I posted about the Orgyia leucostigma (white-marked tussock moths) that I reared last year to adulthood and documented their breeding and oviposting on my back porch. In mid-April, the young had emerged from their egg case after overwintering on the porch. Here are some photos of these extremely tiny little ones. It was a pretty difficult task as these guys were not much larger than an average grain of sand. Additionally, shortly after emerging they just wanted to spin a thread and balloon away on the wind, which is their primary method of dispersing. I used a small paintbrush to try and gently move them to some leaves, but their threads would quickly get wrapped around their long setae. After getting some photos, I left most of them to disperse in the backyard.
A Thousand Acres of Silphiums 