Hexapopha marajoara, 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 : 121-124

Hexapopha marajoara sp. nov.

Figs 82–84 ; Map 6

Type material: Holotype: male from Floresta Nacional de Caxiuan „, Melgaço, Pará, Brazil (01º44’15.5”S, 51º26’42.0”W), Apr. 01, 1996, E. Atrop. leg., deposited in MPEG 37966, PBI_OON 46364 . Paratypes: same data as holotype 1♀ (MPEG 37967, PBI _ OON 46345 ) ; Jul. 01, 1996, B. Rufesc leg., 1♁ (MPEG 37970, PBI _ OON 46346 ) ; 1♁, 1♀ (MPEG 37968, PBI _ OON 46347 ) ; 1♀ (MPEG 37969, PBI _ OON 46353 ) .

Etymology. The specific name is an adjective that means the one who lives on the Marajó archipelago, in Pará.

The name of the Marajó island came from the Tupi language, mibaraió, meaning the bulkhead of the sea.

Diagnosis. Males ressemble those of H. ubicki s p. nov., H. quadraginta sp. nov. and H. ilhoa 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 and by the endite’s P1 transversally oriented, folded over itself, adjacent to mp and devoid of prolateral process ( Figs 75C , 78C , 81C ); they differ from those of H. ubicki s p. nov., by the endite’s P2 not laminar, with narrow apices ( Fig. 84C ) (laminar, with broad tip, in H. ubicki s p. nov.), from those of H. quadraginta sp. nov. by the conductor tip wide ( Fig. 84H ) (conductor tip acute in H. quadraginta sp. nov.) and from those of H. ilhoa sp. nov. by the conductor as long as the embolus ( Fig. 84G, H ) (longer than the embolus in Hexapopha ilhoa sp. nov.). Females are similar to those of H. corniculata sp. nov. and H. numerosa sp. nov. by the absence of postepigastric scape, the lip-shaped, wider than long postepigastric plate and by the copulatory opening positioned on postepigastric plate ventral surface ( Figs 51F–H , 52K , 59G , 60J–L ); they differ from those of H. corniculata sp. nov. by the U-shaped postepigastric plate (V-shaped in H. corniculata sp. nov.) and from those of H. numerosa sp. nov. by the strongly sclerotized, curved lateral apodemes ( Figs 83G–H ) (weakly sclerotized, straigt lateral apodemes in H. numerosa sp. nov.).

Description. Male (PBI_OON 46364). Total length 1.60. 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 granulate, fovea present ( Figs 82B–C ). Eyes ALE circular, PME circular, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by less than their radius, ALE-PLE separated by less than ALE radius, PME touching, PLE-PME separated by less than PME radius ( Fig. 82E ). Sternum as long as wide, orange-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow with rows of small pits, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture absent; prosoma pedicelar region with process ( Figs 82D , 84A ). Mouthparts: Chelicerae distal region abruptly narrowed ( Fig. 82E ). Labium anterior margin not indented at middle ( Fig. 84C ). Endites with a median projection (mp), a P1 and a P2; mp short, directed anteriorly; P1 lamellar, situated posteriorly to mp, directed anteriorly, tip bent prolaterally. P2 short, tip narrow, situated anteriorly to mp ( Figs 82B–C ). ABDOMEN: dorsum soft portions pale orange. Book lung covers small, very narrow. Dorsal scutum orange-brown, covering full length of abdomen, no soft tissue visible from above. Epigastric scutum slightly protruding. Postepigastric scutum orange-brown, almost semicircular, covering nearly full length of abdominal length ( Figs 82B,G ). LEGS: yellow. GENITALIA: Epigastric region with sperm pore situated at level of anterior spiracles. Palp proximal segments yellow; embolus tip flattened, not bent upwards; conductor present, without projections, as long as embolus, tip flattened ( Figs 82G–I , 84E–H ).

Female (PBI_OON 46345).As in male except as noted. Total length 1.61. CEPHALOTHORAX: Carapace pars cephalica strongly elevated in lateral view ( Fig. 83B ). Eyes ALE oval. Mouthparts: Chelicerae, endites and labium pale orange. Labium rectangular ( Fig. 83D ). GENITALIA: Ventral view: postepigastric plate short; postepigastric scape absent; copulatory orifice slit-shaped, the posterior end of the slit is slightly widened. Dorsal view: anterior genitalic process with small arms; genital duct coiled ( Figs 83G–H , 84I–L ).

