Helicopsyche ralphi sp. nov., pupa and case A pupa front B abdominal segment IX and anal processes, dorsal view C pupa lateral habitus D–H abdominal segments I–V, dorsal, with details of dorsal hook plates I pupa case, ventral view J pupa case with sieve membrane highlighted, ventral view.

 
 
  Part of: Cavalcante-Silva A, Pereira R, Calor AR (2022) Caddisflies (Trichoptera) checklist and a new species of Helicopsyche von Siebold, 1856, from the Brejo de Altitude de Triunfo, a relict rainforest within the Caatinga domain, Northeast Brazil. In: Pauls SU, Thomson R, Rázuri-Gonzales E (Eds) Special Issue in Honor of Ralph W. Holzenthal for a Lifelong Contribution to Trichoptera Systematics. ZooKeys 1111: 215-244. https://doi.org/10.3897/zookeys.1111.77541