Psychomyioidea

net-tube caddisflies

Family Guides

Dipseudopsidae
Ecnomidae(Tubecase Netspinning Caddisflies)
Polycentropodidae(Tube Maker Caddisflies)
Psychomyiidae(Net Tube Caddisflies)

Psychomyioidea is a superfamily of caddisflies (Trichoptera) in the suborder Annulipalpia, commonly known as net-tube caddisflies. The superfamily comprises five : Psychomyiidae, Xiphocentronidae, Dipseudopsidae, Polycentropodidae, and Pseudoneureclipsidae. Members are characterized by specialized antennal and larval case-building using silk nets or tubes. The group is primarily distributed in tropical and subtropical regions worldwide, with significant diversity in the Neotropics, Oriental region, and Brazilian Amazon.

Damaeus by (c) Alexis Tinker-Tsavalas, some rights reserved (CC BY), uploaded by Alexis Tinker-Tsavalas. Used under a CC-BY license.

Epidermoptidae by (c) Cricket Raspet, some rights reserved (CC BY), uploaded by Cricket Raspet. Used under a CC-BY license.

Psoroptidae by (c) Oleksii Vasyliuk, some rights reserved (CC BY), uploaded by Oleksii Vasyliuk. Used under a CC-BY license.

Pronunciation

How to pronounce Psychomyioidea: //ˌsaɪkoʊmɪˈɔɪdiə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Psychomyioidea is distinguished from other Trichoptera superfamilies by features of the suborder Annulipalpia, including reduced wing venation and modified larval mouthparts. Within Annulipalpia, the superfamily is recognized by the structure and distribution of antennal . -level identification relies on male genitalic , particularly the structure of segment IX and inferior appendages. The superfamily differs from Philopotamoidea (the other major Annulipalpia superfamily) in details of antennal sensilla complement and larval case architecture.

Images

Habitat

Primarily associated with lotic (flowing water) freshwater . Larvae construct silk nets or tubes for feeding and shelter, typically in streams and rivers. Specific microhabitat preferences vary by and .

Distribution

Worldwide in tropical and subtropical regions. Major centers of diversity include the Neotropical region (especially Brazil, Peru, Venezuela, Ecuador, Bolivia), the Oriental biogeographic region (125 of Polyplectropus alone), and the Brazilian Amazon. Some species extend into the Nearctic region. The Xiphocentronidae occurs across tropical regions with notable diversity in the Atlantic Forest of Brazil.

Behavior

Larvae are known as net-tube caddisflies due to their construction of silk nets or tubes for prey capture and shelter. is poorly documented; most observations focus on morphological identification rather than behavioral .

Ecological Role

Larvae function as or particle feeders in freshwater stream , using silk nets to capture food particles and small prey from flowing water. Specific trophic roles vary by and remain incompletely documented.

Human Relevance

Used as bioindicators of freshwater health due to sensitivity to water quality. Taxonomically important for studies of Trichoptera and biodiversity, particularly in tropical regions. No documented economic importance or pest status.

Similar Taxa

PhilopotamoideaThe other major superfamily in suborder Annulipalpia. Distinguished by differences in antennal structure and larval case architecture; Psychomyioidea has a more conservative antennal sensory surface with specific sensilla types not shared with Philopotamoidea.
SpicipalpiaA suborder of Trichoptera (or infraorder within Annulipalpia in some classifications) distinguished by free-living larvae with portable cases and different mouthpart ; Psychomyioidea larvae construct fixed nets or tubes and have modified mouthparts for net-spinning.

More Details

Taxonomic Composition

Psychomyioidea comprises five : Psychomyiidae, Xiphocentronidae, Dipseudopsidae, Polycentropodidae, and Pseudoneureclipsidae. The Polyplectropus (Polycentropodidae) alone contains 219 worldwide, making it one of the most diverse genera in the superfamily.

Sensilla Research

Scanning electron microscopy studies of 21 across all five have documented the antennal complement, revealing both conserved patterns and family-specific modifications useful for phylogenetic inference.