Hexapopha Platnick, Berniker & Víquez, 2014

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 : 6-14

publication ID

https://doi.org/ 10.11646/zootaxa.5329.1.1

publication LSID

lsid:zoobank.org:pub:BDC2B521-8DC4-4680-A210-5CAEF611F02B

DOI

https://doi.org/10.5281/zenodo.8249952

persistent identifier

https://treatment.plazi.org/id/D344879B-FFF5-5E3B-FF13-3FF2FA5CFCBB

treatment provided by

Plazi

scientific name

Hexapopha Platnick, Berniker & Víquez, 2014
status

 

Hexapopha Platnick, Berniker & Víquez, 2014 View in CoL

Hexapopha Platnick, Berniker & Víquez, 2014: 4 View in CoL View Cited Treatment

(type species by original designation Xestaspis reimoseri Fage, 1938 View in CoL ).

Diagnosis: Hexapopha is easily recognized as a member of the Zyngoonops group by the heavily sclerotized and complex endites of males ( Figs 3F View FIGURES 3 , 6F View FIGURES 6 , 16A View FIGURES 16 , 19F View FIGURES 19 ; Platnick et al. 2014: figs 9, 64). The genus is distinguished from all other known genera of the group by the combined presence of six eyes ( Fig. 3C View FIGURES 3 ) (two eyes in Coxapopha ), tube-shaped embolus ( Fig. 5L View FIGURES 5 ) (cone-shaped in Kijabe ), lack of an abdominal dorsal constriction ( Fig. 3K View FIGURES 3 ) (present in Antoonops ), lack of remarkable sclerotized modifications on the sternum and pedicel tube ( Fig. 3L View FIGURES 3 ) (present in Zyngoonops ), as well as the absence of a prolateral series of leaf-shaped setae on the male palpal patella ( Figs 5I–J View FIGURES 5 ) (present in Triaeris ).

