Guadana, Rheims, 2010

Rheims, Cristina A., 2021, The Neotropical genera Guadana Rheims, 2010 and Sparianthina Banks, 1929 (Araneae: Sparassidae: Heteropodinae), Zootaxa 5061 (3), pp. 401-431 : 402-403

Identification key for all known species of Guadana

1 Males .............................................................................................. 2

- Females........................................................................................... 11

2(1) Embolus gently curved retrolaterally, without basal projection ( Figs 74−76 )....................................... 3

- Embolus strongly curved prolaterally, with basal projection ( Figs 67−73 )......................................... 5

3(2) DTA with ridged margin and no keels ( Figs 62−63 ).......................................................... 4

- DTA with smooth margins and long ventral keel ( Fig. 64 , Rheims 2010a: fig. 29)........................ G. tambopata

4(3) Ridged margin long, with several ridges (more than 10) distributed throughout more than half DTA length ( Fig. 63 , Rheims 2010a: fig. 24); dRTA distally bifid ( Rheims 2010a: fig. 25)............................................. G. quillu

- Ridged margin short, with few ridges (4 or 5) distributed along less than ¼ DTA length ( Fig. 62 , Rheims 2010a: fig. 22); dRTA distally trifid (best seen in retrolateral view) ( Rheims 2010a: fig. 23).................................. G. panguana

5(2) Conductor distally widened ( Fig. 32 , Rheims 2010a: fig. 34)................................................... 6

- Conductor with the same width throughout its entire length ( Figs 2 , 18 , 44 )....................................... 7

6(5) dRTA bearing two small, thorn-like projections at tip ( Figs 32 , 41 ); embolus with basal projection membranous at center ( Figs 32 , 41 , 72 ).............................................................................. G. ucayali sp. n.

- dRTA bearing single hook-like projection at tip ( Rheims 2010a: fig. 34); embolus with basal projection sclerotized ( Fig. 76 , Rheims 2010a: fig. 34).......................................................................... G. urucu

7(5) Embolus with basal projection single ( Figs 67−69, 71−73 ).................................................... 8

- Embolus with basal projection bifid with one branch blunt, with long prolateral fold and another distally widened, with pointed tip ( Figs 44 , 53 , 70 ).................................................................. G. muirapinima sp. n.

8(7) Embolus tip with sub-distal keel ( Figs 67−68 )............................................................... 9

- Embolus tip with subdistal projection ( Figs 69, 71 ).......................................................... 10

9(8) vRTA and dRTA similar sized in retrolateral view ( Figs 19 , 28 ); embolus with basal projection with jagged margin ( Figs 18 , 27 , 68 ).................................................................................... G. arawak sp. n.

- vRTA smaller than dRTA in retrolateral view ( Fig. 2−3 ); embolus with basal projection with smooth margin ( Figs 2 , 11 , 67 )..................................................................................... G. alpahuayo sp. n.

10(8) dRTA slender, hook-shaped and vRTA triangular (in ventral view) ( Rheims 2010a: fig. 20); embolus with basal projection wider than long ( Fig. 71 , Rheims 2010a: fig. 20).......................................................... G. neblina

- dRTA wide, medially bent at roughly 90° and vRTA (in retrolateral view) squared (in ventral view) ( Rheims 2010a: figs 13−14); embolus with basal projection longer than wide ( Fig. 69 , Rheims 2010a: fig. 13)......................... G. manauara

11(1) MS without epigynal pockets ( Rheims 2010a: figs 26, 31).................................................... 12

- MS bearing medial or anterior epigynal pockets ( Figs 4 , 15 , 29 , Rheims 2010a: 17)................................ 13

12(11) Epigynal ledges running posteriorly to half the epigyne length, then curving laterally; MS with median U-shaped flaps ( Rheims 2010a: fig. 31); internal ducts strongly convoluted close to FD ( Rheims 2010a: fig. 32)................... G. tambopata

- Epigynal ledges running posteriorly and curving anteriorly close to posterior margin; MS smooth ( Rheims 2010a: fig. 26); internal ducts slightly widened close to FD ( Rheims 2010a: fig. 29)....................................... G. quillu

13(11) MS with paired epigynal pockets ( Figs 4 , 15 , Rheims 2010a: fig. 17)........................................... 14

- MS with single epigynal pocket ( Figs 29 , 46 , Rheims 2010a: fig. 36)........................................... 16

14(13) MS with epigynal pockets connected medially, opening anteriorly ( Fig. 4 ; Rheims 2010a: fig. 17); internal ducts running medially from CO, then posteriorly to SP ( Fig. 5 ; Rheims 2010a: fig. 19)........................................... 15

- MS with epigynal pockets not connected medially, opening posteriorly ( Figs 15 , 24 ); internal ducts running anteriorly from CO then posteriorly to SP ( Figs 16 , 25 )........................................................ G. amendoim sp. n.

15(14) MS roughly rectangular, slightly wider anteriorly; epigynal pockets roughly two times wider than long ( Figs 4 , 13 )............................................................................................ G. alpahuayo sp. n.

- MS roughly trapezoid, widest posteriorly; epigynal pockets roughly four times wider than long ( Rheims 2010a: fig. 17)............................................................................................. G. manauara

16(13) MS with epigynal pockets as wide as long or slightly longer than wide ( Figs 29 , 38 ; Rheims 2010a: fig. 36)............ 17

- MS with epigynal pockets much wider than long ( Figs 46 , 55 )................................ G. muirapinima sp. n.

