Hexapopha corniculata, 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 : 76-81

Hexapopha corniculata sp. nov.

Figs 50–52 ; Map 4

Type material: Holotype: male from Beneficiamento , Ponto 1, Juruti, Pará, Brazil (02º30’27.4”S, 56º10’39.5”W), Feb. 18–23, 2011, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 1♁, deposited in MPEG 19408 PBI_

OON 43829. Paratypes: All from same locality as holotype, Acampamento Mutum (01º36’44.7”S, 56º11’39.2”W), August 19–25, 2011, D.F. Candiani & N.F. Lo Man Hung leg., 1♀ (MPEG 19437, PBI _ OON 43858 ) ; Jun. 03–10, 2007, D.F. Candiani & N.F. Lo Man Hung leg., 1♀ (MPEG 19438, PBI _ OON 45129 ); (02º36’45.2”S, 56º11’27.5”W) , Feb. 18–23, 2011, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 1♁ (MPEG 19409, PBI _ OON 43830 ) ; Beneficiamento, Ponto 2 (02º30’27.4”S, 56º10’39.5”W), Apr. 03–0,8 2010, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 1♁ (MPEG 19391, PBI _ OON 43812 ) ; Vale do Igarapé Mutum, Platô do Rio Juruti (01º36’44.7”S, 56º11’39.2”W), Aug. 04, 2004, D.F. Candiani & D.R. Santos‑Souza leg., 1♀ (MPEG 10820, PBI _ OON 45132 ) .

Etymology. The specific name is a Latin adjective meaning horn-bearing, in allusion to the horn-shaped endite´s

P3.

Diagnosis. Males of this species resemble H. egua sp. nov., H. izquierdoi sp. nov. and H. gunma sp. nov. by the conductor without proximal projection, with single tip and by the presence of endite’s P3 ( Figs 49C,G , 52C,G , 54C,J , 57D,G ); they differ from those of H. gunma sp. nov. by the narrow booklung covers, smaller than the width of pedicel opening, and from those of H. egua sp. nov. and H. izquierdoi sp. nov. by the horn-shaped endite’s P3 ( Fig. 52C ) (lamellar in H. egua sp. nov. and H. izquierdoi sp. nov.). Females are similar to those of H. numerosa sp. nov. and H. marajoara sp. nov. by the absence of postepigastric scape, the lip-shaped, wider than long postepigastric plate and by copulatory opening positioned on the ventral surface of the postepigastric plate ( Figs 59G , 60J,L , 83G , 84J ); they differ from these species by the V-shaped postepigastric plate ( Figs 51F–H , 52K ) (Ushaped in H. numerosa sp. nov. and H. marajoara sp. nov.).

Description. Male (PBI_OON 43829). Total length 1.53. CEPHALOTHORAX: Carapace dark red brown, without any pattern, pars cephalica with two posterior humps in lateral view, surface of elevated portion of pars cephalica striated, sides, fovea present ( Figs 50B–C ). Eyes ALE circular, PME oval, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by more than their diameter, ALE-PLE separated by less than ALE radius, PME separated by less than their radius, PLE-PME separated by less than PME radius ( Fig. 50E ). Sternum as long as wide, dark red-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow with rows of small pits, without pits, microsculpture everywhere but front ( Figs 50D , 52B ). Mouthparts: Chelicerae, endites and labium dark red brown. Chelicerae distal region abruptly narrowed ( Fig. 50E ). Labium anterior margin anteriorly projecting at middle ( Fig. 52C ). Endites with a median projection (mp), a P1, a P2 and a P3; mp very short; P1 lamellar, bent upwards, situated posteriorly to mp, anterior margin partly serrated. P2 lamellar, situated anteriorly to P1. P3 lamellar, directed anteriorly, situated retrolaterally to P2 ( Figs 50F , 52C ). ABDOMEN: dorsum soft portions yellow. 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. Spinneret scutum present, incomplete ring. Dorsum setae present, light, needlelike. Epigastric area setae uniform, light, needlelike. Postepigastric area setae present, light, needlelike ( Figs 50B,G ). LEGS: yellow. GENITALIA: Epigastric region with sperm pore situated at level of posterior spiracles. Palp proximal segments yellow; embolus tip flattened, not bent upwards; conductor present, tip needlelike, without projections, shorter than embolus ( Figs 50G–I , 52D–H ).

