biostudies-literatureUnknown13Razuri-Gonzales E<i>Atopsyche</i> is the largest Hydrobiosidae genus on the South American continent. The genus previously included 27 species in Ecuador. In this work, we describe and illustrate seven new species of <i>Atopsyche</i> from the Andes of Ecuador: <i>Atopsyche andina</i> <b>sp. nov.</b>, <i>Atopsyche azuayana</i> <b>sp. nov.</b>, <i>Atopsyche chocoandina</i> <b>sp. nov.</b>, <i>Atopsyche jocotoco</i> <b>sp. nov.</b>, <i>Atopsyche papallacta</i> <b>sp. nov.</b>, <i>Atopsyche piburja</i> <b>sp. nov.</b>, and <i>Atopsyche tapichalaca</i> <b>sp. nov.</b> Additionally, we provide distributional information for all Ecuadorian <i>Atopsyche</i>, including three new country records: <i>A</i>. <i>kingi</i>, <i>A</i>. <i>mayucapac</i>, and <i>A. neotropicalis</i>. With these additions, there are now 37 species of <i>Atopsyche</i> in Ecuador, or about 75% of species in the country, according to the CHAO 2 species estimator. Finally, we provide new and more detailed illustrations for <i>A. bolivari</i>, <i>A. bravoi</i>, and <i>A. davidsoni</i>.PeerJe18769https://www.ebi.ac.uk/biostudies/studies/S-EPMC12005178biostudies-literatureDiversity and distribution of the caddisfly genus <i>Atopsyche</i> Banks, 1905 in Ecuador, with the description of seven new species (Trichoptera: Hydrobiosidae).PMC12005178Rios-Touma BHolzenthal RRazuri-Gonzales EfalseDiversity and distribution of the caddisfly genus <i>Atopsyche</i> Banks, 1905 in Ecuador, with the description of seven new species (Trichoptera: Hydrobiosidae).<i>Atopsyche</i> is the largest Hydrobiosidae genus on the South American continent. The genus previously included 27 species in Ecuador. In this work, we describe and illustrate seven new species of <i>Atopsyche</i> from the Andes of Ecuador: <i>Atopsyche andina</i> <b>sp. nov.</b>, <i>Atopsyche azuayana</i> <b>sp. nov.</b>, <i>Atopsyche chocoandina</i> <b>sp. nov.</b>, <i>Atopsyche jocotoco</i> <b>sp. nov.</b>, <i>Atopsyche papallacta</i> <b>sp. nov.</b>, <i>Atopsyche piburja</i> <b>sp. nov.</b>, and <i>Atopsyche tapichalaca</i> <b>sp. nov.</b> Additionally, we provide distributional information for all Ecuadorian <i>Atopsyche</i>, including three new country records: <i>A</i>. <i>kingi</i>, <i>A</i>. <i>mayucapac</i>, and <i>A. neotropicalis</i>. With these additions, there are now 37 species of <i>Atopsyche</i> in Ecuador, or about 75% of species in the country, according to the CHAO 2 species estimator. Finally, we provide new and more detailed illustrations for <i>A. bolivari</i>, <i>A. bravoi</i>, and <i>A. davidsoni</i>.2025-01-01T00:00:00Z20252025-06-28T03:05:13.605Z2025-06-28T03:05:13.605ZS-EPMC120051784024783410.7717/peerj.18769