Sparianthina milleri Jaeger &amp; Rheims &amp; Labarque 2009, comb. n.
Creators: name: Jaeger, Peter
name: Rheims, Cristina
name: Labarque, Facundo
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Sparassidae
Sparianthina
Sparianthina milleri

description: <i>Sparianthina milleri</i> (Caporiacco, 1955) comb. n. Figs 55-64, 76 <i>Macrinus milleri</i> Caporiacco, 1955: 404, figs 57a–b (description ♁; holotype ♁, Venezuela, Aragua, Rancho Grande, 1.VIII.1949, Racenis leg., MUCV 810, in MBUC, examined). Brignoli 1983: 594. Platnick 2009. <b>Further material examined.</b> VENEZUELA.1 ♁, Rancho Grande, 24.VI.–1.VII.1945, W. Beebee (AMNH); 1 ♁, Aragua, Maracay, Rancho Grande, 1.–10.VIII.1987, Bordan &amp; Peck (AMNH); 2 ♁♁, 1.–10.VIII.1987, Bordan and Peck (AMNH). 1 &amp;female; (PJ 2855), Aragua, Henri Pittier National Park, nr Rancho Grande, 1100-1800 m, 12.–30.XI.1997, T. Pape leg. (NHRS). <b>Diagnosis.</b> Males: embolus massively widened, conductor directed prolaterally; DTA with well differentiated tip in ventral view pointing retrolatero-distally; sperm duct with retrolateral S-shaped bend; RTA massive with various small appendages, palpal tibia appearing triangular (Figs 55-57). Females: epigynal furrows present over entire length of epigyne (but inconspicuous in posterior part), anterior epigynal furrow situated laterally close to margin of epigynal field, posterior furrows S-shaped, running from lateral to median body axis (Fig. 58); fertilisation ducts situated at epigastric furrow; glandular appendages long and massive, pointing in an anterior direction, converging (Figs 59-61). <b>Redescription.</b> Male (Holotype, MUCV 810). Total length 5.7. Prosoma: 2.7 long, 2.7 wide. Opisthosoma: 2.6 long, 2.0 wide. Eye diameters and interdistances: AME 0.24, ALE 0.16, PME 0.22, PLE 0.22, AME–AME 0.10, AME–ALE 0.06, PME–PME 0.24, PME–PLE 0.20, AME–PME 0.18, ALE–PLE 0.24. Legs: I: femur 4.0, patella 1.3, tibia 4.4, metatarsus 3.7, tarsus 1.6, total 15.0; II: 4.6, 1.4, 4.8, 4.1, 1.6, 16.5; III: 3.6, 1.1, 3.3, 3.3, 1.2, 12.5; IV: 4.2, 1.0, 3.8, 4.2, 1.6, 14.8. Palp as in diagnosis. RTA massive, with wide dorsal branch bearing a small distalmedian projection. Ventral branch bifid. Embolus and conductor arising from tegulum at a 9-o’clock-position (Figs 55-57). Colouration generally brown (Fig. 76). Specimen very badly preserved. <b>Description</b>. Female. Total length 6.6. Prosoma: 3.0 long, 2.9 wide, anterior width 1.5. Opisthosoma: 3.6 long, 2.5 wide. Eye diameters and interdistances: AME 0.17, ALE 0.25, PME 0.22, PLE 0.27, AME–AME 0.11, AME–ALE 0.05, PME–PME 0.25, PME– PLE 0.24, AME–PME 0.25, ALE–PLE 0.22, clypeus AME 0.33, clypeus ALE 0.29. Palp: femur 1.2, patella 0.7, tibia 1.2, metatarsus -, tarsus 1.7, total 4.8; legs: I 3.5, 1.4, 3.7, 2.8, 1.3, 12.7; II: 4.0, 1.5, 3.9, 3.1, 1.4, 13.9; III: 3.2, 1.2, 2.9, 2.6, 1.1, 11.0; IV: 3.5, 1.0, 3.2, 3.2, 1.4, 12.3. Leg formula 2143. Spination: palp 131, 101, 2121, 1014; femur I–III 323, IV 321; patella 000; tibia 2024; metatarsus I–II 0014, III 2014, IV 3036. Ventral tarsus III and IV with bristles in two rows, tarsus IV with more and stronger bristles. Chelicerae with ca. 15 denticles in a row, basally with two denticles beside this row, 3 (+ 1 small) anterior and 6 posterior teeth (Fig. 63). Palpal claw with 9-10 teeth (Fig. 64). Spinnerets cylindrical. Copulatory organ as in diagnosis. Epigynal field roughly rectangular, with lateral outgrowths (Fig. 58: arrows) and without anterior bands, longer than wide. Posterior lobe of epigyne almost rectangular with rounded edges, distinctly extending beyond the epigastric furrow (Fig. 58). Internal duct system with wide ducts throughout and with reticulate structure close to glandular pores (Figs 59-61). Colouration. Body and appendages yellowish-brown. Dorsal prosoma with darker striae and posterior-marginal band, fovea marked. Legs with indistinct spine patches. Sternum, labium, ventral gnathocoxae and coxae bright pale yellow. Opisthosoma without pattern. <b>Distribution.</b> Known only from the type locality. <b>Relationship.</b> As diagnostic characters for <i>Sparianthina</i> are congruent with those found in <i>S. milleri</i> comb. n. (shifted tegulum, complex RTA, membranous conductor flexible, epigynal furrows only in anterior part, internal duct system of females with glandular appendages, etc.) the species is transferred to this genus. Relationships within the genus cannot be recognised.
description: Published as part of <i>Jaeger, Peter, Rheims, Cristina &amp; Labarque, Facundo, 2009, On the huntsman spider genera Sparianthina Banks, 1929 and Anaptomecus Simon, 1903 from South and Central America (Araneae, Sparassidae), pp. 115-147 in ZooKeys 16 (16)</i> on pages 128-130, DOI: 10.3897/zookeys.16.236, http://zenodo.org/record/576479
description: {"references": ["Caporiacco L di (1955) Estudios sobre los aracnidos de Venezuela. 2 a parte: Araneae. Acta biologica venezuelica 1: 265 - 448.", "Platnick NI (2009) The world spider catalog, version 9.5. American Museum of Natural History, New York. http: // research. amnh. org / entomology / spiders / catalog / (accessed: 15. I. 2009)"]}