The beetles photographed here aren't actually playing in the snow — they are being dusted with flour. These tiny beetles are common pests in stores of food grains, and flour is their food.
This study wasn't, however, about the beetles themselves, but rather the tiny parasites that live in and on their bodies. Researchers studying the beetles investigated how their metabolic rates and energy expenditure change in response to being infected with parasites.
James S. Waters (postdoctoral researcher), Ann T. Tate (graduate student)