???It has a wing span of 2 to 2.5mm,??? Heydon said. ???Insects that have a wing span of 3mm are considered tiny, but this one is really tiny???the smallest moth anyone ever seems to have found.??? An employee of the Bohart Museum since 1990, Heydon has worked with wasps, beetles, flies and other insects ???about that small, but never a moth that small until now.???