early fall, these caterpillars are often seen migrating along the ground on their way to finding the perfect soil in which to stage their next metamorphosis — into the adult moth stage-- the White-lined Sphinx Moth. While many hornworms spell doom for a vegetable garden, this caterpillar isn’t one of them. They may nibble a little bit along the way, but they will have little effect on those plants. This caterpillars feeds on a wide range of plants including purslane, portulaca, wild grape, plus weeds and various desert shrubs. They tend to stick with low, shrubby plants.