Eustala lisei, Poeta, Maria Rita Muniz, 2014

Poeta, Maria Rita Muniz, 2014, The orb-weaving spider genus Eustala Simon, 1895 (Araneae, Araneidae): eight new species, redescriptions, and new records, Zootaxa 3872 (5), pp. 440-466 : 448-450

Eustala lisei new species

Figs 38–46 , 86

Type material. Holotype: ♂, Parque Estadual do Delta do Jacuí (Fazenda Pontal), Triunfo, Rio Grande do Sul, Brazil, 29°56’S, 51°43’W, 28.I.1999, A.B. Bonaldo ( MCN 30206 ). Paratypes: 2♀, Pantanal , Mato Grosso, Brazil, 16°13’S, 56°36’W, 04.–10.VIII.1992, A.A. Lise & A. Braul ( MCTP 2304 ); ♂, Estação Ambiental Braskem , Triunfo, Rio Grande do Sul, Brazil, 29°56’S, 51°43’W, 11.X.1992, M.A.L. Marques ( MCN 22342 ); ♀, Ilha das Flores , Porto Alegre, Rio Grande do Sul, Brazil, 29°58’S, 51°15’W, 12.X.1998, L. Moura ( MCN 31034 ); ♀, Arroio do Salso , Serraria , Porto Alegre, Rio Grande do Sul, Brazil, 30°01’S, 51°13’W, 17.X.2003, R. Ott & I. Heydrich ( MCN 36351 ).

Additional material examined. BRAZIL, Pará: Oriximiná, 01°40’S, 55°53’W, ♀, 12.XII.2004, F. Picanço ( MCN 38146 ). Mato Grosso: Campo Novo do Parecis ( Salto do Utiarití ), 13°40’S, 57°53’W, ♀, 30.VII.1961, K. Lenko ( MZSP 11266 ). São Paulo: Iporangá, 24°25’S, 48°31’W, ♀, 01.XI.1961, Lenko & Reichosa ( MZSP 6827 ). Rio Grande do Sul: Capão do Leão ( Hortobotânico Irmão Teodoro Luís ), 31°45’S, 52°25’W, ♂, ♀, 25.V.2001, E.N.L. Rodrigues ( MCN 46400 , 46402 ); Triunfo ( Estação Ambiental Braskem ), 29°56’S, 51°43’W, ♀, 29.–30.IV.2003, R. Ott ( MCN 35718 ). URUGUAY, Salto: Espinillar , 31°17’S, 57°55’W, ♀, 31.I.1977, L. Zolessi & M.F. Rodriguez ( FCE 4380 ).

Etymology. The specific name is a patronym honoring the Brazilian arachnologist, and advisor, Arno Antonio Lise from MCTP, Rio Grande do Sul.

Diagnosis. The palp of Eustala lisei n. sp. ( Figs 38, 39 ) is similar to those of E. belissima (see Poeta et al. 2010b: 267, figures 4, 5) by the large and sub-rectangular shaped conductor (ventral view, Fig. 39 ), but differs from these species by the tegular projection excavated (mesal view, Fig. 38 ), and by the lack of the embolus projection, which is characteristic on E. belissima . Eustala lisei n. sp. epigynum ( Figs 41–45 ) is similar to other species of genus by the annulated scape but differs from these species by the long and sinuous scape, with a median wide part ending in a thin apex (ventral view, Fig. 41 ) and, by the median plate that is narrowed posteriorly, funnel shaped (posterior view, Fig. 42 ).

Description. Male (holotype, MCN 30206 ) : Carapace pale yellow, with light gray bands. Sternum pale yellow with gray border. Abdomen subtriangular, with few setae; dorsum whitish with greenish-gray folium ( Fig. 40 ). Posterior median eyes and lateral eyes with black borders. Venter pale yellow with a circular median white patch and white pigment near the spinnerets. Legs pale yellow with brown bands. Total length 3.8. Carapace length 2.0, width 1.8. Leg formula 1243. Length leg I: femur 2.8; patella+tibia 3.4; metatarsus 1.8; tarsus 0.8; total 8.8. Patella+tibia II 2.4; III 1.2; IV 2.1.

Female (paratype, MCN 36351 ) : Carapace pale yellow with light brown bands and central white pigment on the cephalic region. Posterior median eyes and lateral eyes with dark borders. Sternum pale yellow with light gray marks, white pigment, and dark gray borders. Abdomen subtriangular, dorsum crackled, withish-gray, with dark gray folium, and posterior hump ( Fig. 46 ). Venter light gray with white band from the epigastric furrow to the spinnerets; median central white patch undistinguished. Legs pale yellow with light brown bands. Total length 5.1. Carapace length 2.3, width 1.9. Leg formula 1243. Length leg I: femur 3.1; patella+tibia 3.1; metatarsus 2.2; tarsus 0.9; total 9.3. Patella+tibia II 2.8; III 1.5; IV 2.7.

Variation. Male (n=3): total 4.1–3.8; carapace length 2.0–2.0, width 1.8–1.9. Female (n=5): total 6.0–4.3; carapace length 2.4–1.7, width 2.1–1.6. Legs and carapace orange, legs with bands more or less wide. Inconspicuos abdominal humps. Abdomen pale yellow with longitudinal brown marks. Venter of the abdomen pale yellow with a median circular white patch.

Distribution. Brazil: Pará, Mato Grosso, São Paulo, and Rio Grande do Sul. Uruguay: Salto ( Fig. 86 ).

Figures

FIGURES 38 – 46. Eustala lisei n. sp. 38, 39, Palp (38, mesal; 39, ventral). 40, Male habitus, dorsal. 41 – 45 Epigynum (41, ventral; 42, posterior; 43, lateral; 44, posterior, cleared; 45, lateral, cleared). 46, Female habitus, dorsal. Abbreviations: Asc, apex of scape; Tp, tegular projection. Scale bars, 38, 39, 41 – 45, 0.25 mm; 40, 46, 1 mm.

FIGURE 85 – 87. Records of the Eustala species. 85, Eustala guarani n. sp., E. catarina n. sp., E. ericae n. sp., and E. cidae n. sp. 86, Eustala lisei n. sp., E. cuia n. sp., E. farroupilha n. sp., and E. eldorado n. sp. 87, Eustala ulecebrosa (Keyserling, 1892), E. itapocuensis Strand, 1916, E. photographica Mello-Leitão, 1944, and E. mourei Mello-Leitão, 1947. Scale bars, 500 km.