Hexapopha pantaneira, 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 : 141-142

Hexapopha pantaneira sp. nov.

Figs 98–100 ; Map 6

Type material: Holotype: male from Passo do Lontra , Corumbá, Mato Grosso do Sul, Brazil, Jan. 1998 – Nov. 1999, J. Raizer et al., leg., 1♁, deposited in IBSP 69696, PBI_OON 52499 . Paratypes: same data as holotype, 1♁ ( IBSP 69706 , PBI _ OON 52513 ); 1♁ ( IBSP 69692 , PBI _ OON 52519 ); 1♀ ( IBSP 69708 , PBI _ OON 52528 ); 1♀ ( IBSP 69638 , PBI _ OON 52591 ) .

Etymology. From Brazilian Portuguese, the specific name is an adjective referring to the ones who live in the Pantanal biome.

Diagnosis. Males resemble those of H. kropfi sp. nov., H. caboquinho sp. nov., H. grismadoi sp. nov. H. pithecia sp. nov. and H. manauara 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 , 92D , 97C ). 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 ( Figs 100 B,C ) (strongly folded over itself in those species); from those of H. pithecia sp. nov. by the endite’s P1 club-shaped, with blunt tip ( Fig. 100B ) (abruptly narrowed, with pointed tip in that species) and from those of H. manauara sp. nov. by the endite’s P2 protruded, directed ventraly ( Figs 97C, D ) (not protruded, directed posteriorly in H. manauara sp. nov.). Females resemble those of H. ilhoa sp. nov., m-scripta (Birabén) , H. manauara sp. nov. and H. pithecia 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 , 93G , 96G , 101G ). They differ from those of H. pithecia sp. nov. by the continuous lateral margins of the postepigastric plate (lateral margins excavated in H. pithecia sp. nov.); from those of H. ilhoa sp. nov., by the angular posterior margin of postepigastric plate (rounded in H. ilhoa sp. nov.); from those of m-scripta (Birabén) by the posterior margin of the postepigastric plate forming an angle smaller than 90º (nearly 120º in m-scripta ) and from those of H. manauara sp. nov. by the strongly sclerotized, curved apodemes ( Figs 99F–H ) (weakly sclerotized, straight in H. manauara sp. nov.).

Description. Male (PBI_OON 52499). Total length 1.50. 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 finely reticulate, fovea present ( Figs 98B–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 98E ). Sternum as long as wide, 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; prosoma pedicelar region with small process ( Figs 98D , 100A ). Mouthparts: Chelicerae distal region unmodified ( Fig. 98E ). Labium anterior margin not indented at middle, wider than long ( Fig. 100B ). Endites with a median projection (mp), a P1 and a P2; mp short, directed anteriorly; P1 lamellar, directed posteriorly, situated posteriorly to mp. P2 short, tip narrow, bent downwards, situated anteriorly to mp, anterior and posterior margins serrated ( Figs 98F , 100B–D ). 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 98B–C ). 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, as long as embolus ( Figs 98G–I , 100E–H ).

Female (PBI_OON 52528). As in male except as noted. Total length 1.61. CEPHALOTHORAX: Carapace without any pattern, pars cephalica strongly elevated in lateral view ( Fig. 99B ). Mouthparts: Chelicerae, endites and labium pale orange. Labium rectangular ( Fig. 99D ). ABDOMEN: Dorsal scutum covering more than 3/4 of abdomen, more than 1/2 to most of abdomen width. Postepigastric scutum covering about 3/4 of abdominal length ( Figs 99A–B,F ). GENITALIA: Ventral view: postepigastric plate V-shaped; postepigastric scape present; copulatory orifice circular, situated on the middle of the postepigastric plate. Dorsal view: anterior genitalic process with relatively small, straight arms; genital duct with apparently two coils ( Figs 99G–H , 100I–L ).

