Hundreds of moths assemble in hollow tree (VIDEO) Florida Museum of Natural History This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Only a few species of butterflies and moths are known to gather in groups, the most famous example being the millions of monarchs that converge in Mexico each winter. But Florida Museum lepidopterist Andrei Sourakov discovered a previously unknown phenomenon: moths communally roosting in hollow trees. The moths seemed to be resting en masse, waiting for night to come. Credit Florida Museum video by Andrei Sourakov and Rose Roberts Usage Restrictions Please credit: Florida Museum video by Andrei Sourakov and Rose Roberts License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.