About October Caddis
A large orange-bodied caddisfly that hatches in autumn on western North American rivers. It is one of the most important late-season food sources for steelhead and salmon.
Did You Know?
October caddis larvae build massive cases from pebbles and can be so abundant that they visibly alter the streambed substrate.
How to Identify October Caddis
October Caddis (Dicosmoecus gilvipes) belongs to the order Trichoptera, family Limnephilidae. Adults typically measure 20-28 mm.
October Caddis Habitat
October Caddis is found in rivers & streams habitats, particularly across North America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
October Caddis Diet and Feeding
October Caddis is a herbivore, feeding on plant material including leaves, stems, flowers, and other vegetation. Herbivorous insects play a significant role in ecosystems by influencing plant growth and serving as a food source for predators.
Where Is October Caddis Found?
October Caddis can be found in North America, where it inhabits rivers & streams environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where October Caddis can be found
Is October Caddis Dangerous?
October Caddis is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
October Caddis Role in Nature
October Caddis is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About October Caddis
What does October Caddis look like?
The October Caddis typically measures 20-28 mm.
Where is October Caddis found?
The October Caddis is found in North America and typically inhabits rivers & streams environments.
What does October Caddis eat?
The October Caddis feeds on plant material including leaves, stems, and other vegetation.
Is October Caddis dangerous to humans?
The October Caddis is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about October Caddis?
October caddis larvae build massive cases from pebbles and can be so abundant that they visibly alter the streambed substrate.
Cite This Page
APA:
InsectDiscover. (2026). October Caddis (Dicosmoecus gilvipes). Retrieved from https://insectdiscover.com/insect/october-caddis
MLA:
"October Caddis." InsectDiscover, https://insectdiscover.com/insect/october-caddis.