Hexapopha excavata, 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 : 97-101

Hexapopha excavata sp. nov.

Figs 64–66 ; Map 6

Type material: Holotype: male from Fazenda Santa Marta , Tailândia, Pará, Brazil (02°46’33.2”S, 48°46’48.2”W), May 13–14, 2003, Equipe IPAN leg., 1♁, deposited in MPEG 10923, PBI_OON 45368 . Paratypes: same data as holotype, 1♀ (MPEG 10971, PBI _ OON 45364 ) ; 1♀ (MPEG 10994, PBI _ OON 45387 ) ; Jul. 19–30, 2003, Equipe IPAN leg., 1♁ (MPEG 10918, PBI _ OON 45372 ) ; 1♁ (MPEG 10919, PBI _ OON 45374 ) ; Fazenda Rio Capim , Goianésia, Pará, Brazil (03º18’50”S, 48º28’54”W) Jun. 17, 2003, Equipe IPAN leg., 1♀ (MPEG 10991, PBI _ OON 45385 ) .

Etymology. The specific name is a Latin adjective meaning excavated, alluding to the spoon-shaped female postepigastric plate.

Diagnosis. Males of this species resemble those of H. baherae sp. nov. and H. numerosa sp. nov. by the conductor approximately the same size of the embolus, without proximal projection and with single tip, endite’s P1 longitudinally oriented, not folded over itself, and by the absence of endite’s P3 ( Figs 60C,H , 63C,H ); they can be distinguished from those of H. numerosa sp. nov. by endite’s P1 directed posteriorly ( Figs 66C–D ) (directed anteriorly in H. numerosa sp. nov.) and from those of H. baherae sp. nov. by the endite’s P2 represented by a small acute process ( Figs 66C,D ) (a large bent plate in H. excavata sp. nov.). Females resemble those of H. tallitae sp. nov. and H. platnicki sp. nov. by the lack of a postepigastric scape and by the long postepigastric plate, tongue-shaped ( Figs 28J , 31J ). They differ by the excavated postepigastric plate, ( Figs 65F–H , 66J ) (not excavated in both H. tallitae sp. nov. and in H. platnicki sp. nov., Figs 28J , 31J ).

Description. Male (PBI_OON 45368). Total length 1.45. CEPHALOTHORAX: Carapace pale orange, with Coxapopha -like pattern, pars cephalica strongly elevated in lateral view, surface of elevated portion of pars cephalica smooth, sides striated, fovea present ( Figs 64B–C , 66A ). Eyes ALE oval, PME oval, PLE circular; posterior eye row recurved from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius ( Fig. 64E ). Sternum as long as wide, orange-brown, median concavity absent, with radial furrows between coxae I–II, II–III, III–IV, furrow wrinkled, surface smooth, without pits, microsculpture only in furrows ( Figs 64D , 66B ). Mouthparts: Chelicerae distal region abruptly narrowed ( Fig. 64E ). Labium anterior margin anteriorly projecting at middle ( Fig. 66C ). Endites with a median projection (mp), a P1 and a P2; mp very short, with wide base and narrow tip, directed anteriorly; P1 relatively long, directed posteriorly, anterior margin serrated. P2 very short, tip needlelike, situated anteriorly to P1 ( Figs 64F , 66C–E ). 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 not protruding. Postepigastric orange-brown, almost semicircular, covering nearly full length of abdominal length ( Figs 64B, G ). LEGS: yellow. GENITALIA: Epigastric region with sperm pore situated posteriorly in relation to posterior spiracles ( Fig. 64G ). Palp proximal segments pale orange; embolus tip not bent upwards; conductor present, without projections, as long as embolus ( Figs 64G–I , 66G–I ).

Female (PBI_OON 45387). As in male except as noted. Total length 1.49. CEPHALOTHORAX: carapace without any pattern, fovea absent ( Fig. 65C ). Eyes ALE circular, PME circular, PLE oval; ALE separated by more than their diameter ( Fig. 65E ). Sternum pale orange, furrow smooth, surface finely reticulate, microsculpture medially and in furrows. Mouthparts: Chelicerae, endites and labium pale orange. Labium rectangular, anterior margin not indented at middle ( Fig. 65D ). ABDOMEN: dorsum soft portions yellow. Dorsal scutum pale orange. Postepigastric scutum pale orange ( Figs 65A–B, F ). GENITALIA: Ventral view: postepigastric plate relatively long, tongue-shaped, concave; postepigastric scape absent; copulatory orifice slit-shaped, narrow, situated behind elevated anterior margin of posterior ventral scutum in depression. Dorsal view: anterior genitalic process with slightly recurved arms ( Figs 65G–H , 66J–L ).

