Nops amazonas, 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 : 72-75

Nops amazonas new species

Figures 46A‒G ; 47A‒I

Types. Male holotype from Sítio Barroso, Juruti (02°27′41.7″S, 56°00′11.6″W), Pará, Brazil, 15.viii.2006, D.F. Candiani & N.F. Lo‒Man‒Hung, deposited in MPGE 8584. Female paratype, 14.viii.2006, other data as holotype, deposited in MPGE 8581. Two male paratypes, 15.viii.2006, other data as holotype, deposited in MPGE 8587.

Additional material examined. BRAZIL: Pará: Juruti (02°27′41.7″S, 56°00′11.6″W) , Vale de Igarapé Mutum, Platô do Rio Juruti, 10.vi.2007, D.F. Candiani & N.F. Lo – Man – Hung, 1♂ ( MPGE 14883 ) ; 1♂ ( MPGE 14885 ). Sítio Barroso (02°27′41.7″S, 56°00′11.6″W) , 22.xi.2007, D.F. Candiani & N.F. Lo‒Man‒Hung, 1♂ (MPGE 14891). Plato Capiranga, Linha 168E (02°28′22.1″S, 56°12′29.4″W), 22.xi.2007, D.F. Candiani & N.F. Lo‒Man‒Hung, 1♂ (palp for SEM) (MPGE 14882). Bragança, Mata de Lobão (00°55′27″S, 46°40′20.4″W), 25.vi‒1.vii.2005, Equipe de Bragança , 1♀ ( MPGE 21907 ) . Portel, Floresta Nacional de Caxiuanã (01°57′38.9″S, 51°36′45.3″W), Plote PPBio, Igarapé Caquajό, 13.ii.2007, M.A. Ribeiro ‒ Junior, 1♀ ( MPGE 21903 ) . Ditto , 28.vii.2007, M.A. Ribeiro ‒ Junior, 1♂ ( MPGE 21901 ) . Ditto, 02.iv.2007, M.A. Ribeiro ‒Junior & S.H.F. Abrantes, 1♀ ( MPGE 21905 ). Jacundá , 2 km. Sul Jacundá, Margem direita do Rio Tocantins (04°33′S, 49°27′W) , 14.v.1984, W.L. Overal, 1♂ (MPGE 3373). Amazonas: Manaus, Reserva Florestal Adolpho Ducke, 20.vii.1992, H. Höfer, 1♂ ( ZMNK) . Ditto , 15.vi.1992, H. Höfer, 1♂ ( ZMNK) . Ditto , 28.iv.1973, L.P. Alburquerque, 1♀ ( INPA) . Manaus , second forest (03°08′S, 60°01′W), 17.xi.1986, J. Adis, 1♀ 1♂ ( INPA) . Ditto , 14.v.1987, J. Adis, 1♀ ( INPA) . Ditto , 15.vi.1988, J. Adis, 1♂ ( INPA) . Ditto , 16.i.1987, J. Adis, 1♂ ( INPA) . Ditto , 2.ii.1988, J. Adis, 1♂ ( INPA) . Ditto , 31.viii.1986, J. Adis, 2♂ ( INPA) . Ditto , 15.viii.1986, J. Adis, 2♀ ( INPA) . Várzea , 3.xi.1987, H. Höfer, 1♂ ( INPA) . Fazenda Esteio, 60 Km N of Manaus , 28.v.1985, B.C. Klein, 1♀ (internal genitalia for SEM) ( INPA) . Fazenda Esteio, 60 Km N of Manaus , 19.vi.1985, B.C.Klein, 1♀ ( INPA) . Aripuanã, Reserva Humbolt, 28.i.1996, L.P. Alburquerque, 1♂ (INPA).

Etymology. The specific name is a Portuguese noun in apposition, derived from the region where the species occurs: Amazon River.

Diagnosis. Both sexes resemble similar congener Nops maculatus by having the abdominal pattern with an irregular longitudinal dark gray stripe throughout the dorsum similar as in figure 6J, and the PLS two times longer than PMS; but can be distinguished by having an embolus prolaterally sinuous in males ( Fig. 46B‒D ) and females with receptaculum without invagination ( Figs 46G ; 47A).

Description. Male (holotype): Carapace orange ( Fig. 46A ); chelicerae, legs, coxae, labium, endites and sternum yellowish orange. Abdomen light gray, dorsal pattern with an irregular longitudinal dark gray stripe throughout the dorsum as in figure 6J, lighter ventrally. Anal tubercle and spinnerets light gray. Total length 8.8. Carapace 5.15 long, 3.8 wide. Sternum 4.7 long, 3.2 wide. Leg measurements: I: 4.0; II: 3.75; III: 3.4; IV: 4.05. Posterior unpaired claws small, as in other three‒clawed spiders. PLS longer than PMS. Palp with embolus longer than palpal tibia, sinuous and curved ( Fig. 46B‒D ); embolar tip beveled with short two extensions ( Fig. 47F‒G ).

Female (paratype): Carapace chelicerae, labium, coxae, legs, endites and sternum as in male. Abdomen as in male ( Fig. 46E ). Anal tubercle and spinnerets whitish yellow. Total length 9.0. Carapace 5.3 long, 4.0 wide. Sternum 4.95 long, 3.5 wide. Leg measurements: I: 4.25; II: 4.0; III: 3.7; IV: 4.35. Posterior unpaired claws and PLS as in male. External genital area with weakly sclerotized anterior plate and lep, unremarkable ess ( Fig. 46F ). Internal genitalia with receptaculum without invagination and uterus externus with narrow base ( Figs 46G ; 47A‒C).

Natural history. Most of specimens were collected with arboreal traps.

Distribution. Known from the region of the Amazon River, Brazilian States of Amazonas and Pará ( Fig. 44G ).

Figures

FIGURE 44. A–F Nops alexenriquei n. sp.; A–C male (holotype); D–F female (paratype). A habitus, dorsal view. B left palp, prolateral view. C left palp, retrolateral view. D habitus, dorsal view. E external genital area, ventral view. F internal genitalia, dorsal view. G distribution of Nops alexenriquei n. sp. (circles) and Nops amazonas n. sp. (stars). Abbreviations: ap—anterior plate, ess—sclerotization around spiracles, lep—lateral extensions of posterior plate, pp—posterior plate, re—posterior receptaculum, ue—uterus externus. Scale bars: 2 mm (A, D), 0.5 mm (B–C, E–F).

FIGURE 46. Nops amazonas 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, lep—lateral extensions of posterior plate, pp—posterior plate, re—receptaculum, ue—uterus externus. Scale bars: 2 mm (A, E), 0.5 mm (B–D, F–G).

FIGURE 47. A–I Nops amazonas n. sp.; A–C female (Fazenda Esteio: INPA); D–L male (Juruti: MPGE 14882). A internal genitalia, dorsal view. B detail of uterus externus, dorsal view. C internal genitalia, anterior view. D left palp, prolateral view. E same, ventral view. F tip of embolus, ventral view. G tip of embolus, prolateral view. H tibial brush, prolateral view. I stridulatory pick, prolateral view. J left tarsus IV, prolateral view. K pretarsal claws IV, prolateral view. L same, anterior view. Abbreviations: aj—adesmatic joints, ete—embolar tip extensions, pfs—patch of frictional setae, ptb—prolateral tibial brush, re—posterior receptaculum, ue—uterus externus.