Description: Total length, males 1.29–1.81 ( Fig. 1A View FIGURE 1 ), females 1.29–1.92 ( Fig. 1B View FIGURE 1 ). CEPHALOTHORAX. Carapace: ovoid in dorsal view, anteriorly narrowed to 0.49 times its maximum width or less, with rounded posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners with strongly sclerotized, triangular extension, posterolateral surface without spikes, pars thoracica without depressions, without radiating rows of pits; lateral margin straight, rebordered, without denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae needlelike, present, scattered; non-marginal pars thoracica setae needlelike; marginal setae needlelike ( Figs 1A–B View FIGURE 1 ; 3B–C View FIGURES 3 ). Clypeus: margin strongly rebordered, straight in frontal view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more (in female of H. quadraginta sp. nov., low, Fig. 77E View FIGURES 77 ) median projection absent; setae present, needlelike ( Fig. 3C View FIGURES 3 ). Chilum absent. Eyes: six, well developed, all subequal ( Fig. 3C View FIGURES 3 ). Sternum: uniform, fused to carapace, radial furrow opposite coxae III absent, sickle-shaped structures absent, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, anterior corner with strongly sclerotized triangle in male, lateral margin without infra-coxal grooves, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins unmodified, without posterior hump, pleural flaps present; setae sparse, needlelike, evenly scattered, originating from surface, without hair tufts ( Figs 3D–F View FIGURES 3 ). Chelicerae: straight, anterior face unmodified; fangs without toothlike projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae needlelike, evenly scattered, on posterior surface of paturon a vertical row of five long, medially projecting hairs and a group of three small setae located close to outer margin ( Fig. 3H View FIGURES 3 ); paturon inner margin with pairs of enlarged setae, posterior surface unmodified (except in H. una sp. nov. and H. brescoviti sp. nov., with a projection; Figs 8D View FIGURES 8 , 10E View FIGURES 10 ), promargin unmodified, inner margin unmodified, laminate groove absent ( Figs 3H–I View FIGURES 3 ). Labium fused to sternum, in males much more heavily sclerotized than sternum ( Fig. 3F View FIGURES 3 ); in females not heavily sclerotized ( Fig. 7D View FIGURES 7 ). Endites: sexually dimorphic; in males much more heavily sclerotized than sternum, serrula absent, anteromedian tip with backwards folded ridge ( Fig. 19B View FIGURES 19 ); posteromedian part bulging; median projection very short ( Fig. 8C View FIGURES 8 ); endite’s P1 varying from very short ( Fig. 8C View FIGURES 8 ) to very long ( Fig. 16A View FIGURES 16 ); endite’s P2 varying from narrow, spine like ( Fig. 20C View FIGURES 20 ) to large, plate like ( Fig. 16C View FIGURES 16 ) (schematics in Figs 2B–E View FIGURES 2 ); in females with serrula present in single row, same as sternum in sclerotization, unmodified, without projections. ABDOMEN. ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small, sclerotized platelets absent posteriorly; without color pattern ( Figs 11A, B, F View FIGURES 11 , 14A, B, G View FIGURES 14 , 30A, B, F View FIGURES 30 ). Book lung covers varying to small, very narrow ( Fig. 24G View FIGURES 24 ) to large ( Fig. 38G View FIGURES 38 ), without setae, anterolateral edge unmodified. Posterior spiracles not connected by a groove. Pedicel tube short, ribbed ( Fig. 3L View FIGURES 3 ), scuto-pedicel region unmodified, scutum extending far dorsal of pedicel, plumose setae absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum strongly sclerotized (in H. ramirezi sp. nov., weakly sclerotized, indistinguishable in some specimens; Fig. 44B View FIGURES 44 ), without color pattern, not fused to epigastric scutum (in males of H. brescoviti sp. nov. and H. una sp. nov., fused to epigastric scutum, Figs 6B View FIGURES 6 , 9B View FIGURES 9 ), middle surface smooth, sides smooth, anterior half without projecting denticles ( Fig. 3K View FIGURES 3 ). Epigastric scutum strongly sclerotized (in H. ramirezi sp. nov., weakly sclerotized; Fig. 44B View FIGURES 44 ), surrounding pedicel, small lateral sclerites absent ( Fig. 3L View FIGURES 3 ). Postepigastric scutum strongly sclerotized (in H. ramirezi sp. nov., weakly sclerotized; Fig. 44B View FIGURES 44 ), orange-brown, fused to epigastric scutum in male ( Fig. 3J View FIGURES 3 ), not fused to epigastric scutum in female ( Fig. 7F View FIGURES 7 ), anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring ( Fig. 15F View FIGURES 15 ). Dorsum setae present, needlelike. Epigastric area setae uniform, needlelike. Postepigastric area setae present, needlelike. Spinneret scutum with fringe of needlelike setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae ( Fig. 6B View FIGURES 6 ). Colulus present ( Fig. 15F View FIGURES 15 ). LEGS. Without color pattern, femur IV not thickened, same size as femora I–III, patella plus tibia I shorter than carapace, tibia I unmodified, tibia I Emerit’s glands absent, tibia IV specialized setae on ventral apex absent, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent. Leg spines absent ( Figs 4A–D View FIGURES 4 ). Teeth on the superior claws of Tarsi I to IV not examined in detail. Tarsi I to IV without inferior claw. Base of trichobothria (only metatarsus III examined with SEM) longitudinally narrowed, hood covered by numerous low, closely spaced ridges ( Figs 5A View FIGURES 5 , 20L View FIGURES 20 ). Tarsal organ legs I and II with 3 sensilla visible, legs III and IV with 2 sensilla visible ( Figs 4I–L View FIGURES 4 ). GENITALIA. Male: epigastric region with sperm pore small, elliptical, wider than long, rebordered ( Fig. 25H View FIGURES 25 ); furrow without omegashaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical; embolus prolateral excavation absent, embolus tube-shaped; conductor usually present (absent in H. una sp. nov., H. brescoviti sp. nov., H. wangi sp. nov.; Figs 8G View FIGURES 8 , 10H View FIGURES 10 , 39G View FIGURES 39 ), situated prolaterally of embolus ( Figs 5K–L View FIGURES 5 ); trochanter normal size, unmodified; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella shorter than femur, not enlarged, without prolateral row of ridges, setae unmodified; tibia trichobothria not examined; cymbium ovoid in dorsal view, fused with bulb but with clearly defined seam between, plumose setae absent, without stout setae, without distal patch of setae; bulb stout, elongated ( Figs 5I–J View FIGURES 5 ). Female: genitalia consisting of a postepigastric plate ( Figs 5D–F View FIGURES 5 ), a genital duct (GAp in Ott et al. 2019), two lateral apodemes and two uterine sclerites. Anterior uterine sclerite with T-shaped genitalic process. Posterior uterine sclerite lamellar. Genital duct ascending along posterior uterine sclerite. Without a genital pouch or posterior receptaculum ( Fig. 78L View FIGURES 78 ).

