Ixchela huberi Valdez-Mondragón, 2013, new species
Creators: name: Valdez-Mondragón, Alejandro
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Ixchela
Ixchela huberi

description: Ixchela huberi new species
Figures 98–109
Type data. MEXICO: Oaxaca: 1 3 holotype (CNAN T0640) [3 December 2005; A. Valdez, O. Francke, H. Montaño, C. Santibáñez] from 3 km E of deviation to Santa Inés del Monte (lat 16.9407°, lon -96.8605°; 2665 m), Distrito Zaachila. Paratypes: 1 Ƥ (CNAN T0641), same data as holotype. 2 3, 6 ƤƤ (one with egg sac), 4 immatures (CNAN T0642 to T0647) [19 September 2009; A. Valdez, C. Santibáñez, R. Paredes, J. A. Cruz] from Santa Inés del Monte (lat 16.9407°, lon -96.8604°; 2270 m), Distrito Zaachila.
Etymology. This species is dedicated to Dr. Bernhard A. Huber in recognition of his contribution to the knowledge of the family Pholcidae around the world, and by his comments and contribution in this work.
Diagnosis. Resembles to I. simoni and I. huasteca, distinguished from I. simoni by the FAC big and rounded in frontal view (Fig. 100), wider and apically flat in lateral view (Fig. 101); by the marginal spots on carapace less marked and wide (Fig. 99); by the darker region around the fovea, on I simoni is continuous from the posterior part of ocular region to posterior part of carapace (Fig. 73), on I. huberi is discontinuous between posterior part of the carapace and the fovea (Fig. 99); from I. huasteca by having FAC wider and shorter in lateral view (Fig. 101); and by the marginal spots on carapace more marked and wider (Fig. 99); from both species by the small epigynum, square-shaped ventrally (Fig. 107), with a ventral conical apophysis in middle part, small and with tip rounded (Figs 106, 107, 109).
Description. Male (Holotype). Prosoma: Carapace pale yellow, with paired long marginal brown spots (Fig. 99). Ocular region brown, with posterior region brown darker and Y-shaped. Fovea with irregular darker region around it, wide and brown (Fig. 99). Clypeus orange, with narrow pale brown longitudinal stripe, barely visible; with two brown spots near the chelicerae (Fig. 102). Chelicerae brown, pale in prolateral part, particulary in basal and distal parts (Fig. 100). Sternum orange, darker towards anterior part. Labium and endites brown, pale distally. Endites yellow in retrolateral part and on retrolateral aphophysis. Legs: Coxae pale orange. Trochanters brown.
Femora brown, paler basally. Patellae brown. Tibiae, metatarsi and tarsi orange. Distally on femora and basal and distally on tibiae with broad brown rings; rings of femora between two pale orange rings. Opisthosoma: Conical, larger than wide (Fig. 98). Gonopore plate larger than wide. Palp: Femur conical, slightly curved ventrally, with VAF ending in small conical tip (Fig. 103). Procursus long, wider in middle part; distally with small spine; conspicuous and rounded VPP with short setae, having the half of length of the procursus (Fig. 103). Embolus with distal-dorsal spine almost straight; projection distal-ventral distally curved (Figs 103, 104). Measurements: Total length 9.10. Carapace 3.45 long, 3.25 wide. Clypeus 1.37 long. Diameter AME 0.17, ALE 0.25, PME 0.21, PLE 0.26. Distance ALE-PME 0.22, PME-PME 0.38. Leg I: 46.98 (12.56+1.52+12.93+14.37+5.60), tibia II: 9.10, tibia III: 8.25, tibia IV: 11.00; tibia I l/d 21.55.
Female (Paratype). (CNAN T0641). Similar to the male, differences: Epigynum: Larger than wide, square (Figs 107, 108), with ventral apophysis on middle part (Figs 107, 109). PP wide, with concavities sac-shaped, large and inconspicuous, between PP and MSE (Fig. 108). Measurements. Total length 8.80. Carapace 3.00 long, 2.80 wide. Clypeus 1.15 long. Diameter AME 0.12, ALE 0.24, PME 0.15, PLE 0.20. Distance ALE-PME 0.19. PME- PME 0.35. Leg I: 42.63 (11.31+1.20+11.87+13.25+5.00), tibia II: 8.25, tibia III: 6.6, tibia IV: 8.0; tibia I l/d 21.59.
Variation. There is continuous variation in size within males and females. Male tibia I: 12.81–13.69 (x = 13.27). Female tibia I: 8.65–13.68 (x = 11.58).
Natural History. The type locality is located in oak-pine forest. The specimens were collected manually on irregular sheet webs on walls next to the road (Fig. 6), specifically in shaded and wetter areas covered with roots and litter (Figs 17, 18).
Distribution. MEXICO: Oaxaca (Fig. 146).
description: Published as part of Valdez-Mondragón, Alejandro, 2013, Taxonomic revision of the spider genus Ixchela Huber, 2000 (Araneae: Pholcidae), with description of ten new species from Mexico and Central America, pp. 285-327 in Zootaxa 3608 (5) on pages 306-308, DOI: 10.11646/zootaxa.3608.5.1, http://zenodo.org/record/216512