Female (PBI_OON 43858). As in male except as noted. Total length 1.46. Carapace pars cephalica strongly elevated in lateral view ( Fig. 51B ). Eyes posterior eye row recurved from above ( Fig. 50E ). Mouthparts: Labium rectangular. Endites anteromedian tip unmodified ( Figs 51D , 52J ). GENITALIA: Ventral view: postepigastric plate short, V-shaped; postepigastric scape absent; copulatory orifice slit shaped, narrow, situated on the anterior margin of the postepigastric plate. Dorsal view: anterior genitalic process with slightly procurved arms; the posterior uterine sclerite with a slit-shaped opening in its anterior surface ( Figs 51G–H , 52K–L ).

Other material examined. BRAZIL: Pará: Juruti: Acampamento Mutum (01º36’44.7”S, 56º11’39.2”W), Nov. 15–22, 2007, D.F. Candiani & N.F. Lo Man Hung leg., 1♁ (MPEG 19444, PBI _ OON 43865 ) ; 1♁ (MPEG 19440, PBI _ OON 43861 ) ; 1♁ (MPEG 19442, PBI _ OON 43863 ) ; 1♁ (MPEG 19441, PBI _ OON 43862 ) ; 1♁ (MPEG 19443, PBI _ OON 43864 ) ; 1♁ (MPEG 19445, PBI _ OON 43866 ) ; 1♁ (MPEG 19441, PBI _ OON 43862 ) ; 1♁ (MPEG 19439, PBI _ OON 43860 ) ; Jun.10, 2007, 1♀ (MPEG 37713, PBI _ OON 45569 ) ; 1♁ (MPEG 37714, PBI _ OON 45990 ) ; 2♁ (MPEG 37716, PBI _ OON 45996 ) ; 1♀ (MPEG 37712, PBI _ OON 45568 ) ; 1♁ (MPEG 37715, PBI _ OON 45991 ); (02º36’45.2”S, 56º11’27.5”W) , Sept. 04–11, 2002, A.B. Bonaldo et al., leg., 1♁ (MPEG 19412, PBI _ OON 43833 ) ; 1♁ (MPEG 19413, PBI _ OON 43834 ) ; 1♁ (MPEG 19411, PBI _ OON 43832 ) ; 1♁ (MPEG 19410, PBI _ OON 43831 ) ; 1♁ (MPEG 19381, PBI _ OON 43802 ) ; 1♀ (MPEG 37718, PBI _ OON 46000 ) ; Ramal Mata Secundária, Platô, Plote 3 (02º33’07.22”S, 56º13’06.2”W), 1♀ (MPEG 37717, PBI _ OON 45999 ); (01º33’18.0”S, 56º13’22.4”W) , Sept. 04–11, 2002, A.B. Bonaldo et al., leg., 1♀ (MPEG 19380, PBI _ OON 43801 ); (01º36’44.7”S, 56º11’39.2”W) , Aug. 19–25, 2011, R.F. Saturnino, E.G.S. Cafofo & N.C. Bastos 1♁, 1♀ (MPEG 19461, PBI _ OON 43882 ) ; 1♁ (MPEG 19462, PBI _ OON 43883 ) ; Jun. 03–10, 2007, D.F. Candiani & N.F. Lo Man Hung leg., 3♁, 1♀ (MPEG 19436, PBI _ OON 43857 ) ; Aug. 06, 2008, N.C. Bastos, L.T. Miglio & N.F. Lo Man Hung leg., 1♁ (MPEG 19450, PBI _ OON 43871 ) ; Apr. 05–10, 2010, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 1♁ (MPEG 19454, PBI _ OON 43875 ); (02º33’18.0”S, 56º13’22.4”W) , Aug. 03–08, 2010, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 1♁ (MPEG 19389, PBI _ OON 43810 ) ; 1♀ (MPEG 19388, PBI _ OON 43809 ) ; 1♀ (MPEG 19390, PBI _ OON 43811 ) ; 1♁ (MPEG 19387, PBI _ OON 43808 ) ; Feb. 18–23, 2011, 1♁ (MPEG 19405, PBI _ OON 43826 ) ; Apr. 11–13 2010, 1♁ (MPEG 19385, PBI _ OON 43806 ) . Beneficiamento, Ponto 2 (02º30’27.4”S, 56º10’39.5”W), Aug. 21, 2011, N.C. Bastos 1♀ (MPEG 19404, PBI _ OON 43825 ) . Beneficiamento, Ponto 1, April 12, 2010, B.V.B. Rodrigues, N.C. Bastos & N.F. Lo Man Hung leg., 2♀ (MPEG 19386, PBI _ OON 43807 ) ; Feb. 18–23, 2011, 1♁ (MPEG 19406, PBI _ OON 43827 ) ; 1♁ (MPEG 19403, PBI _ OON 43824 ) ; 1♁ (MPEG 19396, PBI _ OON 43817 ) ; 1♁ (MPEG 19398, PBI _ OON 43819 ) . Juruti Estrada Plote 2 (02º36’10.6”S, 56º12’25.8”W), Sept. 11–16, 2002, A.B. Bonaldo et al., leg., 1♁ (MPEG 19423, PBI _ OON 43844 ) ; 1♁ (MPEG 19424, PBI _ OON 43845 ) . Platô Capiranga, Linha 168 E (02º28’22.1”S, 56º12’29.4”W), Feb. 06–13, 2007, N.F. Lo Man Hung & J.A.P. Barreiros leg., 1♁ (MPEG 10099, PBI _ OON 45856 ) ; Jun. 10, 2007, D.F. Candiani & N.F. Lo Man Hung leg., 1♀ (MPEG 19433, PBI _ OON 43854 ) . Platô do Rio Juruti (02º28’00.6”S, 56º12’42.2”W), Sept. 11–16, 2002, A.B. Bonaldo et al., leg., 1♁ (MPEG 19429, PBI _ OON 43850 ) ; 1♀ (MPEG 19427, PBI _ OON 43848 ) ; 1♁ (MPEG

