Escaphiella peckorum, Platnick & Dupérré, 2009

Platnick, Norman I. & Dupérré, Nadine, 2009, The American Goblin Spiders Of The New Genus Escaphiella (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2009 (328), pp. 1-151 : 128-131

Escaphiella peckorum , new species Figures 830–852 ; map 17

TYPE: Male holotype taken from litter at the base of a tree 20 km SE Puerto Iguazú, Misiones, Argentina (Dec. 31, 1990; S., J. Peck), deposited in AMNH (PBI_OON 26875) .

ETYMOLOGY: The specific name is a patronym in honor of the collectors of the holotype.

DIAGNOSIS: Males of this distinctive species can easily be recognized by the relatively short, thick palpal femora (fig. 841) and the prolaterally directed tubercles on the embolar base (fig. 840); the palpi are symmetrical in both males examined. Female can easily be recognized by the angular anterior margin of the epigynum (figs. 849, 850).

MALE (PBI_OON 26875): Total length 1.22 (figs. 830, 831, 834). Carapace pale orange, surface of elevated portion of pars cephalica smooth, sides smooth; lateral margins without denticles (figs. 832, 835). Eyes: ALE circular, PME squared; ALE touching, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching (fig. 833). Sternum pale orange, without radial furrows between coxae I–II, II–III, III–IV, surface smooth, microsculpture absent (fig. 842). Chelicerae, endites, and labi-

(circle) and E. morro (stars).

um pale orange. Abdomen ovoid; book lung covers large, ovoid; pedicel tube medium, ribbed, scutopedicel region unmodified, scutum extending far dorsal of pedicel (figs. 836, 843); dorsal scutum pale orange, covering full length of abdomen, no soft tissue visible from above, middle surface smooth, sides smooth; postepigastric scutum pale orange, sides smooth (fig. 837). PMS present (compound microscope). Legs pale orange. Right and left palps symmetrical, proximal segments pale orange; embolus dark; femur enlarged (figs. 838–841); cymbium and bulb pale orange.

FEMALE (PBI_OON 26877): Total length 1.24 (figs. 851, 852). ALE separated by less than their radius (figs. 846, 847). Abdomen with soft portions of dorsum white (figs. 844, 848). Anterior margin of epigynum angular (figs. 845, 849, 850).

OTHER MATERIAL EXAMINED: ARGENTINA: Misiones: Parque Nacional Iguazú , Oct. 23–26, 1995 (M. Ramírez, MACN PBI_OON 26877), 2♀ ; 20 km SE Puerto Iguazú , Dec. 31, 1990, litter at tree base (S., J. Peck, AMNH PBI_OON 26875), 18 ; Sendero Macuco and adjacent trails, Parque Nacional Iguazú , 25 ° 409430S, 54 ° 269570W, Jan. 18–21, 2005 (C. Grismado, L. Lopardo, L. Piacentini, A. Quaglino, G. Rubio, MACN PBI_OON 26876), 1♀ .

DISTRIBUTION: Known only from Misiones, Argentina (map 17).

Figures

Figs. 830–837. Escaphiella peckorum, new species, male. 830. Habitus, dorsal view. 831. Habitus, ventral view. 832. Carapace, dorsal view. 833. Habitus, anterior view. 834. Habitus, lateral view. 835. Carapace, lateral view. 836. Anterior portion of abdomen, lateral view. 837. Epigastric region, ventral view.

Figs. 838–843. Escaphiella peckorum, new species, male. 838. Left palp, dorsal view. 839. Same, prolateral view. 840. Same, ventral view. 841. Same, retrolateral view. 842. Cephalothorax, ventral view. 843. Abdomen, anterior view.

Figs. 844–852. Escaphiella peckorum, new species, female. 844. Habitus, dorsal view. 845. Same, ventral view. 846. Carapace, dorsal view. 847. Habitus, anterior view. 848. Same, lateral view. 849. Anterior portion of abdomen, ventral view. 850. Epigynum, ventral view. 851. Carapace, lateral view. 852. Cephalothorax, ventral view.