Composition. The genus Hexapopha includes 41 species, 35 of which newly described.

Distribution. Species of Hexapopha are currently known only from the Neotropical Region. The most northern records are from Costa Rican species and the southernmost ones are from northern Argentina. The genus is widely distributed in Brazil, being recorded here for the first time in all Brazilian biomes. The Brazilian Amazonia harbors 21 species; Atlantic Forest harbors 11 species; the Pantanal harbors two, while the Pampa harbors just one. Two species are found in the Brazilian Cerrado, where one of them is also found in the Cerrado-Caatinga ecotone. A few species, such as H. numerosa sp. nov., H. platnicki sp. nov., and H. izquierdoi sp. nov., are relatively common in collections, but 21 of the species here recognized, all newly described, are known solely from their type localities. The highest species richness occurs in the Amazon basin, with 22 species. Sympatry is recorded in several areas, such as the Una ecological station (State of Bahia), and Novo Repartimento (State of Pará), each with five species; Juruti and the vicinities of Belém (State of Pará), each with four; Ferreira Penna Scientific Station (eastern Brazilian Amazonia, State of Pará) with three; and Corumbá, in the Brazilian Pantanal (State of Mato Grosso do Sul), with two species ( Maps 1–6 View MAP 1 View MAP 2 View MAP 3 View MAP 4 View MAP 5 View MAP 6 ).

Key to species of Hexapopha View in CoL

1. Males (except H. jimenez View in CoL and H. m-scripta View in CoL , unknown)................................................... 2

- Females (except H. erebai , H. fannesi , H. egua , H. caboquinho , H. ramirezi , H. gunma , H. grismadoi , H. depleta , H. brescoviti , H. ruizi , H. rheimsae , H. itabaiana and H. delta , unknown)...................................... 40

2(1). Chelicerae paturon retromargin with sclerotized projection ( Figs 8D View FIGURES 8 , 10E View FIGURES 10 ).................................... 3

- Chelicerae paturon retromargin without a sclerotized projection............................................ 4

3(2). Endite’s P2 hornlike ( Fig. 8C View FIGURES 8 ).................................................... Hexapopha View in CoL una sp. nov.

- Endite’s P2 lamellar ( Fig. 10C View FIGURES 10 )............................................... Hexapopha brescoviti sp. nov.

4(2). Sclerotized projection in the middle of the sternum present ( Figs 11D View FIGURES 11 , 13B, C View FIGURES 13 )............. Hexapopha peba sp. nov.

