Back in 2005, the year after the Home Bug Garden got its first major additions of expensive perennials (and the year after most were striped half bare of leaves by the hail from the two '1 in 200 year storms'), our new flowers were visited by several Hummingbird Clearwing Moths (Hemaris thysbe Fabricius, 1775). The moths proved too fast for our cameras, but other photographers at BugGuide have posted several excellent pictures. The day-flying moths look more like giant bumblebees to me than hummingbirds, but they can hover very well and are the right size for hummers.
Fortunately, the borers don't seem to be interested in our nannyberry (now nearly 3 m tall), nor did the hummingbird moth. But when a friend on AlbertaBugs pointed out that he had the caterpillars on his viburna, we checked and lo and behold we have them again. This time we will let them eat all they want - there are lots of leaves and only a handful of hornworms - and just be happy they are still around.
As well as welcoming back an interesting bug, this posting was designed to follow-up on what I learned at a post at Alex Wild's new blog at Scientific American, The Compound Eye. Among other things, Alex boldly states that to post an image to its best effect "Every blogger should know their column width, in pixels. " I don't seem to be clever or persistent enough to find this information on my blog, but a little experimenting indicates that a 600 pixel wide image as above is not auto-crunched by Blogger. I highly recommend The Compound Eye to anyone interested in getting the most out of their insect photography.