Caddisflies
Order Trichoptera
The Caddisflies (Order Trichoptera) includes 465 species across 24 families and 109 genera in our directory.
About Caddisflies
Trichoptera (caddisflies) includes ~14,500 described species worldwide. Larvae are aquatic and build protective cases from silk, sand, pebbles, and plant material - each species creates a distinctive case design.
Economic Impact
Caddisfly larvae are among the most important biological indicators of water quality. Their presence or absence in streams is used by the EPA and state agencies to assess pollution levels and ecosystem health.
Ecological Role
Caddisfly larvae are critical food sources for trout and other freshwater fish, making them essential to recreational fishing industries worth billions annually. Their silk is being researched as an underwater adhesive for medical applications.
Families in Trichoptera (24)
Species in Trichoptera (465)
Helicopsyche vergelana
Helicopsyche vergelana
Helicopsyche yamadai
Helicopsyche yamadai
Helicopsyche zealandica
Helicopsyche zealandica
Heteroplectron americanum
Heteroplectron americanum
Himalopsyche lua
Himalopsyche lua
Himalopsyche navasi
Himalopsyche navasi
Holocentropus dubius
Holocentropus dubius
Holocentropus picicornis
Holocentropus picicornis
Hydropsyche angustipennis
Hydropsyche angustipennis
Hydropsyche exocellata
Hydropsyche exocellata
Hydropsyche pellucidula
Hydropsyche pellucidula
Hydropsyche siltalai
Hydropsyche siltalai
Hydroptila cruciata
Hydroptila cruciata
Hydroptila forcipata
Hydroptila forcipata
Hydroptila sparsa
Hydroptila sparsa
Hydroptila vectis
Hydroptila vectis
Ithytrichia lamellaris
Ithytrichia lamellaris
Lepidostoma basale
Lepidostoma basale
Lepidostoma bryanti
Lepidostoma bryanti
Lepidostoma caffrariae
Lepidostoma caffrariae
Lepidostoma elongatum
Lepidostoma elongatum
Lepidostoma flavum
Lepidostoma flavum
Lepidostoma japonicum
Lepidostoma japonicum
Lepidostoma tenerifensis
Lepidostoma tenerifensis
Leptocerus tineiformis
Leptocerus tineiformis
Limnephilus affinis
Limnephilus affinis
Limnephilus auricula
Limnephilus auricula
Limnephilus flavicornis
Limnephilus flavicornis
Limnephilus marmoratus
Limnephilus marmoratus
Limnephilus sparsus
Limnephilus sparsus
Lype auripilis
Lype auripilis
Lype phaeopa
Lype phaeopa
Lype reducta
Lype reducta
Macrostemum fastosum
Macrostemum fastosum
Macrostemum floridum
Macrostemum floridum
Macrostemum midas
Macrostemum midas
Macrostemum radiatum
Macrostemum radiatum
Marilia aenigmata
Marilia aenigmata
Marilia amnicola
Marilia amnicola
Marilia nobsca
Marilia nobsca
Marilia parallela
Marilia parallela
Micrasema morosum
Micrasema morosum
Micrasema setiferum
Micrasema setiferum
Micrasema sprulesi
Micrasema sprulesi
Molanna albicans
Molanna albicans
Molanna angustata
Molanna angustata
Molanna cinerea
Molanna cinerea
Molanna moesta
Molanna moesta
Molanna nigra
Molanna nigra
Molanna submarginalis
Molanna submarginalis
Mystacides azureus
Mystacides azureus
Mystacides niger
Mystacides niger
Neophylax ayanus
Neophylax ayanus
Neophylax occidentis
Neophylax occidentis
Neophylax ottawa
Neophylax ottawa
Neophylax wigginsi
Neophylax wigginsi
Neothremma didactyla
Neothremma didactyla
Neureclipsis bimaculata
Neureclipsis bimaculata
Oecetis ochracea
Oecetis ochracea
Oligostomis reticulata
Oligostomis reticulata
Orthotrichia costalis
Orthotrichia costalis
Oxyethira albiceps
Oxyethira albiceps
Oxyethira falcata
Oxyethira falcata
Oxyethira flavicornis
Oxyethira flavicornis
Phryganea bipunctata
Phryganea bipunctata
Phylloicus abdominalis
Phylloicus abdominalis
Phylloicus aculeatus
Phylloicus aculeatus
Phylloicus elegans
Phylloicus elegans
Phylloicus fenestratus
Phylloicus fenestratus
Phylloicus ornatus
Phylloicus ornatus
Phylloicus pulchrus
Phylloicus pulchrus
Phylocentropus auriceps
Phylocentropus auriceps
Phylocentropus harrisi
Phylocentropus harrisi
Plectrocnemia conspersa
Plectrocnemia conspersa
Plectrocnemia geniculata
Plectrocnemia geniculata
Plectrocnemia maclachlani
Plectrocnemia maclachlani
Plectrocnemia tuhuae
Plectrocnemia tuhuae
Polycentropus cinereus
Polycentropus cinereus
Polycentropus flavomaculatus
Polycentropus flavomaculatus
Polycentropus irroratus
Polycentropus irroratus
Protoptila georgiana
Protoptila georgiana
Protoptila tenebrosa
Protoptila tenebrosa
Psilotreta kisoensis
Psilotreta kisoensis
Psilotreta locumtenens
Psilotreta locumtenens
Rhyacophila arcangelina
Rhyacophila arcangelina
Rhyacophila fasciata
Rhyacophila fasciata
Rhyacophila hirticornis
Rhyacophila hirticornis
Rhyacophila intermedia
Rhyacophila intermedia
Rhyacophila kelnerae
Rhyacophila kelnerae
Rhyacophila munda
Rhyacophila munda
Rhyacophila obliterata
Rhyacophila obliterata
Rhyacophila pubescens
Rhyacophila pubescens
Rhyacophila ravizzai
Rhyacophila ravizzai
Rhyacophila torrentium
Rhyacophila torrentium
Rhyacophila tristis
Rhyacophila tristis
Rhyacophila vulgaris
Rhyacophila vulgaris
Smicridea varia
Smicridea varia
Stactobiella risi
Stactobiella risi
Tinodes dives
Tinodes dives
Tinodes maclachlani
Tinodes maclachlani