Nyetnops Platnick & Lise, 2007

Sánchez-Ruiz, Alexander, Brescovit, Antonio D. & Bonaldo, Alexandre B., 2020, Revision of the spider genus Nyetnops Platnick & Lise (Araneae: Caponiidae) with proposition of the new genus Nopsma, from Central and South America, Zootaxa 4751 (3), pp. 461-486 : 474

Key for the species of Nyetnops Platnick & Lise (males only)

1. Length of copulatory bulb (tegulum + embolus) just two times or less the palpal tibia length ( Figs 1 B–D; 4B–C).......... 2

- Length of copulatory bulb (tegulum + embolus) 2.7 or three times the palpal tibia length ( Figs 8 B–C; 9B–C)............. 3

2. Tegulum apical section swollen on median portion, width similar to palpal tibia ( Figs 4 B–C; 8H), embolus tip with very long rooster’s crest like projections ( Fig. 7 A–F)................................................... N. naylienae n. sp.

- Tegulum apical section weakly swollen on median portion, narrower than palpal tibia width ( Fig. 1 B–C), embolus tip beveled with short projections ( Fig. 3 G–I)................................................................ N. guarani

3. Mid of palpal tibia strongly swollen, 1.8 times wider than proximal and distal portions ( Fig. 8 B–C); copulatory bulb slender, weakly swollen on tegulum apical section, only a half palpal tibia width ( Fig. 8 B–C).................. N. lachonta n. sp.

- Mid of palpal tibia weakly swollen, only 1.2 times wider than proximal and distal portions ( Fig. 9 B–C), copulatory bulb thick, slightly swollen at tegulum apical section and narrow at basal section ( Figs 8I ; 9 B–C).................... N. buruti n. sp.

Figures

FIGURE 1. Nyetnops guarani Platnick & Lise. A–F Male (IBSP 151469); G–I Female (IBSP 154310). A Habitus, dorsal view. B Left palp, prolateral view. C Left palp, retrolateral view. D Habitus, ventral view. E Prosoma, dorsal view. F Same, ventral view. G Habitus, dorsal view. H External genital area, ventral view. I Internal genitalia, dorsal view. Scale bar: A, D, G (1mm); B, C, E, F, H, I (0.5mm).Abbreviations: ap—anterior plate, ess—external sclerotization around spiracles, go—genital opening, pp—posterior plate, re—receptaculum.

FIGURE 3. Nyetnops guarani Platnick & Lise, male palp (IBSP 126553). A Left palp, prolateral view. B Left copulatory bulb, retrolateral view. C Left cymbium tip, view. D Detail of figure C, modified setae, prolateral view. E Left embolus tip, ventral view. F Left embolus tip, ventral oblique view. G Left embolus tip, dorsal view. H Same, retrolateral view. I Same, detail of tip, retrolateral view. J Right palp, prolateral view. K Detail of figure J, chemosensory setae, prolateral view. L Detail of figure J, setae, prolateral view. Abbreviations: cb—copulatory bulb, e—embolus, t—tegulum.

FIGURE 4. Nyetnops naylienae n. sp. A–F Male (SMNK-AR 12387); G–I Female (SMNK-AR 12388).A Habitus, dorsal view. B Left palp, prolateral view. C Left palp, retrolateral view. D Habitus, ventral view. E Prosoma, dorsal view. F Same, ventral view. G Habitus, dorsal view. H External genital area, ventral view. I Internal genitalia, dorsal view. Scale bar: A, D, G (1mm); B, C, E, F, H, I (0.5mm).Abbreviations: ap—anterior plate, ess—external sclerotization around spiracles, go—genital opening, re—receptaculum.

FIGURE 7. Nyetnops naylienae n. sp. A–F Left embolus on male (IBSP 89355). A Prolateral view. B Detail of tip, prolateral view. C Prolateral oblique view. D Retrolateral oblique view. E Retrolateral view. F Apical view. G—I Internal female genitalia, dorsal view (IBSP 89346). G Receptaculum and uterus externus. H Same, detail of left lobe on receptaculum. I Same, detail of trachea. Abbreviations: dmr—distal margin of receptaculum, e—embolus, re—receptaculum, pmr—proximal margin of receptaculum t—tegulum, tk—tracheal trunk, ue—uterus externus.

FIGURE 8. A–F Nyetnops lachonta n. sp., male (holotype). A Habitus, dorsal view. B Left palp, prolateral view. C Left palp, retrolateral view. D Habitus, ventral view. E Prosoma, dorsal view. F Same, ventral view. G–J Copulatory bulb drawings. G Nyetnops guarani Platnick & Lise. H Nyetnops naylienae n. sp. I Nyetnops buruti n. sp. J Nyetnops lachonta n. sp. Scale bar: A, D (1mm); B–C, E–J (0.5mm). G–H and I–J share scale bars. Abbreviations: tas—tegulum apical section, tbs—tegulum basal section, e—embolus.

FIGURE 9. Nyetnops buruti n. sp., male (holotype). A Habitus, dorsal view. B Left palp, prolateral view. C Left palp, retrolateral view. D Habitus, ventral view. E Prosoma, dorsal view. F Same, ventral view. Scale bar: A, D (1mm); B–C, E–F (0.5mm).