Other material examined. Brazil. Mato Grosso do Sul. Corumbá: Passo do Lontra , Jan. 1998 – Nov. 1999, J. Raizer et al., leg., 1 ♁, 1♀ ( IBSP 69640 PBI _ OON 52497 ); 1 ♁, 1♀ ( IBSP 69643 , PBI _ OON 52505 ); 2♁ ( IBSP 69688 , PBI _ OON 52506 ); 5♁ ( IBSP 69644 , PBI _ OON 52507 ) ; 1♀ ( IBSP 69676 , PBI _ OON 52510 ); 1♁ ( IBSP 69689 , PBI _ OON 52511 ); 1♁ ( IBSP 69697 , PBI _ OON 52512 ); 1♁ ( IBSP 69686 , PBI _ OON 52502 ) ; 1♀ ( IBSP 69645 , PBI _ OON 52515 ); 1♁ ( IBSP 69687 , PBI _ OON 52516 ); 1 ♁, 1♀ ( IBSP 69703 , PBI _ OON 52501 ); 1♁ ( IBSP 69685 , PBI _ OON 52521 ) ; 1♀ ( IBSP 69679 , PBI _ OON 52522 ); 1 ♁, 1♀ ( IBSP 69675 , PBI _ OON 52523 ); 1♁ ( IBSP 69673 , PBI _ OON 52524 ); 2♁ ( IBSP 69701 , PBI _ OON 52527 ) ; 1♀ ( IBSP 69655 , PBI _ OON 52500 ); 4♁ ( IBSP 69649 , PBI _ OON 52529 ); 2♁ ( IBSP 69664 , PBI _ OON 52530 ); 1 ♁, 1♀ ( IBSP 69674 , PBI _ OON 52531 ); 2♁ ( IBSP 69660 , PBI _ OON 52532 ); 1♁ ( IBSP 69691 , PBI _ OON 52533 ); 1♁ ( IBSP 69709 , PBI _ OON 52534 ); 1♁ ( IBSP 69711 , PBI _ OON 52535 ); 1 ♁, 1♀ ( IBSP 69670 , PBI _ OON 52536 ); 1♁ ( IBSP 69671 , PBI _ OON 52537 ); 3 ♁, 1♀ ( IBSP 69668 , PBI _ OON 52538 ); 2 ♁, 1♀ ( IBSP 69665 , PBI _ OON 52540 ); 4 ♁, 2♀ ( IBSP 69639 , PBI _ OON 52542 ); 1♁ ( IBSP 69702 , PBI _ OON 52545 ); 1♁ ( IBSP 69678 , PBI _ OON 52547 ); 1♁ ( IBSP 69710 , PBI _ OON 52552 ); 1♁ ( IBSP 69647 , PBI _ OON 52553 ); 1 ♁, 1♀ ( IBSP 69672 , PBI _ OON 52554 ); 2♁ ( IBSP 69657 , PBI _ OON 52555 ) ; 1♀ ( IBSP 69705 , PBI _ OON 52556 ); 1♁ ( IBSP 69658 , PBI _ OON 52558 ) ; 1♀ ( IBSP 69654 , PBI _ OON 52559 ); 1♁ ( IBSP 69636 , PBI _ OON 52560 ); 1 ♁, 1♀ ( IBSP 69695 , PBI _ OON 52563 ) ; 1♀ ( IBSP 69650 , PBI _ OON 52564 ); 1♁ ( IBSP 69693 , PBI _ OON 52567 ) ; 1♀ ( IBSP 69661 , PBI _ OON 52570 ); 1♁ ( IBSP 69652 , PBI _ OON 52575 ); 2♁ ( IBSP 69642 , PBI _ OON 52579 ); 1♁ ( IBSP 69662 , PBI _ OON 52580 ); 1♁ ( IBSP 69669 , PBI _ OON 52581 ); 2♁ ( IBSP 69704 , PBI _ OON 52498 ); 1♁ ( IBSP 69698 , PBI _ OON 52595 .

Distribution. Known only from type locality, Corumbá, state of Mato Grosso do Sul, Brazil ( 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 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 98A–I. Hexapopha pantaneira sp. nov., male (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 mouthparts, ventral view. G abdomen, ventral view. H–I left palp. H prolateral view. I retrolateral view. Scale bars: 0.1mm.

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.