Defensive phragmosis and cathaptosis in Trichoptera larvae

# Defensive phragmosis and cathaptosis in Trichoptera larvae The four videos in this dataset show behavioral responses of Trichoptera larvae to predatory threats, including evidence of phragmosis by *Fattigia pele* (Sericostomatidae) and *Goera calcarata* (Goeridae) and of cathaptosis by *Ascalaphomerus* sp. (Calamoceratidae). ## Description of the data and file structure When disturbed by a potential predator, a larva of *Fattigia pele* or *Goera calcarata* withdraws into its protective portable case, blocking the case entrance with a hard and usually flattened head or head-and-thoracic notum, demonstrating phragmosis. When disturbed by a potential predator, a larva of *Ascalaphomerus* sp. grasps the substrate, forcing the entrance of its protective portable case against the substrate to exclude the predator, demonstrating cathaptosis. ## Sharing/Access information Links to other publicly accessible locations of the data include the following: * * * * ## Code/Software The videos are recorded in MP4 software.