Semidysderina lagila, Platnick & Dupérré, 2011

Platnick, Norman I. & Dupérré, Nadine, 2011, The Andean Goblin Spiders Of The New Genera Paradysderina And Semidysderina (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2011 (364), pp. 1-121 : 102-113

Semidysderina lagila , new species Figures 742–826

TYPES: Male holotype and female allotype taken in pitfall traps at an elevation of 5050 ft at Cerro Lagila, Sierra Nevada de Santa Marta, Magdalena, Colombia (Apr. 15–30, 1975; J. Kochalka), deposited in AMNH (PBI_OON 37104) .

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

DIAGNOSIS: In sternal morphology this species resembles S. donachui rather than S. kochalkai , but the male embolus is more diamond shaped in lateral view (figs. 752, 753, 819) and the anterior margin of the female genital atrium is straight (figs. 824– 826).

MALE (PBI_OON 37104, figs. 742– 777, 814–820): Total length 2.07. Elevated portion of pars cephalica granulate. Chilum small, triangular. Sternum surface finely reticulate. Anterior ledge of paturon with slight tubercle on inner margin. Endites with wide ventral process, tip of process flattened, directed laterally. Leg spination: femora: I p0-0-2, r0-1-1, II p0-0-2, r0-1-0; tibiae I, II v4-4-2; metatarsi: I v2-2-2, II v2-2-0. Embolus diamond shaped in retrolateral view; cymbium fused with bulb but with clearly defined seam between, seam more obvious on prolateral side than on retrolateral side.

FEMALE (PBI_OON 37099, figs. 778– 813, 821–826): Total length 2.58. Postepigastric scutum covering about one-third of abdomen length. Leg spination: femora I, II p0-0-2, r0-1-1; tibiae I, II v4-4-2; metatarsi: I v2-2-2, II v2-2- 1p. Atrium short, wide; anterior genitalic process long, narrow.

OTHER MATERIAL EXAMINED: Colombia: Magdalena: Cerro Kennedy, northern Sierra Nevada de Santa Marta , Aug. 30, 1985, moss and litter, elev. 2600 m (H.-G. Müller, MHNG PBI_OON 15688), 18 ; El Campano, northern Sierra Nevada de Santa Marta , Apr. 20, 1986, leaf litter, elev. 1000 m (H.-G. Müller, MHNG PBI_OON 15610), 48 ; San Lorenzo, northern Sierra Nevada de Santa Marta , June 20, 1985, litter and moss, elev. 2200 m (H.-G. Müller, MHNG PBI_OON 880), 98 ; near San Lorenzo, northern Sierra Nevada de Santa Marta , Aug. 18–25, 1985, bamboo forest with litter and sphagnum, elev. 2250 m (H.- G. Müller, MHNG PBI_OON 878, 15803), 28, 1♀, Aug. 25, 1985, moss, elev. 1900 m (H.-G. Müller, MHNG PBI_OON 879), 18 ; San Pedro, Sierra Nevada de Santa Marta , May 19, 1975, epiphytic bromeliads and/or leaf litter, elev. 3150 ft (J. Kochalka, AMNH PBI_OON 37105), 48, 2♀ ; between San Pedro and San Javier, Sierra Nevada de Santa Marta , Mar. 29, 1975, sifted leaf litter, elev. 5,130 ft (J. Kochalka, AMNH PBI_OON 37099), 58, 6♀ ; near San Pedro de la Sierra, northwestern Sierra Nevada de Santa Marta , Apr. 12, 1986, litter, elev. 1000 m (H.-G. Müller, MHNG PBI_OON 15478), 38, 3♀ .

DISTRIBUTION: Known only from the Sierra Nevada de Santa Marta in northern Colombia, at elevations from 1000 to 2600 m.

Figures

Figs. 742–749. Semidysderina lagila, new species, male. 742. Carapace, dorsal view. 743. Same, lateral view. 744. Same, anterior view. 745. Chelicerae, anterior view. 746. Same, posterior view. 747. Mouthparts, ventral view. 748. Labrum and endites, dorsal view. 749. Left palp, ventral view.

Figs. 750–757. Semidysderina lagila, new species, male. 750. Left palp, prolateral view. 751. Same, retrolateral view. 752. Left embolus, prolateral view. 753. Same, retrolateral view. 754. Palpal tibia, dorsal view. 755. Tarsal organ, palp, dorsal view. 756. Sternum and mouthparts, ventral view. 757. Anterior portion of abdomen, ventral view.

Figs 758–765. Semidysderina lagila, new species, male. 758. Claws of leg I, lateral view. 759. Same, leg II. 760. Same, leg III. 761. Same, leg IV. 762. Claws of leg I, apical view. 763. Same, leg II. 764. Same, leg III. 765. Same, leg IV.

Figs. 766–773. Semidysderina lagila, new species, male. 766. Tarsal organ from leg I, dorsal view. 767. Same, leg II. 768. Same, leg III. 769. Same, leg IV. 770. Leg I, lateral view. 771. Same, leg II. 772. Same, leg III. 773. Same, leg IV.

Figs. 774–781. Semidysderina lagila, new species, male (774–777) and female (778–781). 774, 778. Spinnerets, apical view. 775, 779. Anterior lateral spinneret, apical view. 776, 780. Posterior median spinneret, apical view. 777, 781. Posterior lateral spinneret, apical view.

Figs. 782–789. Semidysderina lagila, new species, female. 782. Carapace, dorsal view. 783. Same, lateral view. 784. Same, anterior view. 785. Chelicerae, anterior view. 786. Same, posterior view. 787. Mouthparts, ventral view. 788. Labrum and endites, dorsal view. 789. Serrula, dorsal view.

Figs. 790–797. Semidysderina lagila, new species, female. 790. Claws of leg I, lateral view. 791. Same, leg II. 792. Same, leg III. 793. Same, leg IV. 794. Claws of leg I, apical view. 795. Same, leg II. 796. Same, leg III. 797. Same, leg IV.

Figs. 798–805. Semidysderina lagila, new species, female. 798. Sternum and mouthparts, ventral view. 799. Trichobothrial base from metatarsus II, dorsal view. 800. Palp, prolateral view. 801. Same, retrolateral view. 802. Palpal tibia, dorsal view. 803. Tarsal organ, palp, dorsal view. 804. Anterior portion of abdomen, ventral view. 805. Genitalia, ventral view.

Figs. 806–813. Semidysderina lagila, new species, female. 806. Leg I, lateral view. 807. Same, leg II. 808. Same, leg III. 809. Tarsal organ from leg I, dorsal view. 810. Same, leg II. 811. Same, leg III. 812. Same, leg IV. 813. Genitalia, dorsal view.

Figs. 814–826. Semidysderina lagila, new species, male (814–820) and female (821–826). 814. Carapace, dorsal view. 815, 821. Same, anterior view. 816. Sternum, ventral view. 817. Mouthparts, ventral view. 818. Left palp, prolateral view. 819. Same, ventral view. 820. Same, retrolateral view. 822. Abdomen, lateral view. 823. Same, ventral view. 824, 825. Epigastric region, ventral view. 826. Same, dorsal view.