- Sclerotized projection in the middle of the sternum absent ( Figs 17D View FIGURES 17 , 18B View FIGURES 18 )................................... 5

5(4). Endite’s P1 long, reaching at least the anterior margin of the sternum ( Figs 14F View FIGURES 14 , 18C View FIGURES 18 , 19F View FIGURES 19 )....................... 6

- Endite’s P1 short, not reaching the anterior margin of the sternum ( Figs 34D View FIGURES 34 , 36C View FIGURES 36 )............................ 12

6(5). Endite’s P1 reaching the middle of the sternum ( Fig. 16A View FIGURES 16 ).......................... Hexapopha harveyi sp. nov.

- Endite’s P1 reaching the anterior margin of the sternum.................................................. 7

7(6). Tip of endite’s P1 folded ventrally ( Figs 18C, D, E View FIGURES 18 )................................. Hexapopha fannesi sp. nov.

- Tip of endite’s P1 not folded ventrally ( Figs 25D, F View FIGURES 25 )..................................................... 8

8(7). Endite’s P1 longitudinally oriented ( Figs 20C View FIGURES 20 , 23B View FIGURES 23 )..................................................... 9

- Endite’s P1 otherwise ( Figs 24D View FIGURES 24 , 26D View FIGURES 26 )............................................................... 10

9(8). Process of the prosoma pedicelar region squared, large ( Fig. 20G View FIGURES 20 )..................... Hexapopha erebai sp. nov.

- Process of the prosoma pedicelar region semicircular, small ( Fig. 23A View FIGURES 23 ).............. Hexapopha periclitata sp. nov.

10(8). Endite’s P1 curvature divergent ( Fig. 25C View FIGURES 25 )......................................... Hexapopha delta sp. nov.

- Endite’s P1 convergent ( Figs 28C View FIGURES 28 , 31B View FIGURES 31 ).............................................................. 11

11(10). Prolateral process of P1 crestlike, with serrated edge ( Fig. 28E View FIGURES 28 )....................... Hexapopha tallitae sp. nov.

- Prolateral process of P1 not crestlike, edge smooth ( Fig. 31B View FIGURES 31 )...................... Hexapopha platnicki sp. nov.

12(5). Sternum median concavity present ( Figs 34B View FIGURES 34 , 36A View FIGURES 36 )..................................................... 13

- Sternum median concavity absent................................................................... 14

13(12). Labium anterior margin anteriorly projecting at middle; endite’s P1 protuding distally ( Fig. 34D View FIGURES 34 )............................................................................................ Hexapopha santosi sp. nov.

- Labium anterior margin not projecting; endite’s P1 subquadrangular ( Fig. 36C View FIGURES 36 )......... Hexapopha rheimsae sp. nov.

14(12). Conductor absent ( Figs 39G–H View FIGURES 39 )................................................. Hexapopha wangi sp. nov.

- Conductor present ( Fig. 41J View FIGURES 41 )....................................................................... 15

15(14). Conductor length half or less the embolus length ( Figs 41J View FIGURES 41 , 43I View FIGURES 43 , 45J View FIGURES 45 )....................................... 16

- Conductor approximately the same length of the embolus ( Figs 52G View FIGURES 52 , 54L View FIGURES 54 ).................................. 18

16(15). Endite’s P1 anteriorly directed, lamellar ( Fig. 41D View FIGURES 41 )................................... Hexapopha ruizi sp. nov.

- Endite’s P1 transversal, not lamellar ( Figs 43E View FIGURES 43 , 45F View FIGURES 45 ).................................................... 17

17(16). Posterior end of carapace angulated in lateral view, abdominal scuta strongly sclerotized ( Fig. 42B View FIGURES 42 )........................................................................................ Hexapopha itabaiana sp. nov.

- Posterior end of carapace nearly straight in lateral view, abdominal scuta weakly sclerotized, inconspicuous ( Fig. 44B View FIGURES 44 ).......................................................................... Hexapopha ramirezi sp. nov.

