Tekellina Levi, 1957

Estol, Narelle, Valiati, Victor Hugo, Brescovit, Antonio D. & Rodrigues, Everton Nei Lopes, 2024, On the Neotropical species of the spider genus Tekellina Levi, 1957 (Arachnida: Araneae: Synotaxidae), European Journal of Taxonomy 943, pp. 154-178 : 157-158

Key to the Neotropical species of Tekellina Levi, 1957

1. Males (those of Tekellina miudinha Rodrigues & Estol sp. nov. unknown) .................................... 2

– Females ............................................................................................................................................. 9

2. Paracymbium retrolaterally very prominent in ventral view, thumb-shaped ( Figs 2A, G, J , 6D ) .... 3

– Paracymbium not thumb-shaped ( Figs 2D , 6A ) or not enlarged retrolaterally ( Fig. 1D ) ................ 5

3. Mesal arm of conductor medially positioned ................................................................................... 4

– Mesal arm of conductor apically positioned ..................................................................................... 7

4. Mesal arm of conductor coiled upwards ( Fig. 2G ) ........ Tekellina minor Marques & Buckup, 1993

– Mesal arm of conductor hook shaped ( Fig. 6D ) ....................... T. miuda Rodrigues & Estol sp. nov.

5. Coiled mesal arm ( Fig. 2D ) .............................................................................................................. 8

– Straight mesal arm ( Fig. 6A ) ............................................................................................................ 6

6. Mesal arm with sharp apex ( Fig. 6A ) ............................... T. picurrucha Rodrigues & Estol sp. nov.

– Mesal arm with blunt apex ...................................... T. araucana Marusik, Eskov & Ramirez, 2022

7. Long terminal claw, exceeding half of the paracymbium and mesal arm not coiled ( Fig. 2A ) .......... ....................................................................................................... T. bella Marques & Buckup, 1993

– Short terminal claw, not exceeding half of the paracymbium and mesal claw coiled inwards ( Fig. 2J ) ..................................................................................... T. guaiba Marques & Buckup, 1993

8. Stem of conductor developed ( Fig. 5C, D ) .................................. T. crica Marques & Buckup, 1993

– Stem of conductor not developed (see Levi 1957: figs 7–8) ........................ T. archboldi Levi, 1957

9. Epigynum with arched copulatory opening ( Figs 1G , 2C ) ............................................................. 10

– Epigynum smaller and straighten copulatory opening ( Fig. 6C ) .................................................... 12

10. Receptacles ½ distant from each other ( Fig. 2F ) ............................................................................ 14

– Receptacles ⅓ closer to each other ..................................................................................................11

11. Fertilization ducts close together ( Figs 2F , 3C–D ) ...................... T. crica Marques & Buckup, 1993

– Fertilization ducts far from each other ..................... T. araucana Marusik, Eskov & Ramirez, 2022

12. Abdomen with white pigment ( Fig. 8J ) .......................................................................................... 13

– Abdomen yellowish without white pigment ( Fig. 9A–C ) ............ T. bella Marques & Buckup, 1993

13. Light eyes (almost transparent) with AME darker, rounder receptacles (see Levi, 1957, Figs 11 – 12) ................................................................................................................. T. archboldi Levi, 1957

– Light brown eyes with AME darker, oval receptacles ( Figs 8J–L , 4C–D , 2L ) .................................. ................................................................................................... T. guaiba Marques & Buckup, 1993

14. Copulatory ducts long with more than three turns surrounding receptacle ( Figs 2F , 6C, F–G ) ..... 15

– Copulatory ducts with three turns surrounding receptacle ( Fig. 2I ) ................................................... ..................................................................................................... T. minor Marques & Buckup, 1993

15. Small copulatory opening ( Fig. 6C ) ............................................................................................... 16

– Large copulatory opening ( Fig. 8F ) ......................................... T. miuda Rodrigues & Estol sp. nov.

16. Round receptacles with a loop at the tip ........................... T. picurrucha Rodrigues & Estol sp. nov.

– Funnel-shaped receptacles distant between each other ....... T. miudinha Rodrigues & Estol sp. nov.

Figures

Fig. 2. A–C. Tekellina bella Marques & Buckup, 1993 (MCN 22170). A. ♂, palp, ventral view. B. ♂, palp, retrolateral view. C. Type (MPEG 35551), epigynum, ventral view. D–F. T. crica Marques & Buckup, 1993. D. Holotype, ♂ (INPA) palp, ventral view. E. Holotype, ♂ (INPA), palp, retrolateral view. F. Paratype, ♀ (MCN 22090), epigynum, ventral view. G–I. T. minor Marques & Buckup, 1993. G. ♂ (MCN 40893), palp, ventral view. H. ♂ (MCN 40893), palp, retrolateral view. I. ♀ (MCN 48868), epigynum, ventral view. J–L. T. guaiba Marques & Buckup, 1993 (MCN 41624). J. ♂, palp, ventral view. K. ♂, palp, retrolateral view. L. Epigynum, ventral view. Scale bars = 0.25 mm. Abbreviations: see Material and methods.

