Nops agnarssoni Sánchez

Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2018, A revision of the Neotropical spider genus Nops MacLeay (Araneae: Caponiidae) with the first phylogenetic hypothesis for the Nopinae genera, Zootaxa 4427 (1), pp. 1-121 : 21

Nops agnarssoni Sánchez –Ruiz, Brescovit & Alayón, 2015

Figures 8A‒D ; 9A‒F

Nops blandus: Armas, 2010: 60 (misidentification, only male paratype IBSP 166241).

Nops agnarssoni Sánchez –Ruiz Brescovit & Alayón, 2015: 45, figs 37–43, 78. Male holotype from Isla Caja de Muerto (17°53′15.7″N, 66°31′37.2″W), Puerto Rico, 24.vii.2010, L. F. Armas & A. Perez–Asso (IBSP 166240) and male paratype, same data as holotype (IBSP 166241, palp and leg IV for SEM; both examined).

Diagnosis. Nops agnarssoni resembles similar congeners Nops blandus ( Fig. 10B‒D ) and Nops finisfurvus ( Fig. 15C‒D ) by having a short and curved embolus; but can be distinguished by having short unpaired claws on posterior legs ( Fig. 9B ).

Description. Male (holotype): described by Sánchez‒Ruiz et al. (2015). Female: Unknown.

Natural history. Both known specimens were collected under rocks, on the way to the lighthouse.

Distribution: Known only from the type locality Caja de Muerto Island, Puerto Rico ( Fig. 8E ).

Figures

FIGURE 8. A–D Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón, male (holotype). A habitus, dorsal view. B habitus, ventral view. C left palp, retrolateral view. D left palp, prolateral view. E distribution of Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón (square), Nops blandus (Bryant) (circles) and Nops finisfurvus Sánchez–Ruiz, Brescovit & Alayón (stars). Scale bars: 2 mm (A–B), 0.5 mm (C–D).

FIGURE 9. A–F Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón, male (paratype); G–L Nops blandus (Bryant), male (MCZ 128295). A left leg IV, retrolateral view. B pretarsal claws on left leg IV, anterior oblique view. C left palp, retrolateral view. D tip of embolus, ventral oblique view. E tip of embolus, retrolateral view. F stridulatory pick from palpal femur, prolateral view. G pretarsal claws on left leg IV, anterior oblique view. H left palp, prolateral view. I stridulatory pick from palpal femur, prolateral view. J embolus, prolateral view. K embolus, ventral oblique view. L tip of embolus, ventral oblique view. Abbreviations: CwL—claw lever, ete—embolar tip extensions.

FIGURE 10. Nops blandus (Bryant); A–D. male (Saint John: MCZ 128295); E–I. female (Saint John: MCZ 128295). A habitus, dorsal view. B left palp, prolateral view. C left palp, ventral view. D left palp, retrolateral view. E habitus, dorsal view. F external genital area, ventral view. G internal genitalia, dorsal view. Abbreviations: ap—anterior plate, ess—sclerotization around spiracles, lep—lateral extension of posterior plate, pp—posterior plate, re—posterior receptaculum, ue—uterus externus. Scale bars: 2 mm (A, E), 0.5 mm (B–D, F–G).

FIGURE 15. Nops finisfurvus Sánchez–Ruiz, Brescovit & Alayón; A–D male (holotype); E–G female (paratype). A habitus, dorsal view. B habitus, ventral view. C left palp, prolateral view. D left palp, retrolateral view. E habitus, dorsal view. F external genital area, ventral view. G internal genitalia, dorsal view. Abbreviations: ap—anterior plate, ess—external sclerotization around spiracles, lep—lateral extensions of posterior plate, pp—posterior plate, re—posterior receptaculum, ue—uterus externus. Scale bars: 2 mm (A, B, E), 0.5 mm (C–D, E–F).