19428, PBI _ OON 43849 ); 1♁ (MPEG 19430, PBI _ OON 43851 ) ; 1♁ (MPEG 19425, PBI _ OON 43846 ) ; 1♁ (MPEG 19419, PBI _ OON 43840 ) ; Sept. 04–11, 2002, 1♁ (MPEG 19431, PBI _ OON 43852 ) ; 1♁ (MPEG 19417, PBI _ OON 43838 ); ♁ (MPEG 19420, PBI _ OON 43841 ) ; 1♁ (MPEG 19418, PBI _ OON 43839 ) . Sítio Barroso (02º27’41.7”S, 56º00’11.6”W), Nov. 16–18, 2007, D.F. Candiani & N.F. Lo Man Hung leg., 1♁ (MPEG 19448, PBI _ OON 43869 ) ; Nov. 15–22, 2007, 1♁ (MPEG 19446, PBI _ OON 43867 ) ; Jun. 03–10, 2007, 2♁ (MPEG 19434, PBI _ OON 43855 ) . Sítio Três Irmãos (02º27’51.4”S, 56º00’08.6”W), Feb. 06–13, 2007, N.F. Lo Man Hung & J.A.P. Barreiros leg., 1♀ (MPEG 10109, PBI _ OON 45849 ) ; 1♀ (MPEG 10083, PBI _ OON 45852 ) ; Aug. 09, 2004, D.F. Candiani leg., 1♁, 1♀ (MPEG 10826, PBI _ OON 45135 ) ; 1♀ (MPEG 10827, PBI _ OON 45138 ) ; Aug. 08–15, 2006, D.F. Candiani & N.F. Lo Man Hung leg., 1♁ (MPEG 10834, PBI _ OON 46010 ) ; 1♁ (MPEG 10828, PBI _ OON 46012 ) ; 1♁ (MPEG 10833, PBI _ OON 46014 ) . Vale do Igarapé Mutum, Platô do Rio Juruti (01º36’44.7”S, 56º11’39.2”W), Aug. 04, 2004, D.F. Candiani & D.R. Santos‑Souza leg., 1♁ (MPEG 10825, PBI _ OON 45137 ) ; 1♀ (MPEG 10823, PBI _ OON 45133 ) ; 1♀ (MPEG 10822, PBI _ OON 45139 ) ; Feb. 06–13, 2007, N.F. Lo Man Hung & J.A.P. Barreiros leg., 1♀ (MPEG 10057, PBI _ OON 45850 ) ; 1♁ (MPEG 10068, PBI _ OON 45851 ) ; 1♁ (MPEG 10111, PBI _ OON 45855 ) ; 1♁ (MPEG 10139, PBI _ OON 45868 ) ; 1♁, 2♀ (MPEG 10140, PBI _ OON 46268 ) ; 1♁ (MPEG 10069, PBI _ OON 46268 ) ; 1♁ (MPEG 10103, PBI _ OON 45863 ) ; 1♁ (MPEG 10092, PBI _ OON 14563 ) ; Aug. 08–15, 2006, D.F. Candiani & N.F. Lo Man Hung leg., 1♁ (MPEG 10842, PBI _ OON 46011 ) ; 1♀ (MPEG 10841, PBI _ OON 46002 ) ; 1♁ (MPEG 10835, PBI _ OON 46003 ) ; 1♁ (MPEG 10829, PBI _ OON 46004 ) ; 1♁ (MPEG 10840, PBI _ OON 46008 ) ; Aug. 10–12, 2006, 1♁ (MPEG 10838, PBI _ OON 46009 ) ; Sept. 13, 2002, A.B. Bonaldo & D.D. Guimarães leg., 1♀ (MPEG 10824, PBI _ OON 45136 ) .

