Semidysderina mulleri, 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 : 117-120

Semidysderina mulleri , new species Figures 874–886

TYPE: Male holotype from moist litter taken at an elevation of 2000 m near San Lorenzo, northern Sierra Nevada de Santa Marta, Magdalena, Colombia (June 9, 1985; H.-G. Müller), deposited in MHNG (PBI_OON 15692) .

ETYMOLOGY: The specific name is a patronym in honor of Hans-George Müller, collector of all the known specimens of this species.

DIAGNOSIS: Males can easily be recognized by the long embolus (figs. 877–880), females by the relatively long genitalic atrium bordered by a W-shaped anterior margin (figs. 884–886).

MALE (PBI_OON 15692, figs. 874–880): Total length 2.05. Elevated portion of pars cephalica appears reticulate. Chilum small, triangular. Sternum surface finely reticulate. Anterior ledge of paturon with slight tubercle on inner margin. Endites with wide ventral process rounded distally, tip directed laterally. Leg spination: femur I p0-0-2, r0-1-1; tibiae: I v4-4-2, II v4-4-1p; metatarsi I, II v2- 2- 1p. Embolus relatively long, with large basal and small distal projections.

FEMALE (PBI_OON 15603, figs. 881– 886): Total length 2.43. Postepigastric scutum only around epigastric furrow. 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- 1p. Atrium relatively long, anterior margin W-shaped, projecting over atrial plate.

OTHER MATERIAL EXAMINED: Colombia: Magdalena: San Lorenzo, northern Sierra Nevada de Santa Marta , June 20, 1985, litter and moss, elev. 2200 m (H.-G. Müller, MHNG PBI_OON 15603), 88, 6♀ ; near San Lorenzo, northern Sierra Nevada de Santa Marta , June 9, 1985, litter, elev. 2000 m (H.-G. Müller, MHNG PBI_OON 15693), 18, Aug. 18–25, 1985, wet litter and moss, elev. 2200 m (H.-G. Müller, MHNG PBI_OON 15576), 28, 2♀, Aug. 22–24, 1985, bamboo forest with litter, elev. 2250 m (H.-G. Müller, MHNG PBI_OON 15425, 15605, 15687), 68, 6♀, Aug. 24, 1985, thorn forest with moist litter, elev. 2200 m (H.- G. Müller, MHNG PBI_OON 884), 28, Aug. 25, 1985, moss, elev. 1900 m (H.-G. Müller, MHNG PBI_OON 15705), 28 .

DISTRIBUTION: Known only from the Sierra Nevada de Santa Marta in northern Colombia.

Figures

Figs. 874–886. Semidysderina mulleri, new species, male (874–880) and female (881–886). 874. Carapace, dorsal view. 875, 881. Same, anterior view. 876. Sternum and mouthparts, ventral view. 877. Left embolus, prolateral view. 878. Left palp, prolateral view. 879. Same, ventral view. 880. Same, retrolateral view. 882. Abdomen, lateral view. 883. Same, ventral view. 884, 885. Epigastric region, ventral view. 886. Same, dorsal view.