Nops pocone, Sánchez-Ruiz & Brescovit, 2018

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 : 99-100

Nops pocone new species

Figures 67A‒G ; 68A‒L

Types. Male holotype from Poconé (16°15′25″S, 56°37′22″W), Mato Grosso, Brazil, xi.2010 ‒ viii.2011, E. Meurer, deposited in IBSP 212811 . Male and female paratypes, same data as holotype, deposited in IBSP 212812 .

Additional material examined. BRAZIL: Mato Grosso: Poconé (16°15′25″S, 56°37′22″W), xi.2010 – viii.2011, E. Meurer, 1♂ 1♀ ( IBSP 212813 ; 212816). Ditto , 1♂ 1♀ (IBSP 212820). Ditto, 1♂ (IBSP 212814). Ditto, 1♂ 5♀ ( IBSP 212815 ; 212817‒212819). Campo Verde (15°34′0″S, 55°10′8″W), Fazenda Mourao , 28.vi.2004, E.P. Silva , 1♀ ( IBSP 56219 ). Mato Grosso do Sul: Corumbá, Passo de Lontra, (19°57′54″S, 57°03′ 72″W), Subregiones Miranda e Abobral , vi.1998 – xi.1999, J. Raizer , 1♂ (palp for SEM) (IBSP 121596); 1 immature (IBSP 1 21589); 1♂ (IBSP 121594); 1♀ (IBSP 121599); 1♀ (IBSP 121608); 10♂ 7♀ (IBSP 212799‒212810).

Etymology. The specific name is a noun in apposition derived from the type locality.

Diagnosis. Both sexes resemble the similar congeners N. sublaevis , N. meridionalis and N. minas , which have a similar abdominal pattern as in figure 6I and the posterior unpaired claws small ( Fig. 5C ), but can be distinguished by the PLS of equal size as PMS.

Description. Male (holotype): Carapace orange ( Fig. 67A ). Chelicerae, labium, and legs yellowish orange, coxae and trochanters lighter. Endites and sternum yellowish orange. Abdomen light gray, dorsal pattern as in figure 6I, lighter ventrally. Anal tubercle and spinnerets light gray. Total length 8.9. Carapace 5.3 long, 3.25 wide. Sternum 4.7 long, 3.0 wide. Leg measurements: I: 3.8; II: 3.75; III: 3.3; IV: 3.95. Posterior unpaired claws small, as in other three‒clawed spiders ( Figs 5C ). PLS of equal size as PMS. Palp with straight embolus, shorter than palpal tibia ( Figs 67B‒D ; 68E); embolar tip with a wide cut on prolateral side and two short extensions ( Fig. 68G‒H ).

Female (paratype): Carapace, chelicerae, labium, coxae, legs, endites and sternum as in male. Abdomen as in male ( Fig. 67E ). Anal tubercle and spinnerets whitish yellow. Total length 9.2. Carapace 5.5 long, 3.35 wide. Sternum 4.9 long, 3.4 wide. Leg measurements: I: 3.9; II: 3.8; III: 3.5; IV: 4.05. Posterior unpaired claws and PLS as in male. External genital area with weakly sclerotized anterior plate, strongly sclerotized lep and remarkable ess ( Fig. 67F ). Internal genitalia without invagination on receptaculum and uterus externus with narrow base ( Figs 67G ; 68J‒L).

Distribution. Known from the Brazilian States of Mato Grosso and Mato Grosso do Sul ( Fig. 69A ).

Figures

FIGURE 5. A–C diagrams of tarsal claws in Nops MacLeay showing only distal part of tarsi and claws (other structures as setae, frictional hairs or basal membrane were omitted). A–B Nops guanabacoae MacLeay. C Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón. D diagram of metatarsus and tarsus I in Nops guanabacoae MacLeay showing membranous modifications of Nopinae legs (other structures as setae, frictional hairs or basal membrane were also omitted). Abbreviations: aj—adesmatic joint, ar—arolium, ca—crista, CwL—claw lever, gl—gladius, MtS –metatarsal dorsal stopper, SC—pretarsal paired claws, IC—pretarsal unpaired claw. Scale bar: 40 µm (A–B), 0.5 mm (D).

FIGURE 67. Nops pocone n. sp.; A–D male (holotype); E–G female (paratype). 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, go—genital opening, pp—posterior plate, re—posterior receptaculum, ue—uterus externus. Scale bars: 2 mm (A, E), 0.5 mm (B–D, F–G).

FIGURE 68. Nops pocone n. sp.; A–I male (IBSP 121596); J–L female (IBSP 121599). A pretarsal claws on left leg IV, anterior view. B same, prolateral oblique view. C unpaired claw on left leg IV, prolateral oblique view. D crista and gladius on left leg I, ventral view. E left palp, prolateral view. F left tarsal brush, prolateral view. G tip of left embolus, prolateral view. H same, dorsal view. I left stridulatory pick, prolateral view. J internal genitalia, dorsal view. K detail of receptaculum, dorsal view. L internal genitalia, anterior view. Abbreviations: ap—anterior plate, ca—crista, CwL—claw lever, CwS—claw slit sensilla, gl—gladius, ete—embolar tip extensions, re—posterior receptaculum, ue—uterus externus.

FIGURE 69. Distribution maps. A Nops pocone n. sp.; B Nops quito Dupérré.