Answer key for the “Can you spot Tropilaelaps and Varroa” postcard.

The below image represents a portion of a sticky board inserted into a Apis mellifera honey bee colony in Thailand for 48 hours. When including mites in only one of the two circled areas, to avoid double-counting, the image includes 2 Varroa destructor and 20 Tropilaelaps mercedesae. Within the circle there are 6 Tropilaelaps and 2 Varroa mites.