17(16) MS at least three times wider anteriorly with curved epigynal ledges ( Rheims 2010a: 36); internal ducts running mediad, then posteriad, then laterad from CO to slightly convoluted SP ( Rheims 2010a: fig. 37)........................... G. urucu

- MS one and a half times wider anteriorly without curved epigynal ledges ( Figs 29 , 38 ); internal ducts running sinuously posteriad towards U-shaped SP ( Figs 30 , 39 )........................................................ G. mapia sp. n.

Figures

FIGURES 67−76. Male, left palp, embolus, ventral, detail. 67 Guadana alpahuayo sp. n., 68 Guadana arawak sp. n., 69 Guadana manauara, 70 Guadana muirapinima sp. n., 71 Guadana neblina, 72 Guadana panguana, 73 Guadana quillu, 74 Guadana tambopata, 75 Guadana ucayali sp. n., 76 Guadana urucu. Scale lines: 1 mm. bp—basal projection of the embolus; sk—subdistal keel.

FIGURES 57−66. Male, left palp, DTA, ventral, detail. 57 Guadana alpahuayo sp. n., 58 Guadana arawak sp. n., 59 Guadana manauara, 60 Guadana muirapinima sp. n., 61 Guadana neblina, 62 Guadana panguana, 63 Guadana quillu, 64 Guadana tambopata, 65 Guadana ucayali sp. n., 66 Guadana urucu. Scale lines: 1 mm. rm—ridged margin; vk—ventral keel.

FIGURES 29−33. 29−30 Guadana mapia sp. n. female (IBSP 8825) (29 epigyne ventral, 30 vulva dorsal). 31−33 Guadana ucayali sp. n. male (MUSM), left palp (31 prolateral, 32 ventral, 33 retrolateral). Scale lines: 1 mm. bp—basal projection of the embolus; C—conductor; CO—copulatory opening; dRTA—dorsal branch of RTA; DTA—dorsal tegular apophysis; E—embo- lus; ep—epigynal pocket; FD—fertilization duct; LL—lateral lobe; MS—median septum; SP—spermathecae; vRTA—ventral branch of RTA; VTA—ventral tibial apophysis.

FIGURES 1−5. Guadana alpahuayo sp. n. 1−3 male (holotype), left palp (1 prolateral, 2 ventral, 3 retrolateral); 4−5 female (paratype, IBSP 165059) (4 epigyne ventral, 5 vulva dorsal). Scale lines: 1 mm. bp—basal projection of the embolus; C—con- ductor; CO—copulatory opening; dRTA—dorsal branch of RTA; DTA—dorsal tegular apophysis; E—embolus; ep—epigynal pocket; FD—fertilization duct; LL—lateral lobe; MS—median septum; sc—scape-like projection; SP—spermathecae; vRTA— ventral branch of RTA; VTA—ventral tibial apophysis.

FIGURES 15−19. 15−16 Guadana amendoim sp. n. female (IBSP 135243) (15 epigyne ventral, 16 vulva dorsal). 17−19 Guadana arawak sp. n. male (MNHN), left palp (17 prolateral, 18 ventral, 19 retrolateral). Scale lines: 1 mm. bp—basal projection of the embolus; C—conductor; CO—copulatory opening; dRTA—dorsal branch of RTA; DTA—dorsal tegular apophysis; Eembolus; ep—epigynal pocket; FD—fertilization duct; mab—muscle attachment bands; mp—mating plug; SP—spermathecae; vRTA—ventral branch of RTA; VTA—ventral tibial apophysis.

FIGURES 43−47. Guadana muirapinima sp. n. 43−45 male (MPEG 30837), left palp (43 prolateral, 44 ventral, 45 retrola- teral); 46−47 female (MPEG 30677) (46 epigyne ventral, 47 vulva dorsal). Scale lines: 1 mm. C—conductor; CO—copulatory opening; dRTA—dorsal branch of RTA; DTA—dorsal tegular apophysis; E—embolus; ep—epigynal pocket; FD—fertiliza- tion duct; LL—lateral lobe; MS—median septum; SP—spermathecae; tp—tegular projection; vRTA—ventral branch of RTA; VTA—ventral tibial apohysis.

FIGURES 38−42. 38−39 Guadana mapia sp. n. female (IBSP 8825) (38 epigyne ventral, 39 vulva dorsal). Guadana ucayali sp. n. male (MUSM), left palp (40 prolateral, 41 ventral, 42 retrolateral). Scale lines: 1 mm.

FIGURES 52−56. Guadana muirapinima sp. n. 52−54 male (MPEG 30837), left palp (52 prolateral, 53 ventral, 54 retrola- teral); 55−56 female (MPEG 30677) (55 epigyne ventral, 56 vulva dorsal). Scale lines: 1 mm.

FIGURES 24−28. 24−25 Guadana amendoim sp. n. female (IBSP 135243) (24 epigyne ventral, 25 vulva dorsal). 26−28 Guadana arawak sp. n. male (MNHN), left palp (26 prolateral, 27 ventral, 28 retrolateral). Scale lines: 1 mm.

FIGURES 10−14. Guadana alpahuayo sp. n. 10−12 male (MUSM), left palp (10 prolateral, 11 ventral, 12 retrolateral); 13−14 female (IBSP 165059) (13 epigyne ventral, 14 vulva dorsal). Scale lines: 1 mm.