Niarchos palenque, Platnick & Duperre, 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 : 62-84

Niarchos palenque , new species Figures 561–655

TYPE: Male holotype from Berlese sample of forest litter taken at an elevation of 700 ft at the Río Palenque Station, 47 km S of Santo Domingo, Los Ríos, Ecuador (June 18–30, 1975; S., J. Peck), deposited in FMNH (PBI_OON 37749) .

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

DIAGNOSIS: Males resemble those of N. facundoi but have a much shorter translucent tip on the embolus (figs. 568–572); females lack the ovoid sclerotization between the epigastric and postepigastric scuta found in those of N. facundoi , and have a shorter, anteriorly wider anterior genitalic process (figs. 654, 655).

MALE (PBI_OON 37749, figs. 561–611): Total length 1.17. Posterior eye row pro- curved from above; PLE-PME separated by less than PME radius. Sternum surface smooth. Endites with anteromedian projections narrow, distally situated, directed ventrally. Leg spination: tibiae IV v0-0-2. Embolus relatively short, distal portion translucent (figs. 568–572).

FEMALE (PBI_OON 37830, figs. 612– 655): Total length 1.41. Leg spination: tibiae IV v0-0-2. Internal genitalic sclerotizations visible externally in weakly sclerotized area between epigastric and postepigastric scutum (figs. 654, 655).

OTHER MATERIAL EXAMINED: Ecuador: Los Ríos: Río Palenque Station, 47 km S Santo Domingo, June 18–30, 1975, Berlese, forest litter, elev. 700 ft (S., J. Peck, AMNH, MACN, QCAZ PBI_OON 40822), 4 -, (same, AMNH, FMNH 33699, QCAZ PBI_OON 10201), 1 -, 7 U, (same, FMNH PBI_OON 37830), 1 U, Feb. 21–24, 1976, Berlese, leaf litter with palm fruits, elev. 260 m (S. Peck, FMNH PBI_OON 37834), 2 U.

DISTRIBUTION: Known only from the Río Palenque Station in Los Ríos province, Ecuador.

Figures

Figs. 561–572. Niarchos palenque, new species, male. 561. Habitus, dorsal view. 562. Same, ventral view. 563. Same, lateral view. 564. Carapace, dorsal view. 565. Habitus, anterior view. 566. Carapace, lateral view. 567. Sternum and mouthparts, ventral view. 568. Embolus, prolateral view. 569. Same, retrolateral view. 570. Palp, prolateral view. 571. Same, ventral view. 572. Same, retrolateral view.

Figs. 573–580. Niarchos palenque, new species, male. 573. Habitus, dorsal view. 574. Same, lateral view. 575. Carapace, dorsal view. 576. Same, lateral view. 577. Same, anterior view. 578. Chelicerae, anterior view. 579. Same, posterior view. 580. Base of fang, anterior view.

Figs. 581–588. Niarchos palenque, new species, male. 581. Labium and endites, ventral view. 582. Tip of endite, ventral view. 583. Labrum and endites, dorsal view. 584. Serrula, ventral view. 585. Sternum, ventral view. 586. Dorsal scutum, anterior portion, dorsal view. 587. Sperm pore, ventral view. 588. Trichobothrial base, tibia II, dorsal view.

Figs. 589–596. Niarchos palenque, new species, male. 589. Spinnerets, distal view. 590. Anterior lateral spinneret, same. 591. Posterior median spinneret, same. 592. Posterior lateral spinneret, same. 593. Tip of tibia III, lateral view. 594. Same, tibia IV. 595. Same, metatarsus III. 596. Same, metatarsus IV.

Figs. 597–604. Niarchos palenque, new species, male. 597. Claws of leg I, dorsal view. 598. Claws of leg II, distal view. 599. Same, lateral view. 600. Same, leg III. 601. Claws of leg IV, distal view. 602. Tarsal organ, leg I, dorsal view. 603. Same, leg II. 604. Same, leg III.

Figs. 605–612. Niarchos palenque, new species. 605. Male, tarsal organ, leg IV. 606. Same, palp. 607. Male palp, prolateral view. 608. Same, retrolateral view. 609. Male palpal tibia, dorsal view. 610. Embolus, prolateral view. 611. Same, retrolateral view. 612. Female serrula, ventral view.

Figs. 613–620. Niarchos palenque, new species, female. 613. Habitus, dorsal view. 614. Same, lateral view. 615. Carapace, anterior view. 616. Same, dorsal view. 617. Same, lateral view. 618. Chelicerae, anterior view. 619. Same, posterior view. 620. Sternum, ventral view.

Figs. 621–628. Niarchos palenque, new species, female. 621. Labium and endites, ventral view. 622. Labrum and endites, dorsal view. 623. Epigastric region, ventral view. 624. Genitalia, dorsal view. 625. Spinnerets, distal view. 626. Anterior lateral spinneret, same. 627. Posterior median spinneret, same. 628. Posterior lateral spinneret, same.

Figs. 629–637. Niarchos palenque, new species, female. 629. Tip of tibia III, lateral view. 630. Same, tibia IV. 631. Same, metatarsus III. 632. Same, metatarsus IV. 633. Tarsal organ, leg I, dorsal view. 634. Same, leg II. 635. Same, leg III. 636. Same, leg IV. 637. Same, palp.

Figs. 638–646. Niarchos palenque, new species, female. 638. Claws of leg I, distal view. 639. Claws of leg II, lateral view. 640. Claws of leg III, oblique distal view. 641. Same, lateral view. 642. Claws of leg IV, distal view. 643. Same, lateral view. 644. Palp, prolateral view. 645. Same, retrolateral view. 646. Palpal tibia, dorsal view.

Figs. 647–655. Niarchos palenque, new species, female. 647. Habitus, dorsal view. 648. Carapace, dorsal view. 649. Sternum, ventral view. 650. Abdomen, ventral view. 651. Carapace, dorsal view. 652. Same, lateral view. 653. Epigastric region, ventral view. 654. Genitalia, ventral view. 655. Same, dorsal view.