Head of H. briareus. A dorsal; B, right lateral; C, ventral; D, left mandible, dorsal; E, submentum, cardo and anterior ventral apotome, ventral. Abbreviations: avp. anterior ventral apotome; car. cardo; lab. labrum; pva. posterior ventral apotome; sub. submentum; vel. ventral ecdysial line.

  
  Part of: Ge X, Wang J, Chai L, Yan C (2025) Descriptions of hitherto unknown larvae of the genus Hydropsyche Pictet, 1834 from China (Trichoptera, Hydropsychidae). Biodiversity Data Journal 13: e151321. https://doi.org/10.3897/BDJ.13.e151321