18(15). Conductor with a proximal subtriangular projection ( Platnick et al. 2014: figs 21, 70, 105)...................... 19

- Conductor without such projection.................................................................. 21

19(18). Endite’s P2 narrow, beak-shaped ( Platnick et al. 2014: fig. 64).... Hexapopha hone Platnick, Berniker & Víquez, 2014 View in CoL

- Endite’s P2 wide, lamellar ( Platnick et al. 2014: figs 10, 98).............................................. 20

20(19). Labium anterior margin anteriorly projecting at middle ( Platnick et al. 2014: fig. 15)................................................................................................ Hexapopha reimoseri ( Fage, 1938) View in CoL

- Labium anterior margin indented at middle ( Platnick et al. 2014: fig. 98)............................................................................................. Hexapopha osa Platnick, Berniker & Víquez, 2014 View in CoL

21(18). Conductor with bifid tip ( Fig. 47J View FIGURES 47 ).............................................. Hexapopha depleta sp. nov.

- Conductor with single tip......................................................................... 22

22(21). Booklung covers large, approximately the width of pedicel opening ( Fig. 48G View FIGURES 48 )........... Hexapopha gunma sp. nov.

- Booklung covers small, narrow, smaller than the width of pedicel opening ( Figs 50G View FIGURES 50 , 53G View FIGURES 53 )..................... 23

23(22). Endite’s P3 present ( Figs 52C View FIGURES 52 , 54E View FIGURES 54 , 57D View FIGURES 57 )............................................................. 24

- Endite’s P3 absent ( Figs 60C View FIGURES 60 , 63C View FIGURES 63 ).................................................................. 26

24(23). Endite’s P3 horn-shaped ( Fig. 52C View FIGURES 52 )......................................... Hexapopha corniculata sp. nov.

- Endite’s P3 laminar ( Figs 54E View FIGURES 54 , 57D View FIGURES 57 )................................................................. 25

25(24). Endite’s P1 horn-shaped ( Figs 54C–E View FIGURES 54 )............................................. Hexapopha egua sp. nov.

- Endite’s P1 laminar ( Figs 57C–E View FIGURES 57 )............................................ Hexapopha izquierdoi sp. nov.

26(23). Endite’s P1 longitudinally oriented, not folded over itself ( Figs 60C View FIGURES 60 , 63C View FIGURES 63 , 66C View FIGURES 66 ).............................. 27

- Endite’s P1 transversally oriented, folded over itself ( Figs 69D View FIGURES 69 , 72E View FIGURES 72 , 75C View FIGURES 75 ).................................. 29

27(26). Endite’s P1 directed anteriorly ( Figs 60C–D View FIGURES 60 ).................................... Hexapopha numerosa sp. nov.

- Endite’s P1 directed posteriorly ( Figs 63C View FIGURES 63 , 66D View FIGURES 66 )....................................................... 28

28(27). Endite’s P2 a large bent plate ( Fig. 63C View FIGURES 63 )......................................... Hexapopha baehrae sp. nov.

- Endite’s P2 a small acute process ( Fig. 66D View FIGURES 66 ).................................... Hexapopha excavata sp. nov.

29(26). Prolateral process of P1 present ( Figs 69D View FIGURES 69 , 72E View FIGURES 72 )....................................................... 30

- Prolateral process of P1 absent..................................................................... 31

30(29). Prolateral process of P1 bent upwards, strongly serrated ( Fig. 69D View FIGURES 69 ).......... Hexapopha brasiliana ( Bristowe, 1938) View in CoL

- Prolateral process of P1 not bent upwards, slightly serrated ( Fig. 72E View FIGURES 72 ).................. Hexapopha sorkini sp. nov.

31(29). Endite’s P1 and mp adjacent in ventral view, separated by less than P1 width ( Figs 75C View FIGURES 75 , 78D View FIGURES 78 , 81D View FIGURES 81 , 84D View FIGURES 84 ).......... 32

- Endite’s P1 separated from mp by more than its width ( Figs 87C View FIGURES 87 , 89D View FIGURES 89 )..................................... 35

32(31). Endite’s P2 laminar ( Fig. 75C View FIGURES 75 ).................................................. Hexapopha ubicki sp. nov.

