ABSTRACT Currently, 32 species of Stenochironomus Kieffer, 1919 are known from Brazil, 27 of which occur in the Amazon region. In this study, six new species of Stenochironomus from the Brazilian Amazon are described and illustrated. Three of these species are associated with their respective immature stages, one is associated with the pupal stage, and two are based solely on the adult male. Additionally, new records of S. figueiredoensis Dantas, Hamada & Mendes, 2016, S. liviae Dantas, Hamada & Mendes , 2016, and S. roquei Dantas, Hamada & Mendes, 2010 are provided. These results increase the known diversity of the genus in the Brazilian Amazon and provide new information on life stage associations.
Sousa et al. (2026) studied this question.