Webinar on Caddisfly Biodiversity of Ecuador – Discovery, Description and Evolution by Emeritus Prof Ralph Holzenthal for the University of Minnesota Retirees Association.

What is the biodiversity of caddisflies in Ecuador? What are their adaptations for high elevations? Life history patterns? Reasons for their diversity in Ecuador? Caddisfly expert, Emeritus Prof. Ralph Holzenthal, retired in 2022, but with the support of a Professional Development Grant for Retirees through the University of Minnesota Retirees Association, he continued to pursue his research on this insect group well known for the amazing cases made by the larvae. Learn more about caddisflies through this video prepared by Ralph and his collaborators, a creative, engaging and educational ‘report’ for the granting agency.