Anacroneuria minuta Klapálek, 1922

Carvalho, André De Sousa, Almeida, Lucas Henrique De, Azevêdo, Carlos Augusto Silva De & Lima, Lucas Ramos Costa, 2020, The genus Anacroneuria Klapálek, 1909 (Plecoptera: Perlidae) from Maranhão State, northeastern Brazil, Zootaxa 4860 (3), pp. 435-444 : 439

Anacroneuria minuta Klapálek, 1922

( Fig. 1C , 2 C–D)

Anacroneuria minuta Klapálek, 1922: 89 ; Illies 1966: 319; Kimmins 1970: 345; Ribeiro-Ferreira & Froehlich 2001: 188; Froehlich 2002: 80; Ribeiro & Rafael 2009: 2 ; Froehlich 2010: 162; Ribeiro & Gorayeb 2014: 23; Ribeiro & Gorayeb 2016: 434; Rippel et al. 2019: 360 ; Menezes et al. 2020: 468.

Distribution. BRAZIL: States of Amazonas, Pará, Roraima and Tocantins. New record: State of Maranhão.

Material examined. BR, MA: Carolina municipality, PARNA Chapada das Mesas, Estiva creek , 07º06’59.8”S, 47º21’21.0”W, 20–30/IV/2013, F. Limeira-de-Oliveira and T. A. Silva, 2 males. Caxias municipality, Sumidouro do Padre I creek, 04º53’23.9”S, 43º25’53.9”, 04–05/IX/2014, C.A.S. Azevedo, 2 males, same data except 20–21/ XII/2014, 1 male. Caxias municipality, Correntinha creek, 04°49’34.29”S, 43°22’36.64”W, 26/VII/2019, D.S. S, Araújo, C.J. Franco, I.N.C. Oliveira and A.S. Carvalho, 1 male (reared) .

Morphometric data. Male (n=6) forewing length: 8.9–9.1 mm (mean= 9 mm).

Remarks. The species has been associated with the Amazon Forest of northern Brazil ( Ribeiro & Santos 2018; Menezes et al. 2020) ( Fig. 1C ). Rippel et al. (2019) reported the first record A. minuta from a location covered by Cerrado, but still considered to lie the North region. Our records in the State of Maranhão, are the first records from northeastern Brazil and the second record from Cerrado ( Fig. 1C ).

Figures

FIGURES 1A–D. Maps of South America with emphasis on distribution of the species in Brazil and Maranhão State highlighted. A, Anacroneuria atrifrons and A. manauensis; B, A. singularis and A. leccii sp. nov.; C, A. minuta; D, A. marlieri.

FIGURES 2A–F. Males of some species found in Maranhão State, Brazil. A–B, Anacroneuria atrifrons: A, head and pronotum; B, wings (forewing above, hind wing below). C–D, Anacroneuria minuta: C, head and pronotum; D, wings (forewing above, hind wing below). E–F, Anacroneuria singularis: E, head and pronotum; F, wings (forewing above, hind wing below). (Scale bars: 1.0 mm)