Hexapopha pithecia, Feitosa & Ott & Bonaldo, 2023

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), Zootaxa 5329 (1), pp. 1-150 : 134-137

Hexapopha pithecia sp. nov.

Figs 92–94 ; Map 6

Type material: Holotype: male from Pithecia , Loreto, Peru (05º11’S, 72º42’W), May–Jun. 1990, T. Erwin & D. Silva leg. ( MUSM, PBI _ OON 44910 ) . Paratypes: same data as holotype, 1♁, 3♀ ( MUSM, PBI _ OON 44504 ); 1♀ ( MUSM, PBI _ OON 44913 ) .

Etymology. The specific name is a toponymic noun referring to the type locality.

Diagnosis. Males resemble those of H. kropfi sp. nov., H. caboquinho sp. nov., H. grismadoi sp. nov. H. manauara sp. nov. and H. pantaneira sp. nov. by the conductor approximately the same size of the embolus, without proximal projection and with single tip, by the absence of endite’s P3 and endite’s P1 transversally oriented, folded over itself, devoid of prolateral process and separated from mp by more than its width ( Figs 87C , 89D , 91C , 97C , 100B ). They differ from those of H. kropfi sp. nov., H. caboquinho sp. nov. and H. grismadoi sp. nov. by the endite’s P1 slightly folded over itself ( Fig. 87C ) (strongly folded over itself in those species) and from those of H. manauara sp. nov. and H. pantaneira sp. nov. by the endite’s P1 abruptly narrowed, with pointed tip ( Figs 92D,F ) (club-shaped, with blunt tip in those species). Females resemble those of H. ilhoa sp. nov., m-scripta (Birabén) , H. pantaneira sp. nov. and H. manauara sp. nov. by the presence of a V-shaped postepigastric scape fused to a broad (longer than wide or nearly as long as wide) postepigastric plate ( Figs 80G , 96G , 99G , 101G ). They differ by the excavated lateral margins of the postepigastric plate ( Fig. 94E–F ) (not excavated in those species).

Description. Male (PBI_OON 44504). Total length 1.54. CEPHALOTHORAX: Carapace orange-brown, without any pattern, pars cephalica with two posterior humps in lateral view, surface of elevated portion of pars cephalica smooth, sides finely reticulate, fovea present ( Figs 92B–C ). Eyes ALE oval, PME circular, PLE oval; posterior eye row straight from above, procurved 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. 92E ). Sternum wider than long, orange-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow with rows of small pits, surface smooth, without pits, microsculpture absent; prosoma pedicelar region with process ( Fig. 92D ). Mouthparts: Chelicerae distal region abruptly narrowed ( Fig. 92E ). Labium anterior margin anteriorly projecting at middle, wider than long ( Fig. 92D ). Endites with a P1 and a P2; mp not observed in SEM; P1 lamellar, directed posteriorly, situated posteriorly to P2. P2 tip narrow, directed anteriorly ( Figs 92D,F ).ABDOMEN: dorsum soft portions orange-brown. Book lung covers small, very narrow. Dorsal scutum orange-brown, 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 92A–B,G ). LEGS: pale orange. GENITALIA: Epigastric region with sperm pore situated at level of posterior spiracles. Palp proximal segments pale orange; conductor present, without projections, as long as embolus ( Figs 92G–I ).

Female (PBI_OON 44913). As in male except as noted. Total length 1.60. CEPHALOTHORAX: Carapace pars cephalica strongly elevated in lateral view ( Figs 93B , 94A ). Sternum surface finely reticulate ( Figs 93D , 95B ). Mouthparts: Chelicerae, endites and labium orange-brown; paturon distal region unmodified. Labium rectangular, anterior margin not indented at middle ( Figs 93D , 94B ). GENITALIA: Ventral view: postepigastric plate V-shaped; postepigastric scape present, flattened lateral margins; copulatory orifice slit-shaped, wide, situated on the middle of the postepigastric plate. Dorsal view: anterior genitalic process with straight arms; genital duct forming one or two coils; the posterior uterine sclerite has a slit-shaped opening in its anterior surface ( Figs 93G–H , 94E–I ).

Other material examined. None.

Distribution. Known only from type locality, Pithecia, Loreto, Peru ( Map 6 ).

Figures

MAP 6. Distribution of Hexapopha species.

FIGURES 80A–H. Hexapopha ilhoa sp. nov., female (MCN 5178; PBI_OON 46370). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F abdomen, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.

