Anacroneuria debilis Pictet 1841

Abstract

Anacroneuria debilis (Pictet, 1841) Figs. 1–5. Perla (Perla) debilis Pictet, 1841: 255; Anacroneuria debilis, Zwick, 1972: 1155; Zwick, 1973: 486; Froehlich, 2002: 76; Baldin et al., 2013: 392. Material examined. BRAZIL (BR), Santa Catarina (SC), Nova Teutonia: 12 males, xi. 1980, Fritz Plaumann (DZUP); 1 male, 7.x. 1955 (Smithsonian Institution National Museum of Natural History—NMNH); 5 males, 27 females, i. 1975 (NMNH). Paraná (PR), Foz do Iguaçu, Cataratas: 1 female, 8.iii. 1968, W. L. & J. G. Peters (NMNH). Remarks. The redescriptions and comments about this species can be found in the papers of Zwick (1972, 1973), Froehlich (2002) and Baldin et al. (2013). The adult males studied here have a forewing length of 11.1–12.1 mm. The structure of the penial armature (Figs. 3–5) agrees with Zwick (1972) and Baldin et al. (2013). However, in several of the above listed males, the penial armature is slightly smaller and has a stronger dorsal inclination apically. The penial differences at this time are accepted as variation occurring in A. debilis. However, study of additional material from different localities is needed to ascertain if cryptic species are involved.Published as part of Novaes, Marcos Carneiro & Bispo, Pitágoras Da Conceição, 2014, A new species and notes on Perlidae (Plecoptera) from Paraná and Santa Catarina States, southern Brazil, pp. 458-468 in Zootaxa 3765 (5) on page 459, DOI: 10.11646/zootaxa.3765.5.4, http://zenodo.org/record/22467