Other material examined. Brazil. Pará. Melgaço: Floresta Nacional de Caxiuan „, (01º44’15.5”S, 51º26’42.0”W) , Oct. 16, 1995, P. Glom leg., 1♁ (MPEG 37971, PBI _ OON 46348 ) ; Mar. 22, 1996, P. Glom leg., 1♀ (MPEG 37977, PBI _ OON 46356 ) ; Jun. 26, 1996, L. Mic leg., 1♀ (MPEG 37979, PBI _ OON 46358 ) ; 1♁ (MPEG 37980, PBI _ OON 46343 ) ; Jun. 27, 1996, 1♁ (MPEG 37972, PBI _ OON 46349 ) ; Apr. 15, 1996, 1♀ (MPEG 37976, PBI _ OON 46355 ) ; Jul. 01, 1996, J. Alb. leg., 1♀ (MPEG 37973, PBI _ OON 46351 ) ; May 02, 1996, M. Guan. leg., 1♀ (MPEG 37975, PBI _ OON 46354 ) ; May 02, 1996, 1♁ (MPEG 37982, PBI _ OON 44902 ) ; Jul. 29, 1995, B. Rub. leg., 1♁ (MPEG 37981, PBI _ OON 44901 ) ; 1♁ (MPEG 37974, PBI _ OON 46344 ) ; 1♀ (MPEG 37978, PBI _ OON 46357 ) .

Distribution. Known only from Melgaço, state of Pará, Brazil ( Map 6 ).

Figures

MAP 6. Distribution of Hexapopha species.

FIGURES 51A–H. Hexapopha corniculata sp. nov., female (MPEG 10820; PBI_OON 45132). 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 52A–L. Hexapopha corniculata sp. nov., SEM images. A–H male (MPEG 19425; PBI_OON 43846). I–L female (MPEG 10823; PBI_OON 45133). A habitus, lateral view. B carapace, ventral view. C mouthparts, ventral view. D–E left palp. D prolateral view. E retrolateral view. F sperm pore, ventral view. G–H embolus. G prolateral view. H retrolateral view. I carapace, anterior view. J mouthparts, ventral view. K epigastric region, ventral view. L internal genitalia, dorsal view. Abbreviations: as, anterior sclerite; mp, median projection; P, projection; vs, ventral surface of distal hook of posterior sclerite.

FIGURES 59A–H. Hexapopha numerosa sp. nov., female (MPEG 15368; PBI_OON 45950). 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 60A–L. Hexapopha numerosa sp. nov., SEM images. A–I male (MPEG 37036; PBI_OON 46329). J–L female (MPEG 15316; PBI_OON 45438). A habitus, lateral view. B carapace, ventral view. C mouthparts, ventral view. D endites, showing median projections and projection P1. E–F left palp. E prolateral view. F retrolateral view. G–I embolus. G prolateral view. H retrolateral view. I apical view. J epigastric region, ventral view. K internal genitalia, dorsal view (arrow: slit-shaped opening on posterior uterine sclerite). L detail of J, copulatory opening. Abbreviations: as, anterior sclerite; d, duct; mp, median projection; P, projection; vs, ventral surface of distal hook of posterior sclerite.

FIGURES 75A–L. Hexapopha ubicki sp. nov., SEM images. A–H male (MPEG 10129; PBI_OON 45870). I–L female (MPEG 37710; PBI_OON 45572). A carapace, ventral view. B mouthparts, ventral view. C left endite, ventral view, showing median projections and projections P1 and P2. D chelicerae, posterior view (arrow: row of five long, medially directed setae; arrowhead: group of shorter spines). E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I carapace, lateral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of J, showing epigastric escape. Abbreviations: as, anterior sclerite; mp, median projection; P, projection; pmp, posteromedian part of endite; sc, postepigastric scape.

FIGURES 78A–L. Hexapopha quadraginta sp. nov., SEM images. A–H male (MPEG 37844; PBI_OON 46320). I–L female (MPEG 37844; PBI_OON 46320). A–B carapace. A lateral view. B 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 carapace, ventral view. J epigastric region, lateral view (arrow: postepigastric scape). K detail of J, showing slit-shaped opening. L internal genitalia, dorsal view. Abbreviations: as, anterior sclerite; c, conductor; d, duct; E, embolus; mp, median projection; P, projection; ps, posterior sclerite.

FIGURES 81A–L. Hexapopha ilhoa sp. nov., SEM images. A–I male (MCN 5178; PBI_OON 46370). J–L female (MCN 5178; PBI_OON 46370). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D–E endites. D lateral view. E detail of projections. F–G left palp. F prolateral view. G retrolateral view. H–I embolus. H prolateral view. I retrolateral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of K, showing genital duct. Abbreviations: as, anterior sclerite; c, conductor; d, duct; E, embolus; mp, median projection; P, projection; ps, posterior sclerite; sc, postepigastric scape.

FIGURES 82A–I. Hexapopha marajoara sp. nov., male (MPEG 37970; PBI_OON 46346). 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 83A–H. Hexapopha marajoara sp. nov., female (MPEG 37969; PBI_OON 46353). 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 84A–L. Hexapopha marajoara sp. nov., SEM images. A–H male (MPEG 37980; PBI_OON 46343). I–L female (MPEG 37976; PBI_OON 46355). A carapace, ventral view. B–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 copulatory opening. K internal genitalia, dorsal view. L detail of K, showing genital duct. Abbreviations: c, conductor; d, duct; E, embolus; mp, median projection; P, projection.