Anacroneuria flintorum Froehlich

Froehlich, Claudio G., 2010, Anacroneuria (Plecoptera, Perlidae) from the Mantiqueira Mountains, São Paulo State, Brazil, Zootaxa 2365, pp. 55-68 : 56-59

Anacroneuria flintorum Froehlich

( Figs. 1–6 )

Anacroneuria flintorum Froehlich 2002: 93 . Figs. 1–6 .

Material Examined. BR, SP, Campos do Jordão, PECJ, Córrego Galharada (22°41’29”S, 45°27’58”W), 1 m, 9/I/1986, CGF, LGO; 3 m, 1 f, 04–06/III/1986; 11 m, 1 f, 21–23/XII/1986, CGF, M. Gimenes; 1 m + ex., 23/ XII/1986 – 21/I/1987, CGF, YAT; 1 m + ex., 1 f + ex., 22/I/1987; 3 m + ex., 1 f + ex., 23/I–24/III/1987, CGF, YAT; 3 m, 19–20/XI/1987, CGF, LGO, MJNF, GMC; 7 m, 2 f, 14–16/XII/1987, CGF, LGO; 1 f, 12/III/1988, CGF, LGO; 4 m, 6/XII/1996, CGF, ASM; 1 m, 22/I/1997, CGF, RWH, HP, RG; 1 m, 1 f, 04/XI/2005 – 11/I/ 2006, MRS; 6 m, 10–11/I/2006, MRS; 1 m, 30/I/2006, MRS. Córrego Campo do Meio (22°41’28”S, 45°28’26”W), 1 f, 04/IV/1986. Ribeirão Casquilho (22°39’49”S, 45°25’04”W), 1 f, 07/I/1986, CGF, LGO; 1 m, 05/III/1986, CGF; 1 m, 26/XI/1986; 1 m, 18/XI/1987, CGF, LGO, MJNF, GMC. Guaratinguetá, Engenheiro Eugênio Lefèvre, 1200m, 2 f, 28/IX/1962, LTF, N. Papavero & al. Pindamonhangaba, Fazenda São Sebastião do Ribeirão Grande, Reserva Florestal Votorantim (22°45’S, 45°28’W), ca. 600m asl, 1 m, 21/ XII/1998, ASM & al. RJ, road Petrópolis-Teresópolis, Km 17, 2 f, 18/IV/1977, CM & OS Flint, SAV, FF; Nova Friburgo, Parque Municipal, road Niteroi-Nova Friburgo, Km 63, 1 m, 2 f, 20/IV/1977, CM & OS Flint, SAV, FF; Nova Friburgo, Parque Municipal, 3 m, 2 f, 24/IV/1977, CM & OS Flint, SAV, FF.

Redescription. The species was described based on a single male from Nova Friburgo, RJ, deposited in the National Museum of Natural History, Washington, DC. Subsequently, it was found in PEI, southern São Paulo State ( Bispo & Froehlich 2004) and in the State of Rio Grande do Sul ( De Ribeiro & Froehlich 2007). During this study, I located, in material from the MZSP, more specimens from the original locality and nearby places.

In PECJ, the species shows a variable colour pattern on the head. Some specimens are similar to the holotype ( Froehlich 2002, Fig. 67) and to the male from PEI ( Bispo & Froehlich 2004, Fig. 6 ), with the frons more uniformly coloured. Most, however, show lighter areas along the middle of the frons ( Figs. 1–2 ). In PEI, the species is also variable ( Bispo & Froehlich, 2004). The penial armature ( Figs. 5–6 ) of the present material agrees well with that of the holotype, the main difference being that the keel appears rounded in the holotype and is pointed in males from PECJ. In males from PEI, the keel forms a pair of converging lines. The posterior contour of the female subgenital plate ( Fig. 3 ) has a deeper median notch than that of PEI females; sternum 9 of both is similar. As regards size, forewings of males varied from 12.1 to 15.2 mm (n=38) in length, those of females from 15.2 to 19.0 mm (n=28). Eggs ( Fig. 4 ), 0.20–0.22 x 0.37–0.40 mm (n=8) are more elongate than those of PEI. These differences should be seen as variations between populations.

In PECJ, the species was flying from November to March, but mostly from December and January (40 specimens out of 51).

Figures

FIGURES 1 – 4. Anacroneuria flintorum. Male: (1) head and pronotum; (2) head, second specimen. Female: (3) sterna 8 and 9. (4) Egg. Scale bar: (2), 1 mm; (3), 0.8 mm; (4), 0.3 mm.

FIGURES 5 – 6. Anacroneuria flintorum. Male, penial armature in dorsal and lateral views, respectively. Scale bar: 0.2 mm.