Daniel Kronauer's (Cambridge, MA) photo won for best image of an immature insect or arthropod. The photographer's statement about this photograph: Ants are ecologically dominant in tropical ecosystems and generally well defended. Many other arthropods therefore commonly mimic ants. For example, it is not uncommon to find one or more ant-mimicking jumping spiders for each of the most common ant species at any Amazonian site. This picture was taken while I was photographing Camponotus carpenter ants that were foraging on the same plant. It certainly took a second look to notice that this bug was not part of the ant family.
Thanks for sharing your images with us, and congratulations on placing first in this category!