Caddisfly
Guides
Smicridea signata
netspinning caddisfly
Smicridea signata is a species of netspinning caddisfly in the family Hydropsychidae. The species is found in North America and belongs to the Smicridea (Smicridea) fasciatella species group, which is characterized by a phallic apparatus that is a simple tube with eversible internal sclerites at the apex. The fasciatella group has a broad distribution from the southwestern USA through Central America, the Greater Antilles, and most of South America.
Thremmatidae
Thremmatidae is a family of caddisflies (Trichoptera) currently classified within the family Uenoidae as subfamily Thremmatinae. The family includes genera such as Thremma, Neophylax, and Oligophlebodes. Larvae are case-building and can be identified by distinctive morphological features including mesonotal sclerite shape, foretrochantins, forefemora, ventral sclerites on abdominal segment I, head coloration patterns, and case morphology. At least one species, Neophylax splendens, exhibits an extended pre-pupal diapause lasting approximately three months.
Tinodes
Tinodes is a genus of caddisflies in the family Psychomyiidae, first described by John Curtis in 1834. The genus has a cosmopolitan distribution with the richest species assemblages in the Oriental region and southern Western Palearctic. Species have been documented from Europe, Africa, Madagascar, the Comoros, and Asia. Larvae of at least some species construct fixed tunnel-like retreats (galleries) on stone surfaces in freshwater streams. The genus serves as an important bioindicator of freshwater ecosystem health due to its sensitivity to environmental changes.
Triaenodes
Triaenodes is a genus of long-horned caddisflies (family Leptoceridae) containing at least 170 described species. The genus has a cosmopolitan distribution, with species documented across the Neotropics, North America, Europe, and Asia. Larvae construct portable cases and are primarily aquatic, with some species exhibiting specialized swimming behavior to navigate between aquatic macrophytes. The genus serves as the type genus for the tribe Triaenodini.
Triaenodes aba
Aba's Long-horned Caddisfly
Triaenodes aba is a species of long-horned caddisfly in the family Leptoceridae, described by Milne in 1935. The common name references its notably elongated antennae, which extend well beyond the body length—a characteristic trait of the genus. As with other Leptoceridae, the larvae are aquatic and construct portable cases from plant material or sand grains. Adult emergence patterns and specific habitat preferences for this species remain poorly documented, with only four verified observations recorded on iNaturalist.
Triaenodes baris
Triaenodes baris is a species of long-horned caddisfly in the family Leptoceridae, described by Ross in 1938. The species is found in North America and belongs to a genus characterized by elongated antennae in adults. As with other Leptoceridae, larvae likely inhabit aquatic environments and construct portable cases from plant material.
Triaenodes flavescens
Triaenodes flavescens is a species of long-horned caddisfly in the family Leptoceridae, described by Banks in 1900. It belongs to a genus characterized by elongated antennae that often exceed body length. The species is known from North America. As with other members of Leptoceridae, adults are associated with aquatic habitats where larvae develop.
Triaenodes injusta
Triaenodes injusta is a species of long-horned caddisfly in the family Leptoceridae. The genus Triaenodes is characterized by elongated antennae, often exceeding body length, and larvae that construct distinctive portable cases. This species is part of a diverse Nearctic fauna of Triaenodes, though specific biological details remain limited in published literature.
Triaenodes marginata
Triaenodes marginata is a species of caddisfly in the family Leptoceridae. The genus Triaenodes belongs to the tribe Triaenodini within the subfamily Leptocerinae. The species has been treated taxonomically with at least one recognized synonym, Triaenodes marginata tarda Milne, 1934, which is now considered a synonym of Triaenodes tardus. Information regarding the biology, ecology, and distribution of this specific species is limited in the provided sources.
Triaenodes tardus
long-horned caddisfly
Triaenodes tardus is a North American long-horned caddisfly in the family Leptoceridae. Larvae construct portable cases and are capable swimmers, using setae on their extended metathoracic legs to move between aquatic macrophytes. Swimming speed averages 1.47 cm/s even while carrying cases nearly double their body mass. The species exhibits reduced swimming activity when vegetation is available, indicating swimming functions primarily for habitat relocation rather than escape.
Uenoidae
Stonecase Caddisflies
Uenoidae is a family of caddisflies (Trichoptera) commonly known as stonecase caddisflies. The family comprises approximately 7 genera and at least 80 described species, distributed across North America, Asia, and Europe. Larvae construct portable cases using mineral materials, hence the common name. The family was revised taxonomically in 1988 to include the subfamilies Uenoinae and Thremmatinae, incorporating genera formerly placed in separate families. Studies of Neophylax species demonstrate univoltine life cycles with temporal segregation between co-occurring species.
Wormaldia
Wormaldia is a diverse genus of fingernet caddisflies (family Philopotamidae), comprising approximately 175 extant species globally. It is the second-largest genus in Philopotamidae after Chimarra. Species occur across all biogeographic regions except Australasia, with notable diversification in the Neotropics and Nearctic. The genus includes fossil species from Late Cretaceous Burmese amber, indicating an ancient evolutionary history. Taxonomic revisions have focused heavily on male genitalia morphology for species identification.
Wormaldia arizonensis
Wormaldia arizonensis is a species of caddisfly in the family Philopotamidae, originally described by Ling in 1938. It belongs to the second largest genus in its family, with approximately 175 extant species worldwide. The species is known from the southwestern United States and Mexico. As with other philopotamid caddisflies, it is presumed to have aquatic larval stages and terrestrial adult stages, though specific details of its biology remain poorly documented.
Wormaldia moesta
fingernet caddisfly
Wormaldia moesta is a species of fingernet caddisfly described by Banks in 1914. It belongs to the family Philopotamidae, a group of caddisflies characterized by their distinctive net-spinning larval behavior. The species has been documented in North America, with specific records from Vermont in the United States.