Molannidae
Guides
Molanna
hood casemakers
Molanna is a genus of caddisflies (order Trichoptera) commonly known as hood casemakers, comprising over 20 described species. Larvae construct portable cases from sand grains and inhabit shallow freshwater environments including lake margins and spring-fed streams. Adults exhibit sex-specific antennal morphology and chemical communication, with females producing sex pheromones that attract males to mating sites near water.
Molanna ulmerina
hood casemaker
Molanna ulmerina is a species of caddisfly in the family Molannidae, commonly referred to as a hood casemaker. It is found in North America and is one of approximately 30 described species in the genus Molanna. The species was described by Navás in 1934. As with other members of Molannidae, larvae construct distinctive portable cases with a hood-like anterior extension.