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 Author Cavalcante-Silva, Amanda Laboratorio de Entomologia Aquatica, PPG Biodiversidade e Evolucao, Instituto de Biologia, Universidade Federal da Bahia, Rua Barao de Jeremoabo, 147, Campus Ondina, CEP 40170 - 115, Salvador, Bahia, Brazil Author Pereira, Rafael https://orcid.org/0000-0001-7578-6042 Laboratorio de Entomologia Aquatica, PPG Biodiversidade e Evolucao, Instituto de Biologia, Universidade Federal da Bahia, Rua Barao de Jeremoabo, 147, Campus Ondina, CEP 40170 - 115, Salvador, Bahia, Brazil Author Calor, Adolfo Ricardo https://orcid.org/0000-0003-3975-3176 Laboratorio de Entomologia Aquatica, PPG Biodiversidade e Evolucao, Instituto de Biologia, Universidade Federal da Bahia, Rua Barao de Jeremoabo, 147, Campus Ondina, CEP 40170 - 115, Salvador, Bahia, Brazil acalor@gmail.com text ZooKeys 2022 2022-07-11 1111 215 244 http://dx.doi.org/10.3897/zookeys.1111.77541 journal article http://dx.doi.org/10.3897/zookeys.1111.77541 1313-2970-1111-215 AA05385C92F64597BFCC7723A373EC02 811D9FEFE793533D8D80C41B2333FAF6 Oecetis excisa Ulmer Oecetis excisa Ulmer, 1907: 15 [type locality: Argentina, Chaco de Santa Fe , Las Garzas, Rio Las Garzas, 25 km W Ocampo; MNHNP; male]. Material examined. Brazil : Pernambuco : B2 ( 1 male , 1 female ) ; B3 ( 1 male ); C1 ( 2 males , 8 females ); C3 ( 1 male ); C5 ( 1 male ); D3 ( 17 males ); D5 ( 1 female ); D9 ( 20 females ); D10 ( 1 male ); D11 ( 1 male , 2 females ); D12 ( 16 males , 4 females ); D21 ( 1 female ); E1 ( 1 male ). Distribution. Argentina, Bolivia, Brazil (BA, CE, GO, MS, MT, PA, PB, PE, RN, SP), Mexico, Paraguay, and Venezuela. Remarks. The examined specimens match the description of Ulmer (i.e., tibial spur formula 1,2,2), unlike specimens examined by Quinteiro and Calor (2015) , for states of Bahia, Mato Grosso, Paraiba , and Rio Grande do Norte, which presented tibial spur formula 0,2,2. This species is widely distributed in Brazil, including several records in the Northeast region ( Quinteiro and Calor 2015 ; Desiderio et al. 2017 ). Souza et al. (2013a) recorded the occurrence of the species in the Caatinga domain, Amaraji municipality, Pernambuco state (altitude 320 m). This study provides the first record of species in Brejo de Altitude . PHILOPOTAMIDAE