Anacroneuria debilis (Pictet 1841)

Rippel, Mellis Layra Soares, Novaes, Marcos Carneiro & Krolow, Tiago Kütter, 2019, First records of the genus Anacroneuria (Plecoptera: Perlidae) from Tocantins State, Brazil and description of a new species, Zootaxa 4560 (2), pp. 355-364 : 359

Anacroneuria debilis (Pictet 1841)

Perla (Perla) debilis Pictet 1841: 255 .

Anacroneuria debilis Zwick 1972: 1155 ; Zwick 1973: 486; Froehlich 2002: 76; Avelino-Capistrano et al. 2011: 59–63; Baldin et al. 2013: 392 ; Bispo et al. 2014: 592 ; Novaes & Bispo 2014a: 434 ; Novaes & Bispo 2014b: 459 ; Duarte & Lecci 2016: 293 ; Almeida & Duarte 2017: 481; Gonçalves et al. 2017: 146 .

Material examined. BRA, TO, municipality of Palmas, Taquaruçú do Porto, Fazenda Buritizal, Córrego Buritizal, (-10.28667222, -48.05347222), Pennsylvania trap, 1 male, 28–29.xi.2017, TKK, ( CEUFT) . BRA, TO, municipality of Palmas, Taquaruçú do Porto , Roncadeira, Ribeirão Taquaruçuzinho, (-10.303639, -8.138861), Pennsylvania trap , 2 males, 17–20.x.2017, MLSR, ASF, ( CEUFT) . BRA, TO, municipality of Palmas, Taquaruçú do Porto , Vale do Vai Quem Quer, Ribeirão São João (-10.394327, -48.132334), Pennsylvania trap , 8 females and 2 males, 13–14.xi.2017, TKK, ( CEUFT) , 1 female and 2 males, 15–16.xi. 2 0 17, TKK, ( CEUFT) ; Malaise trap, 4 males, 13–16.xi.2017, TKK, ( CEUFT) ; light trap, 4 females and 3 males, 13–14.xi.2017, TKK, ( CEUFT) , 1 female, 13–14.xi.2017, TKK, ( INPA) , 2 females and 6 males, 14–15.xi.2017, TKK, ( CEUFT) ; light pan trap, 8 females and 2 males, 13–14.xi.2017, TKK, ( CEUFT) , 6 females and 12 males, 14–15.xi.2017, TKK, ( CEUFT) , 2 males, 14–15.xi.2017, TKK, ( INPA) , 1 female and 2 males, TKK, ( CLBA) , 2 females, 15–16.xi.2017, TKK, ( CEUFT) .

Measurements data. Female forewing: 12.5–16.5 mm, n= 33; male forewing: 9.6–11.9 mm, n=38.

Remarks. Specimens studied here are smaller (forewing length of male: 10–14.5 mm) and lighter than that studied by Baldin et al. (2013). Additionally, our specimens possess a yellow spot medially on the head and the Mline is not as distinct as that observed in specimens from other areas of Brazil. Even with such differences, due to wide distribution of A. debilis we consider these differences as intraspecific. Regarding the penial armature of this species, its apical portion in lateral view is similar to the illustration in Zwick (1972) and differs slightly from Baldin et al. (2013). This species is recorded to northeastern Argentina (provinces of Misiones and Entre Ríos), Paraguay, and southern to northeastern Brazil ( Duarte & Lecci 2016). This is the first record of this species for Tocantins State.