Scaphios yanayacu, Platnick, Norman I. & Dupérré, Nadine, 2010

Platnick, Norman I. & Dupérré, Nadine, 2010, The Andean Goblin Spiders Of The New Genera Niarchos And Scaphios (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2010 (345), pp. 1-120 : 94-104

Scaphios yanayacu , new species Figs. 3, 4 , 709–800

TYPES: Male holotype and female allotype from Winkler samples of litter taken at an elevation of 2100 m on the circuit trail at Yanayacu Biological Station, Napo, Ecuador (Nov. 25, 2009; B. Baehr, Niarchos Exped. ), deposited in QCAZ (PBI_OON 452) .

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Males resemble those of S. napo but have a shorter embolus (figs. 717– 721); females have the transverse sclerite at the base of the anterior genitalic projection longer than in that species (figs. 799, 800).

MALE (PBI_OON 452, figs. 3, 709–757): Total length 1.36. PME oval; ALE separated by less than their radius; PLE-PME separat- ed by less than PME radius. Endites with anterior projection beaklike, directed laterally. Leg spination: tibiae IV v0-0-2. Embolus relatively short, sinuous, distally darkened; bulb elongated (figs. 717–721).

FEMALE (PBI_OON 452, figs. 4, 758– 800): Total length 1.76. Posterior eye row recurved from above, procurved from front. Leg spination: tibiae: III, IV v0-0-2. Anterior genitalic process anteriorly expanded, leaflike, transverse bar at base of anterior process long, procurved; apodemes large, occupying full distance between posterior spiracles (figs. 799, 800).

OTHER MATERIAL EXAMINED: Ecuador: Napo: Yanayacu Biological Station, 0u 36.4969S, 77u 52.9479W, Nov. 28, 2009, litter, hand collecting, elev. 2405 m (B. Baehr, Niarchos Exped., AMNH PBI _OON 419), 2 -; Yanayacu Biological Station, circuit trail, Nov. 25, 2009, Winkler trap, litter, elev. 2100 m (B. Baehr, Niarchos Exped., AMNH PBI _OON 452), 1 U; Yanayacu Biological Station, Macucoloma trail, 0u 36.1969S, 77u 53.4079W, Nov. 25–30, 2009, beating foliage, elev. 2100 m ( Niarchos Exped., MACN OON _PBI 456), 1 -; Yanayacu Biological Station, Río Perdido trail, 0u 36.4969S, 77u 52.9479W, Nov. 26, 2009, litter, elev. 2085 m ( Niarchos Exped., AMNH PBI _OON 420), 4 -, 5 U, Nov. 25–26, 2009, same, beating ( Niarchos Exped., MACN PBI _OON 455, 458), 2 U; Yanayacu Biological Station, stream trail, 0u 35.9559S, 77u 53.4319W, Nov. 24–25, 2009, litter, elev. 2130 m ( Niarchos Exped., AMNH PBI _OON 417), 6 -, 5 U (including 2 -, 1 U P. Michalik vouchers EC-005, 045, 047), Nov. 24–Dec. 2, 2009, pitfalls, elev. 2130 m (N. Platnick, N. Dupérre´, E. Tapia, Niarchos Exped., AMNH PBI _OON 416), 19 -, 6 U, same, pitfalls, Winkler traps (B. Baehr, Niarchos Exped, AMNH PBI _OON 451), 3 -, 3 U, Nov. 25–30, 2009, Berlese ( Niarchos Exped., MACN PBI _OON 453), 1 -, sifting ( Niarchos Exped., MACN PBI _OON 456), 1 -; Yanayacu Biological Station, trail to San Jorge de Yanayacu Wildlife Refuge, 0.58818uS, 77.88428uW, Nov. 30, 2009, elev. 2140 m ( Niarchos Exped., AMNH PBI _OON 424), 2 -, Nov. 25–30, 2009, sifting ( Niarchos, Exped., MACN PBI _OON 454, 457), 3 -, 1 U.

DISTRIBUTION: Known only from the Yanayacu Biological Station in Napo province, Ecuador, where it is sympatric with S. napo .

