Helicopsyche ralphi sp. nov., male A genitalia, lateral view B segments IX and X and inferior appendages, dorsal view C inferior appendage, ventral view D phallus, lateral view E phallus, ventral view F sternum VI, lateral view. Abbreviations: seg. IX = abdominal segment IX; a.seg. IX = apodeme of abdominal segment IX; sup.a = superior appendage; seg. X = abdominal segment X; bas.l = basomesal lobe; inf.a = inferior appendage; pha.b = phallobase; pha.scl. = phallotremal sclerite.

 
 
  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