Other material examined. Brazil. Pará. Goianésia: Fazenda Rio Capim (03º18’50”S, 48º28’54”W) Jul. 30, 2002, Equipe IPAN leg ., 1♀ (MPEG 10993, PBI _ OON 45360 ) ; 1♀ (MPEG 10990, PBI _ OON 45355 ) ; 1♀ (MPEG 11001, PBI _ OON 45365 ) ; Jun. 15–29, 2003, 1♀ (MPEG 10981, PBI _ OON 45391 ) ; 1♀ (MPEG 10977, PBI _ OON 45978 ) ; 1♀ (MPEG 10985, PBI _ OON 45377 ) ; 1♀ (MPEG 10995, PBI _ OON 45378 ) ; 1♀ (MPEG 10973, PBI _ OON 45380 ) ; Jun. 17, 2003, 1♀ (MPEG 10989, PBI _ OON 45390 ) ; 1♀ (MPEG 10982, PBI _ OON 45394 ) ; 1♁, 1♀ (MPEG 10922, PBI _ OON 45980 ) . Nova Ipixuna: Maçaranduba (06º15’41”S, 49º10’02”W), MPEG team leg ., 1♀ (MPEG 37772, PBI _ OON 45693 ) ; 1♀ (MPEG 37774, PBI _ OON 45685 ) . Novo Repartimento: Fazenda Arataú (04º02’40”S, 50º23’05.55”W), Jun. 17–18, 2002, Equipe IPAN leg ., 2♀ (MPEG 10980, PBI _ OON 45386 ) . Tailândia: Fazenda Santa Marta (02°46’33.2”S, 48°46’48.2”W), May 22–28, 2002, Equipe IPAN leg ., 2♀ (MPEG 10986, PBI _ OON 45384 ) ; 1♀ (MPEG 10983, PBI _ OON 45362 ) ; 1♀ (MPEG 10998, PBI _ OON 45363 ) ; 1♀ (MPEG 10992, PBI _ OON 45382 ) ; May 13–14, 2003, 2♀ (MPEG 10988, PBI _ OON 45357 ) ; 1♀ (MPEG 10914, PBI _ OON 45370 ) ; 1♀ (MPEG 10997, PBI _ OON 45356 ) ; 1♁ (MPEG 10917, PBI _ OON 45369 ) ; 1♀ (MPEG 10972, PBI _ OON 45379 ) ; Jul. 19–30, 2003, 1♁, 2♀ (MPEG 10915, PBI _ OON 45371 ) ; 1♁ (MPEG 10920, PBI _ OON 45373 ) ; 1♀ (MPEG 10968, PBI _ OON 45359 ) ; 1♁ (MPEG 10924, PBI _ OON 45375 ) ; 1♁ (MPEG 10916, PBI _ OON 45376 ) ; 1♀ (MPEG 10967, PBI _ OON 45812 ) ; May 19–28, 2002, 1♀ (MPEG 10970, PBI _ OON 45361 ) . Maranhão: Reserva Biológica do Gurupi , locality unknown , 1♀ (MPEG 37773, PBI _ OON 46314 ) . Data unknown, 1♁ (MPEG 37775, PBI _ OON 46102 ) .

Distribution. Known from the state of Pará and west of Maranh„o state, Brazil ( Map 6 ).

Figures

MAP 6. Distribution of Hexapopha species.

FIGURES 28A–L. Hexapopha tallitae sp. nov., SEM images. A–I male (MPEG 37103; PBI_OON 46100). J–L female (MPEG 37097; PBI_OON 44879). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D–E endites, lateral view (asterisk: prolateral process of P1). 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: d, duct; mp, median projection; P, projection.

FIGURES 31A–L. Hexapopha platnicki sp. nov., SEM images. A–H male (MPEG 37731; PBI_OON 45513). I–L female (MPEG 37731; PBI_OON 45513). A carapace, ventral view. B endites, ventral view (asterisk: prolateral process of P1). C detail of B, showing projection P2. D abdomen, lateral view. E–F left palp. E prolateral view. F retrolateral view. G–H embolus. G prolateral view. H retrolateral view. I carapace, ventrolateral view. J epigastric region, ventral view. K internal genitalia, dorsal view. L detail of K, showing T-shaped anterior genitalic process.Abbreviations: as, anterior sclerite; d, duct; mp, median projection; P, projection.

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 63A–L. Hexapopha baehrae sp. nov., SEM images. A–I male (MCN 8554; PBI_OON 46377). J–L female (MCN 8554; PBI_OON 46377). A carapace, ventral view. B mouthparts, ventral view. C endites ventral view. D chelicerae, posterior view. E sperm pore, ventral view. 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 T-shaped anterior genitalic process. Abbreviations: as, anterior sclerite; mp, median projection; P, projection.

FIGURES 64A–I. Hexapopha excavata sp. nov., male (MPEG 10919; PBI_OON 45374). 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 65A–H. Hexapopha excavata sp. nov., female (MPEG 10971; PBI_OON 45364). 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 66A–L. Hexapopha excavata sp. nov., SEM images. A–I male (MPEG 10917; PBI_OON 45369). J–L female (MPEG 37774; PBI_OON 45685). A–B carapace. A lateral view. B ventral view. C mouthparts, ventral view. D endites, lateral view. E detail of D, showing projection P2. F chelicerae, posterior view. G left palp, prolateral 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 T-shaped anterior genitalic process. Abbreviations: as, anterior sclerite; d, duct; mp, median projection; P, projection.