CREDIT: USDA.
New research indicates that varroa mites are "infiltrating hives by smelling like bees." This reduces the chance that the parasites will be detected and eliminated. It's a fascinating and effective form of chemical camouflage:
“Specifically, it’s the cuticular hydrocarbons, compounds released from hair-shaft glands, that emit scents that differentiate queens from fertile and infertile workers; it’s the smell that invokes acceptance or triggers aggression.”