- Endite’s P2 not laminar, tip narrow ( Figs 78D View FIGURES 78 , 81D View FIGURES 81 ).................................................... 33

33(32). Conductor tip narrow, acute ( Fig. 78G View FIGURES 78 )....................................... Hexapopha quadraginta sp. nov.

- Conductor tip wide ( Figs 81H View FIGURES 81 , 84G View FIGURES 84 )................................................................. 34

34(33). Conductor longer than embolus ( Figs 81H–I View FIGURES 81 )....................................... Hexapopha ilhoa sp. nov.

- Conductor as long as the embolus ( Figs 84G–H View FIGURES 84 )................................ Hexapopha marajoara sp. nov.

35(31). Endite’s P1 strongly folded over itself, tip oriented anteriorly or medially ( Figs 87C View FIGURES 87 , 89D View FIGURES 89 , 91D View FIGURES 91 )................. 36

- Endite’s P1 slightly folded over itself, tip oriented posteriorly ( Figs 92D View FIGURES 92 , 95F View FIGURES 95 )............................... 38

36(35). Labium width less than two times its lenght ( Fig. 87C View FIGURES 87 )............................... Hexapopha kropfi sp. nov.

- Labium width more than two times its length ( Figs 89D View FIGURES 89 , 91D View FIGURES 91 )............................................ 37

37(36). Tip of endite’s P1 oriented medially, endite’s median projection with anterior margin serrated, labium anterior margin not projecting at middle ( Fig. 89D View FIGURES 89 )............................................. Hexapopha caboquinho sp. nov.

- Tip of endite’s P1 oriented anteriorly, median projection with anterior margin smooth, labium anterior margin projecting at middle ( Figs 91D–E View FIGURES 91 ).................................................... Hexapopha grismadoi sp. nov.

38(35). Endite’s P1 abruptly narrowed, tip narrow ( Figs 92D,F View FIGURES 92 )............................ Hexapopha pithecia sp. nov.

- Endite’s P1 club-shaped, tip blunt ( Figs 97C–E View FIGURES 97 , 100B, C View FIGURES 100 )................................................ 39

39(38). Endite’s P2 directed posteriorly, not protruded ( Figs 97C,D View FIGURES 97 )....................... Hexapopha manauara sp. nov.

- Endite’s P2 directed ventrally, protruded ( Figs 100C,D View FIGURES 100 ).......................... Hexapopha pantaneira sp. nov.

40(1). Postepigastric scape present ( Figs 13J View FIGURES 13 , 16I View FIGURES 16 , 23I View FIGURES 23 , 39J View FIGURES 39 ).................................................... 41

- Postepigastric scape absent ( Figs 52K View FIGURES 52 , 60J View FIGURES 60 , 66J View FIGURES 66 , 84I View FIGURES 84 ).................................................... 59

41(40). Postepigastric scape not fused to posterior postepigastric plate ( Figs 12G View FIGURES 12 , 13J View FIGURES 13 , 15G View FIGURES 15 , 16H View FIGURES 16 , 22G View FIGURES 22 , 23I View FIGURES 23 ).............. 42

- Postepigastric scape fused to postepigastric plate ( Figs 56G View FIGURES 56 , 57J View FIGURES 57 , 68G View FIGURES 68 , 69I View FIGURES 69 ).................................. 44

42(41). Postepigastric scape tube-shaped ( Fig. 13J View FIGURES 13 )......................................... Hexapopha peba sp. nov.

- Postepigastric scape tongue-shaped ( Figs 16I View FIGURES 16 , 23I View FIGURES 23 )..................................................... 43

43(42). Postepigastric scape near the spinnerets ( Fig. 16H View FIGURES 16 )................................ Hexapopha harveyi sp. nov.