Distribution. Known only from Juruti, state of Pará, Brazil ( Map 4 ).

Figures

MAP 4. Distribution of Hexapopha species.

FIGURES 49A–I. Hexapopha gunma sp. nov., male, SEM images (MPEG 37861; PBI_OON 45704). A–B carapace. A lateral view. B ventral view. C–D mouthparts. C lateral view. D lateral view. E left endite, detail of projections. F abdomen, ventral view. G–I embolus. G prolateral view. H retrolateral view. I ventral view. Abbreviations: mp, median projection; P, projection.

FIGURES 50A–I. Hexapopha corniculata sp. nov., male (MPEG 19409; PBI_OON 43830). 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 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 54A–L. Hexapopha egua sp. nov., male, SEM images (MPEG 10856; PBI_OON 45350). 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 left palp. H prolateral view. I retrolateral view. J–L embolus. J prolateral view. K retrolateral view. L ventral view. Abbreviations: mp, median projection; P, projection.

FIGURES 57A–L. Hexapopha izquierdoi sp. nov., SEM images. A–H male (MPEG 37810; PBI_OON 45602). I–L female (MPEG 37834; PBI_OON 45776). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D–E endites. D ventral view.E lateral view.F left palp, retrolateral view. G–H embolus. G prolateral view.H retrolateral view.I carapace, ventral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L right endite, detail of serrula (arrow). Abbreviations: mp, median projection; P, projection.

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 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.