Micrasema charonis

As a member of Brachycentridae, this species can be distinguished from other caddisfly families by its case-making behavior: larvae construct portable cases using silk to bind together plant material or sand grains, lacking the pronounced humps seen in some other case-making families. Adults are small to medium-sized caddisflies with reduced mouthparts. Specific diagnostic features for M. charonis versus congeners require examination of genitalia and wing venation patterns.

North America; Nearctic region. Specific locality records are sparse in available sources.

As with all Trichoptera, development includes egg, larval, pupal, and adult stages. Larvae are aquatic and construct portable cases. Pupation occurs within the case or in a pupal cocoon attached to substrate. Adults are terrestrial and short-lived.

Larvae are case-makers, constructing portable shelters from silk-bound materials.

Larvae function as shredders or collector-gatherers in freshwater ecosystems, processing plant detritus and contributing to nutrient cycling.

• Other Brachycentridae speciesSimilar case-making behavior and general morphology; requires detailed examination to distinguish.
• Limnephilidae (northern cased caddisflies)Also case-makers, but typically construct cases with more prominent humps or different material arrangement.

• caddisfly
• aquatic insect
• case-maker
• Nearctic

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life