Nyetnops guarani 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 : 463

Nyetnops guarani Platnick & Lise, 2007

Figures 1–3 , 8G , 10A

Nyetnops guarani: Platnick & Lise, 2007: 8 , figs 1–30.

Types. Male holotype and female paratype from Fóz do Córrego Três Barras, Rio Guarani, Três Barras do Paraná, Paraná, Brazil, 24.ii–24.iii.1993, A.B. Bonaldo, deposited in MCN 56799 and MCN 56800, respectively, examined.

Additional material examined. BRAZIL: Santa Catarina: Blumenau, Parque Municipal das Nascentes do Ribeirão Garcia (27°06’S 49°10’W), 18.v.2004 – 28.ii.2005, R.C. Francisco, 1♂ ( IBSP 122709 ) ; Chapecó, Rio Monte Alegre (27°10’52,07”S 53°46’42,03”W), ii.2008, R.C. Francisco, 1♂ ( IBSP 126553 ; palps, carapace and legs for SEM) ; ii.2008, R.C. Francisco, 2♂ ( IBSP 126555 , IBSP 126554 ) ; São Paulo: Teodoro Sampaio, Parque Estadual Morro do Diabo (22°36’34”S 52°10’36”W), 24–31.iii.2003, Equipe BIOTA, 1♂ ( IBSP 151469 ) ; 24–31.iii.2003, Equipe BIOTA, 1♀ ( IBSP 154310 ) ; 24–31.iii.2003, Equipe BIOTA, 1♂ ( IBSP 154313 ) ; 24–31.iii.2003, Equipe BIOTA, 1♂ ( IBSP 154314 ) .

Remarks. Specimens examined from the Brazilian State of São Paulo correspond to a new locality record for this species, previously known from the Southern Brazilian States of Paraná, Rio Grande do Sul and Santa Catarina.

Diagnosis. Males of N. guarani resembles those of N. naylienae n. sp. by having a short copulatory bulb (tegulum + embolus), the length just two times or less the palpal tibia length ( Figs 1 B–C; 4B–C), but differ by the weakly swollen tegulum apical section (tas), two times wider than basal section but narrower than palpal tibia width ( Figs 1 B–C, 8G) and by the beveled embolus tip with very short projections ( Fig. 3 G–I). Females are readily recognized by the triangular distal margin of receptaculum (dmr) ( Figs 1I ; 10A ). Additionally, both males and females have a darker carapace pattern if compared with all other known Nyetnops species ( Fig. 1A, E, G ).

Description. Male and female described by Platnick and Lise (2007): 9. Complementary description of female (IBSP 154310): External genital area with anterior and posterior plates slightly sclerotized ( Fig. 1H ). Internal area with a triangular distal margin of receptaculum ( Figs 1I ; 10A ).

Distribution. South and Southeast Brazil ( Fig. 10C ).

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 2. Nyetnops guarani Platnick & Lise, male (IBSP 126553). A Left tarsus I, prolateral view. B Left pretarsus IV, retrolateral view. C Right trochanter II, ventral view. D Tarsal organ on leg IV, dorsal view. E Trichobothria on metatarsus IV, dorsal view. F Spinnerets, apical view. G Chelicera, lateral oblique view. H Prosoma, ventral view. I Labium and endites, ventral view. J Mouthparts, ventral oblique view. K Right serrula, ventral view. L Labium, ventral view. Abbreviations: aj—adesmatic joints, os—outer sides on anterior margin of endites.

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 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 10. A–B Drawings of female genitalia, dorsal view. Scale bar: 0.25mm.A Nyetnops guarani Platnick & Lise. B Nyet- nops naylienae n. sp. C Distribution map of Nyetnops guarani Platnick & Lise (circles), Nyetnops buruti n. sp. (stars) Nyetnops lachonta n. sp. (square) and Nyetnops naylienae n. sp. (triangle). Abbreviations: as—anterior tracheal spiracles, dmr—distal margin of receptaculum, ap—anterior plate, ess—external sclerotization around spiracles, pmr—proximal margin of receptaculum, pp—posterior plate, ps—posterior tracheal spiracles, re—receptaculum, ue—uterus externus.