Nyetnops Platnick & Lise, 2007

Villarreal-Blanco, Eduardo, Martínez, Leonel & Eyes-Escalante, Melisa, 2024, Update in the Peruvian Caponiidae: New records and new species of Nyetnops Platnick & Lise, 2007 (Araneae: Caponiidae), European Journal of Taxonomy 932, pp. 204-224 : 221-222

Key to the males of Nyetnops Platnick & Lise, 2007 updated from Sánchez-Ruiz et al. (2020)

1. Without remarkable dorsal abdominal pattern ( Sánchez-Ruiz et al. 2020: figs 1a, g, 4a, g) ........... 2

– With remarkable dorsal abdominal pattern of chevron stripes ( Fig. 9A ) .................................................................... Nyetnops josei Villarreal & Martínez sp. nov.

2. Length of copulatory bulb (tegulum +embolus) just two times or less the palpal tibia length ( Fig. 4A–B Sánchez-Ruiz et al. 2020: figs 1b–d, 4b–c) ................................................................... 3

– Length of copulatory bulb (tegulum+embolus) more than 2.2 × as long as palpal tibia ( Sánchez-Ruiz et al. 2020: figs 8b–c; 9b–c) ..................................................................................................... 5

3. Tegulum apical section not swollen on median portion, same width as tegulum basal section ( Figs 4A–B , 5A, G ) ..................................................... N. alexanderi Villarreal & Martínez sp. nov.

– Tegulum apical section swollen on median portion ( Sánchez-Ruiz et al. 2020: fig. 7a–f) .............. 4

4. Tegulum apical section swollen on median portion, width similar to palpal tibia ( Sánchez-Ruiz et al. 2020: figs 4b–c, 8h), embolus tip with very long rooster’s crest like projections ( Sánchez-Ruiz et al. 2020: fig. 7a–f) .......................................... N. naylienae Sánchez-Ruiz, Brescovit & Bonaldo, 2020

– Tegulum apical section weakly swollen on median portion, narrower than palpal tibia width ( Sánchez-Ruiz et al. 2020: fig. 1b–c), embolus tip beveled with short projections ( Sánchez-Ruiz et al. 2020: fig. 3g –i ...................................................................... N. guarani Platnick & Lise, 2007

5. Mid of palpal tibia strongly swollen, 1.8 × as wide as proximal and distal portions ( Sánchez-Ruiz et al. 2020: fig. 8b–c); copulatory bulb slender, weakly swollen on tegulum apical section, only a half palpal tibia width ( Sánchez-Ruiz et al. 2020: fig. 8b–c) ............................................................. ..................................................................... N. lachonta Sánchez-Ruiz, Brescovit & Bonaldo, 2020

– Mid of palpal tibia weakly swollen, only 1.2 × as wide as proximal and distal portions ( Fig. 6A–B ; Sánchez-Ruiz et al. 2020: fig. 9b–c) ................................................................................................. 6

6. Copulatory bulb thick, slightly swollen at tegulum apical section and narrow at basal section ( Sánchez-Ruiz et al. 2020: figs 8i, 9b–c) ........ N. buruti Sánchez-Ruiz, Brescovit & Bonaldo, 2020

– Copulatory bulb very slender, not swollen at tegulum apical section and slightly swollen at basal section ( Fig. 6A–B ) ................................................. Nyetnops madre Villarreal & Martínez sp. nov.

Figures

Fig. 9. Nyetnops josei Villarreal & Martínez sp. nov., ♂, holotype (MUSM–ENT 0515886). A. Habitus, dorsal view. B. Habitus, ventral view. C. Prosoma, dorsal view. D. Prosoma, ventral view. Scale bars: A–B= 1 mm; C–D =0.5 mm.

Fig. 4. Nyetnops alexanderi Villarreal & Martínez sp. nov. A–B. ♂, holotype (MUSM–ENT 0506888). C–D. ♀, paratype (MUSM–ENT 0506887). A. Left palp, prolateral view. B. Left palp, retrolateral view. C. External genitalia, ventral view. D. Internal genitalia, dorsal view. Scale bars=0.5 mm.

Fig. 5. Nyetnops alexanderi Villarreal & Martínez sp. nov., ♂ (MUSM–ENT 0506895). A. Copulatory bulb, retrolateral view. B, D. Tip of the embolus, retrolateral view. C, E. Copulatory bulb, dorsal view. F. Tip of the embolus, proventral view. G. Copulatory bulb, prolateral view. H. Tip of the embolus, prolateral view. Scale bars: A, C, E, G =0.1 mm; B, D, F, H= 0.01 mm.

Fig. 6. Nyetnops madre Villarreal & Martínez sp. nov. A–B, E, G. ♂, holotype (MUSM–ENT 0503213). C–D, F, H. ♀, paratype (MUSM–ENT 0503206). A–B. Habitus, dorsal view. C–D. Habitus, ventral view. E–F. Prosoma, dorsal view. G–H. Prosoma, ventral view. Scale bars =1 mm.