Figures

Figs. 1–4. Posterior views of sternum and pedicel. 1. Niarchos barragani, new species, male. 2. Same, female. 3. Scaphios yanayacu, new species, male. 4. Same, female.

Figs. 709–721. Scaphios yanayacu, new species, male. 709. Habitus, dorsal view. 710. Same, ventral view. 711. Same, lateral view. 712. Carapace, dorsal view. 713. Habitus, anterior view. 714. Carapace, lateral view. 715. Epigastric region, ventral view. 716. Sternum and mouthparts, ventral view. 717. Embolus, prolateral view. 718. Same, retrolateral view. 719. Palp, prolateral view. 720. Same, ventral view. 721. Same, retrolateral view.

Figs. 722–729. Scaphios yanayacu, new species, male. 722. Habitus, dorsal view. 723. Same, lateral view. 724. Same, anterior view. 725. Carapace, dorsal view. 726. Same, detail. 727. Same, lateral view. 728. Chelicerae, anterior view. 729. Same, posterior view.

Figs. 730–737. Scaphios yanayacu, new species, male. 730. Labium and endites, ventral view. 731. Labrum and endites, dorsal view. 732. Serrula, dorsal view. 733. Sternum, ventral view. 734. Sperm pore, ventral view. 735. Spinnerets, distal view. 736. Anterior lateral spinneret, same. 737. Posterior median spinneret, same.

Figs. 738–745. Scaphios yanayacu, new species, male. 738. Posterior lateral spinneret, distal view. 739. Tarsal organ, leg I, dorsal view. 740. Same, leg II. 741. Same, leg III. 742. Same, leg IV. 743. Same, palp. 744. Trichobothrial base, tibia III, dorsal view. 745. Palpal tibia, dorsal view.

Figs. 746–753. Scaphios yanayacu, new species, male. 746. Tip of tibia III, lateral view. 747. Same, tibia IV. 748. Same, metatarsus III. 749. Same, metatarsus IV. 750. Claws, leg I, distal view. 751. Same, leg II. 752. Same, leg III. 753. Same, leg IV.

Figs. 754–761. Scaphios yanayacu, new species. 754. Male palp, prolateral view. 755. Same, ventral view. 756. Same, retrolateral view. 757. Embolus, prolateral view. 758. Female, claws of leg I, distal view. 759. Same, leg II. 760. Same, leg III. 761. Same, leg IV.

Figs. 762–769. Scaphios yanayacu, new species, female. 762. Habitus, dorsal view. 763. Same, anterior view. 764. Carapace, dorsal view. 765. Same, lateral view. 766. Chelicerae, anterior view. 767. Same, posterior view. 768. Labium and endites, ventral view. 769. Labrum and endites, dorsal view.

Figs. 770–777. Scaphios yanayacu, new species, female. 770. Serrula, dorsal view. 771. Sternum, ventral view. 772. Epigastric region, ventral view. 773. Genitalia, dorsal view. 774. Same, anterior view. 775. Palp, prolateral view. 776. Palp, retrolateral view. 777. Palpal tibia, dorsal view.

Figs. 778–785. Scaphios yanayacu, new species, female. 778. Tip of tibia III, lateral view. 779. Same, tibia IV. 780. Same, metatarsus III. 781. Same, metatarsus IV. 782. Spinnerets, distal view. 783. Anterior lateral spinneret, same. 784. Posterior median spinneret, same. 785. Posterior lateral spinneret, same.

Figs. 786–790. Scaphios yanayacu, new species, female. 786. Tarsal organ, leg I, dorsal view. 787. Same, leg II. 788. Same, leg III. 789. Same, leg IV. 790. Same, palp.

Figs. 791–800. Scaphios yanayacu, new species, female. 791. Habitus, dorsal view. 792. Same, ventral view. 793. Carapace, dorsal view. 794. Sternum and mouthparts, ventral view. 795. Habitus, lateral view. 796. Same, anterior view. 797. Carapace, lateral view. 798. Epigastric region, ventral view. 799. Genitalia, ventral view. 800. Same, dorsal view.