Anacroneuria (Plecoptera, Perlidae) from the Mantiqueira Mountains, São Paulo State, Brazil Author Froehlich, Claudio G. text Zootaxa 2010 2365 55 68 journal article 10.5281/zenodo.275765 f50faf79-c50f-4a5d-851e-2a7e2c3e7ed1 1175-5326 275765 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. 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. 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).