- Postepigastric scape in the middle of postepigastric scutum ( Figs 22F View FIGURES 22 , 23I View FIGURES 23 )........... Hexapopha periclitata sp. nov.

44(41). Postepigastric plate narrow, distinctly wider than long ( Figs 33H View FIGURES 33 , 39J View FIGURES 39 , 78J View FIGURES 78 , 87J View FIGURES 87 ).............................. 45

- Postepigastric plate broad, longer than wider or nearly as long as wide ( Figs 71H View FIGURES 71 , 69I View FIGURES 69 )......................... 50

45(44). Booklung covers large, approximately the width of pedicel opening diameter ( Fig. 38G View FIGURES 38 ).... Hexapopha wangi sp. nov.

- Booklung covers small, very narrow, much smaller than the width of pedicel opening diameter ( Figs 77F View FIGURES 77 , 86G View FIGURES 86 , 56F View FIGURES 56 )... .............................................................................................. 46

46(45). Posterior margin of postepigastric plate semicircular ( Figs 77G View FIGURES 77 , 87J View FIGURES 87 )....................................... 47

- Posterior margin of postepigastric plate triangular ( Figs 33G View FIGURES 33 , 56G View FIGURES 56 , 74G View FIGURES 74 ).................................... 48

47(46). Lateral arms of the T-shaped genitalic process thin; duct narrow, multifolded ( Figs 77G–H View FIGURES 77 , 78L View FIGURES 78 . ........................................................................................ Hexapopha quadraginta sp. nov.

- Lateral arms of the T-shaped genitalic process thick; duct wide, with only three folds ( Figs 86G–H View FIGURES 86 , 87L View FIGURES 87 )....................................................................................... Hexapopha kropfi sp. nov.

48(46). Posterior margin of postepigastric plate elevated in lateral view ( Fig. 33H View FIGURES 33 )............. Hexapopha santosi sp. nov.

- Posterior margin of postepigastric plate not elevated.................................................... 49

49(48). Posterior margin of postepigastric plate highly sclerotized ( Figs 56G–H View FIGURES 56 )............. Hexapopha izquierdoi sp. nov.

- Posterior margin of postepigastric plate slightly sclerotized ( Figs 74G–H View FIGURES 74 )................ Hexapopha ubicki sp. nov.

50(44). Postepigastric scape trapezoid, truncated, with sinuous posterior margin ( Fig. 71H View FIGURES 71 )....... Hexapopha sorkini sp. nov.

- Postepigastric scape U- or V-shaped, poited........................................................... 51

51(50). Postepigastric scape U-shaped ( Figs 8J View FIGURES 8 , 62G–H View FIGURES 62 , 69I View FIGURES 69 ; Platnick et al., 2014, figs 84–86)......................... 52

- Postepigastric scape V-shaped ( Figs 80G View FIGURES 80 , 93G View FIGURES 93 , 99G View FIGURES 99 , 96G View FIGURES 96 , 101G View FIGURES 101 ).......................................... 55

52(51). Genital duct wide, almost reaching the posterior portion of the postepigastric plate ( Figs 7G–H View FIGURES 7 )............................................................................................... Hexapopha View in CoL una sp. nov.

- Genital duct narrow, situated on the anterior portion of the postepigastric plate ( Figs 68G–H View FIGURES 68 , 62G–H View FIGURES 62 ; Platnick et al., 2014, figs 85–86)..................................................................................... 53

53(52). Arms of T-shaped genitalic process straight ( Fig. 69K View FIGURES 69 ).................... Hexapopha brasiliana ( Bristowe, 1938) View in CoL

- Arms of T-shaped genitalic process curved............................................................ 54

54(53). Arms of T-shaped genitalic process procurved ( Fig. 62K View FIGURES 62 )........................... Hexapopha baehrae sp. nov.

