Hexapopha sorkini Feitosa & Ott & Bonaldo 2023, sp. nov.
Creators: name: Feitosa, Níthomas M.
name: Ott, Ricardo
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Hexapopha
Hexapopha sorkini

description: Hexapopha sorkini sp. nov.   
Figs 70–71; Map 4  
 Type material: Holotype: male from Gran Sabana 10 Km N. Luepa, 1500 m, Luepa, Bolivar, Venezuela, Jun. 26–Jul. 11, 1987, S. & J. Peck leg., 1♁, deposited in AMNH, PBI _ OON 38013). Paratypes: same data as holotype, 1♀ (AMNH, PBI _ OON 46280); 1♁ (AMNH, PBI _ OON 38012); Jun. 1–11, 1987, 1♁ (AMNH, PBI _ OON 28).   
 Etymology. The specific name is a patronym honoring Louis Sorkin (AMNH), for his great help managing Oonopidae shipments from AMNH to globiners around the world.   
 Diagnosis. Males resemble those of H. brasiliana by the endite’s P1 with a prolateral process (Fig. 69D); they differ by that process being slightly serrated, not bent upwards. (Fig. 72E). Females resemble those of H. una sp. nov., H. brasiliana (Bristowe), H. baehrae sp. nov., H. hone Platnick, Berniker & Víquez, H. pithecia sp. nov., H. ilhoa sp. nov., m-scripta (Birabén), H. pantaneira sp. nov. and H. manauara sp. nov. by the presence of a postepigastric scape fused to a broad (longer than wide or nearly as long as wide) postepigastric plate (Figs 7G, 62G, 68G, 80G, 93G, 96G, 99G, 101G, Platnick et al., 2014, fig. 78). They differ by the trapezoid postepigastric plate and by the inconspicuous scape, with sinuous posterior margin (Fig. 71H) (scape conspicuous, U-shaped in H. una sp. nov., H. brasiliana (Bristowe), H. baehrae sp. nov., H. hone Platnick, Berniker & Víquez; V-shaped in H. pithecia sp. nov., H. ilhoa sp. nov., m-scripta (Birabén), H. pantaneira sp. nov. and H. manauara sp. nov.).   
 Description. Male (PBI_OON 38013). Total length 1.55. CEPHALOTHORAX: Carapace orange-brown, with Coxapopha -like pattern, pars cephalica with two posterior humps in lateral view, surface of elevated portion of pars cephalica smooth, sides striated, fovea present (Figs 70B–C). Eyes ALE oval, PME circular, PLE oval; posterior eye row straight from above, recurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching, PLE-PME separated by less than PME radius (Fig. 70E). Sternum wider than long, pale orange, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow with rows of small pits, surface finely reticulate, without pits, microsculpture absent; presence of two elevated structures in the middle of the sternum (Figs 70D, 72B). Mouthparts: Chelicerae distal region unmodified (Fig. 70E). Labium anterior margin anteriorly projecting at middle, wider than long (Fig. 72D). Endites with a median projection (mp), an prolateral process of P1, and P1 and P2; mp very short, anterior margin serrated; P1 lamellar, situated posteriorly to mp, laterally to prolateral process of P; prolateral process of P1short, anterior margin serrated; P2 lamellar, tip narrow, situated anteriorly to mp (Figs 70F, C–E). ABDOMEN: dorsum soft portions pale orange. Book lung covers small, very narrow. Dorsal scutum orange-brown, without color pattern, covering full length of abdomen, no soft tissue visible from above. Epigastric scutum not protruding. Postepigastric scutum orange-brown, almost semicircular, covering nearly full length of abdominal length (Figs 70B, G). LEGS: pale orange. GENITALIA: Epigastric region with sperm pore situated at level of posterior spiracles. Palp proximal segments pale orange; embolus tip flattened, not bent upwards; conductor present, without projections, shorter than embolus, tip flattened (Figs 70G–I, 72F–I).   
 Female (PBI_OON 46280). As in male except as noted. Total length 1.75. CEPHALOTHORAX: Carapace pars cephalica strongly elevated in lateral view (Figs 71B). Mouthparts: Chelicerae, endites and labium pale orange. Labium rectangular (Fig. 71D). GENITALIA: Ventral view: postepigastric plate with slightly W-shaped posterior margin; postepigastric scape present (Fig. 71H).   
 Other material examined. None.   
 Distribution. Known only from type locality, Luepa, state of Bolivar, Venezuela (Map 4).
description: Published as part of Feitosa, Níthomas M., Ott, Ricardo & Bonaldo, Alexandre B., 2023, Meeting the southern brothers: a revision of the Neotropical spider genus Hexapopha Platnick, Berniker & Víquez, 2014 (Araneae, Oonopidae), pp. 1-150 in Zootaxa 5329 (1) on pages 105-108, DOI: 10.11646/zootaxa.5329.1.1, http://zenodo.org/record/8244009