Not the best photo I've managed to take of this species, but I definitely thought this image was worth sharing. My own research has turned up very little information documenting the life cycle and behaviors of V. sulphurea and I thought this would add at least one small piece to the puzzle. As is illustrated in this image, many hymenopterans (and indeed many other types of insects as well!) take full advantage of the sugary content of the lerps formed by psyllids which inhabit the Eucalyptus trees around my place. A "lerp" is defined as a "a small white, hemispherical cap composed of solidified honeydew and wax" (1) which the immature psyllid (in this instance, Glycaspis brimblecombei) forms as a means of protection. In the dry-season of southern California, when nectar-sources often become scarce, I have observed that these introduced "pests" provide sustenance to countless arthropods and many species of birds as well.