Fig. 6. A–C. Tekellina picurrucha Rodrigues & Estol sp. nov., ♂ (MCN 31476) and ♀ (IBSP 50834). A. Male palp, ventral view. B. ♂, palp, retrolateral view. C. ♀, epigynum, ventral view. D–E. T. miuda Rodrigues & Estol sp. nov., ♂ (MCN 48872) and ♀ (MCN 48871). D. ♂, palp, ventral view. E. ♂, palp, retrolateral view. F. ♀, epigynum, ventral view. G. T. miudinha Rodrigues & Estol sp. nov., ♀, holotype (MCN 48870), epigynum, ventral view. Scale bars = 0.25 mm. Abbreviations: see Material and methods.

Fig. 1. Tekellina archboldi Levi, 1957. A. ♂, habitus, dorsal view. B. ♂, habitus, lateral view. C. ♀, habitus, dorsal view. D. ♂, palp, ventral view. E. ♂, palp, retrolateral view. F. ♀, clarified epigynum, ventral view. G. ♀, epigynum, dorsal view. Images: Fernando Álvarez Padilha (UNAM, Mexico). Available from http://unamfcaracnolab.com [accessed 14 Jun. 2024].

Fig. 5. A–B. Tekellina bella Marques & Buckup, 1993, ♂, palp. A. Ventral view. B. Antero-lateral view. C–E. Tekellina crica Marques & Buckup, 1993, ♂. C–D. Palp. C. Ventral view. D. Antero-lateral view. E. Chelicera. F. Tarsal claws. Scale bars: A–E = 100 µm; F = 20 µm. Abbreviations: see Material and methods.

Fig. 3. A–B. Tekellina bella Marques & Buckup, 1993. A. ♀ (MCN 22170), clarified epigynum, dorsal view. B. ♂ (MCN 22170), left palp, ventral view. C–E. T. crica Marques & Buckup, 1993. C. ♀ (IBSP 12580), epigynum, ventral view. D. ♀ (IBSP 12580), clarified epigynum, dorsal view. E. ♂ (MCN 44493), palp, ventral view. Scale bars = 0.25 mm. Abbreviations: see Material and methods.

Fig. 8. A–C. Tekellina bella Marques & Buckup, 1993. A. ♂ (MCN 22170), habitus, dorsal view. B. ♂ (MCN 22170), habitus, lateral view. C. ♀ (MCN 22170), habitus, dorsal view. D–F. T. crica Marques & Buckup, 1993. D. ♂ (MPEG 35550), male habitus, dorsal view E. ♂ (MPEG 35550), habitus, lateral view. F. ♀ (MPEG 35550), habitus, dorsal view. G–I. T. minor Marques & Buckup, 1993. G. ♂ (MCN 41626), habitus, dorsal view. H. ♂ (MCN 41626), habitus, lateral view. I. ♀ (MCN 48858), habitus, dorsal view. J–L. T. guaiba Marques & Buckup, 1993. J. ♂ (MCN 26251), habitus, dorsal view. K. ♂ (MCN 26251), habitus, lateral view. L. ♀ (MCN 26251), habitus, dorsal view. Scale bars = 0.5 mm.

Fig. 9. A–C. Tekellina picurrucha Rodrigues & Estol sp. nov. A. ♂ (MCN 31476), habitus, dorsal view. B. ♂ (MCN 31476), habitus, lateral view. C. ♀ (IBSP 50834), habitus, dorsal view. D–F. T. miuda Rodrigues & Estol sp. nov. D. ♂ (MCN 48872), habitus, dorsal view. E. ♂ (MCN 48872), habitus, lateral view. F. ♀ (MCN 48871), habitus, dorsal view. G–H. T. miudinha Rodrigues & Estol sp. nov. G. ♀, holotype (MCN 48870), habitus, dorsal view. H. ♀, holotype (MCN 48870), habitus, lateral view. Scale bars = 0.5 mm.

Fig. 11. Distribution map with new records of Tekellina bella Marques & Buckup, 1993, T. crica Marques & Buckup, 1993, T. guaiba Marques & Buckup, 1993 and T. minor Marques & Buckup, 1993.

Fig. 4. A–B. Tekellina minor Marques & Buckup, 1993. A. ♀ (MCN 40896), clarified epigynum, dorsal view. B. ♂ (IBSP 177), palp, ventral view. C–E. T. guaiba Marques & Buckup, 1993. C. ♀ (MCN 26251), epigynum, ventral view. D. ♀ (MCN 26251), clarified epigynum, dorsal view. E. ♂, palp, ventral view. Scale bars: 0.25 mm. Abbreviations: see Material and methods.