- Arms of T-shaped genitalic process recurved ( Platnick et al., 2014, fig. 86).......................................................................................... Hexapopha hone Platnick, Berniker & Víquez, 2014 View in CoL

55(51). Lateral margins of the postepigastric plate excavated ( Fig. 94E View FIGURES 94 )...................... Hexapopha pithecia sp. nov.

- Lateral margins of the postepigastric plate otherwise.................................................... 56

56(55). Posterior margin of postepigastric plate rounded ( Figs 80G–H View FIGURES 80 )......................... Hexapopha ilhoa sp. nov.

- Posterior margin of postepigastric plate angular........................................................ 57

57(56). Posterior margin of the postepigastric plate forming an angle of 120º ( Figs 101G–H View FIGURES 101 ).............................................................................................. Hexapopha m-scripta ( Birabén, 1954) View in CoL

- Posterior margin of the postepigastric plate forming a smaller angle........................................ 58

58(57). Lateral apodemes strongly sclerotized, curved ( Figs 99F–H View FIGURES 99 )....................... Hexapopha pantaneira sp. nov.

- Lateral apodemes weakly sclerotized, straight ( Fig. 96F View FIGURES 96 ).......................... Hexapopha manauara sp. nov.

59(40). Postepigastric plate broad, longer than wider or nearly as long as wide, tongue-shaped ( Figs 65F–H View FIGURES 65 , 27F–H View FIGURES 27 , 30F–H View FIGURES 30 )... .............................................................................................. 60

- Postepigastric plate narrow, distinctly wider than long, lip-shaped ( Figs 51F–H View FIGURES 51 ; 83F–H View FIGURES 83 )....................... 62

60(59). Postepigastric plate excavated, concave ( Fig. 66J View FIGURES 66 )................................ Hexapopha excavata sp. nov.

- Postepigastric plate not excavated................................................................... 61

61(60). Margins of the postepigastric plate strongly slerotized ( Figs 27F–H View FIGURES 27 ).................. Hexapopha tallitae sp. nov.

- Margins of the postepigastric plate not strongly slerotized ( Figs 30F–H View FIGURES 30 ).............. Hexapopha platnicki sp. nov.

62(59). Postepigastric plate V-shaped ( Figs 51G–H View FIGURES 51 )................................... Hexapopha corniculata sp. nov.

- Postepigastric plate U-shaped ( Figs 51G–H View FIGURES 51 , 59G–H View FIGURES 59 ; Platnick et al., 2014, figs 59–60, 94–95, 120–121)........... 63

63(62). Copulatory opening positioned on postepigastric plate ventral surface ( Figs 84J View FIGURES 84 , 60L View FIGURES 60 )......................... 64

- Copulatory opening internal, positioned under the epigastric plate (not visible in SEM)........................ 65

64(63). Lateral apodemes strongly sclerotized, curved ( Figs 83G–H View FIGURES 83 )...................... Hexapopha marajoara sp. nov.

- Lateral apodemes weakly sclerotized, straight ( Figs 59G–H View FIGURES 59 )........................ Hexapopha numerosa sp. nov.

65(63). Postepigastric plate narrow ( Platnick et al., 2014, figs 58–60)................... Hexapopha reimoseri ( Fage, 1938) View in CoL

- Postepigastric plate wide.......................................................................... 66

66(65). Arms of T-shaped genitalic process procurved ( Platnick et al. 2014: figs 94–95).................................................................................... Hexapopha jimenez Platnick, Berniker & Víquez, 2014 View in CoL

- Arms of T-shaped genitalic process straight ( Platnick et al. 2014: figs 120–121)....................................................................................... Hexapopha osa Platnick, Berniker & Víquez, 2014 View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Loc

Hexapopha Platnick, Berniker & Víquez, 2014

Feitosa, Níthomas M., Ott, Ricardo & Bonaldo, Alexandre B. 2023
2023
Loc

Hexapopha Platnick, Berniker & Víquez, 2014: 4

Platnick, N. I. & Berniker, L. & Viquez, C. 2014: 4
2014
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