FIGURES 87A–L. Hexapopha kropfi sp. nov., SEM images. A–H male (MPEG 37936; PBI_OON 46074). I–L female (MPEG 37936; PBI_OON 46074). A habitus, lateral view. B carapace, ventral view. C mouthparts, ventral view. D endites, lateral view. E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I epigastric region, ventral view. J detail of I, showing slit-shaped opening and postepigastric scape. K epigastric region, lateral view. L internal genitalia, dorsal view. Abbreviations: d, duct; la, labium; mp, median projection; P, projection; sc, postepigastric scape.

FIGURES 89A–I. Hexapopha caboquinho sp. nov., male, SEM images (MPEG 37784; PBI_OON 45397). A–B carapace. A lateral view. B ventral view. C mouthparts, lateral view. D endites, ventral view. E abdomen, lateral view. F sperm pore, ventral view. G left palp, prolateral view. H–I embolus. H prolateral view. I retrolateral view. Abbreviations: la, labium; mp, median projection; P, projection.

FIGURES 91A–L. Hexapopha grismadoi sp. nov., male, SEM images (MPEG 37875; PBI_OON 45878). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D–E endites. D ventral view. E lateral view. F abdomen, ventral view. G sperm pore, ventral view. H–I right palp. H prolateral view. I retrolateral view. J–K embolus. J prolateral view. K retrolateral view. L left chelicera, apical view. Abbreviations: la: labium; mp, median projection; P, projection.

FIGURES 92A–I. Hexapopha pithecia sp. nov., male (MUSM; PBI_OON 44504). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F mouthparts, ventral view. G abdomen, ventral view. H–I left palp. H prolateral view. I retrolateral view. Scale bars: 0.1mm. Abbreviations: P, projection.

FIGURES 93A–H. Hexapopha pithecia sp. nov., female (MUSM; PBI_OON 44504). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F abdomen, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.

FIGURES 94A–I. Hexapopha pithecia sp. nov., female, SEM images (MUSM; PBI_OON 44504). A–B carapace. A lateral view. B ventral view. C right endite, showing serrula. D ventral scutum, lateral view. E–F epigastric region. E ventral view. F lateral view. G copulatory opening. H internal genitalia, dorsal view. I detail of H, showing genital duct.Abbreviations: d, duct; sc, postepigastric scape.

FIGURES 95A–I. Hexapopha manauara sp. nov., male (INPA; PBI_OON 45475). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F mouthparts, ventral view. G abdomen, ventral view. H–I left palp. H prolateral view. I retrolateral view. Scale bars: 0.1mm.

FIGURES 96A–H. Hexapopha manauara sp. nov., female (INPA; PBI_OON 45396). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F abdomen, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.

FIGURES 97A–L. Hexapopha manauara sp. nov., SEM images. A–F male (INPA; PBI_OON 45471). G–L female (INPA; PBI_OON 45471). A–B carapace. A lateral view. B ventral view. C–D mouthparts. C ventral view (asterisk: posterior part of P1). D lateral view. E detail of D, showing projection P1. F embolus, ventral view. G–H carapace. G anterolateral view. H ventral view. I chelicerae, apical view. J abdomen, ventral view. K epigastric region, ventral view. L internal genitalia, dorsal view. Abbreviations: mp, median projection; P, projection; sc, postepigastric scape.

FIGURES 99A–H. Hexapopha pantaneira sp. nov., female (IBSP 69640; PBI_OON 52497). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F abdomen, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.

FIGURES 100A–L. Hexapopha pantaneira sp. nov., SEM images. A–H male (IBSP 69640; PBI_OON 52497). I–L female (IBSP 69640; PBI_OON 52564). A carapace, ventral view. B mouthparts, ventral view (asterisk: posterior part of projection P1). C–D endites. C lateral view. D ventral view, detail of median projection and P2. E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I–J epigastric region. I ventral view. J posterior view, showing postepigastric scape and copulatory opening (arrow). K internal genitalia, dorsal view. L detail of K, showing genital duct (arrow). Abbreviations: mp, median projection; P, projection; sc, postepigastric scape.

FIGURES 101A–H. Hexapopha m-scripta (Birabén), female (MCTP 1157; PBI_OON 44499). A–B habitus. A dorsal view. B lateral view. C–E carapace. C dorsal view. D ventral view. E anterior view. F abdomen, ventral view. G–H epigastric region. G ventral view. H dorsal view. Scale bars: 0.1mm.