identify this picture
Despite being annoyed at the terse demanding tone of this query, we are posting a relatively lengthy answer, however our personal reply was equally brief. This is a White Marked Tussock Moth Caterpillar, originally Hemerocampa leucostigma and now identified as Orgyia leucostigma. It is a pest on most shade and ornamental trees. They can become so numerous that they defoliate trees. Though the caterpillar is quite beautiful, the moth is small and inconspicuous.