A female parasitoid wasp (Euplemus vuilletti) feeds on its host, a beetle larva (Callosobruchus maculatus), by puncturing the beetle's cuticle with its ovipositor. The wasp creates a feeding tube to extract fluids from its host. In this picture the host beetle (bottom) is housed in an artificial seed made of a gelatin capsule, which allows observation of the feeding tube (white tube) without altering the wasp's feeding behavior. The feeding tube begins at the host surface and ends at the surface of the capsule. Females of this parasitoid species can either feed on a host or lay an egg on it. This photograph originally appeared on the cover of Ecology (86:3) in March of 2005.