I love this one also
At feeder and feeding on salvia
Nectaring on Joe Pye weed
On Aug. 5, I found some eggs on a common milkweed, cut a 1" porting of leaf surrounding the egg and set it on some wet paper towels. Aug. 8 the eggs started showing black. Using a "smartphone microscope" (www.instructables.com) and an iPhone 5 with OS8, I was able to get a time lapse video of the caterpillar just as it exits the egg. I missed the exiting part unfortunately. After consuming most of the egg, the caterpillar wandered off, sometimes off the milkweed. Using a toothpick to return it to the host plant , I discovered they have a silk thread like other caterpillars.
Clusters were found huddling under a common milkweed leaf. Other leaves were completely skeletonized, almost down to nothing.
Moth; total length 20 mm, relaxed wingspan is 21 mm. Color is dark brown with tan markings.