Hypocharassus pruinosus | Marine Fly Sand Case And Pupae

    Marine fly sand cases, such as illustrated below, are periodically found on the beaches of northeast Florida and southeast Georgia. Each of the extremely delicate cocoons contains a single very active larvae. Thanks to Dr. Maia Mcguire (University of Florida) for providing the identification.

Little Talbot Island State Park, Duval County, Florida 7/1/2004 (sand case about 20 mm.)