Escaphiella nayarit, 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 : 56-61

Escaphiella nayarit , new species Figures 319–342 ; map 6

TYPE: Male holotype from Compostela, Nayarit, Mexico (July 26, 1954; W. Gertsch), deposited in AMNH (PBI_OON 26826) .

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

DIAGNOSIS: Males resemble those of E. nye in having the embolus abruptly narrowed at the tip of the base, but have a shorter embolus (figs. 328–331); females have a posteriorly widened epigynal area including a pair of widely separated posterior depressions (fig. 341).

MALE (PBI_OON 26825): Total length 1.24 (figs. 319, 320, 323). Carapace pale orange, surface of elevated portion of pars cephalica granulate, sides granulate; lateral margins with blunt denticles (figs. 324, 325). Eyes: ALE circular, PME circular; ALE separated by less than their radius, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching (fig. 322). Sternum pale orange, without radial furrows between coxae I–II, II–III, III–IV, surface smooth, microsculpture absent (fig. 332). Chelicerae, endites, and labium pale orange. Abdomen ovoid; book lung covers small, ovoid; pedicel tube medium, ribbed, scutopedicel region unmodified, scutum extending far dorsal of pedicel (fig. 327); dorsal scutum pale orange, covering full length of abdomen, no soft tissue visible from above, middle surface smooth, sides smooth (fig. 321); postepigastric scutum pale orange, sides smooth (fig. 326). PMS present (light microscope). Legs pale orange. Right and left palps symmetrical, proximal segments pale orange; embolus dark; abruptly narrowed, relatively short (figs. 328–331), femur normal size; cymbium pale orange; bulb yellow.

FEMALE (PBI_OON 26823): Total length 1.28 (figs. 333, 334, 338, 339, 342). Abdomen with soft portions of dorsum white (figs. 335,

337, 340). Epigynum posteriorly widened, with pair of posterior depressions (figs. 336, 341).

OTHER MATERIAL EXAMINED: MEXICO: Nayarit: Compostela , July 26, 1954 (W. Gertsch, AMNH PBI_OON 26825), 18, 2♀ ; 5 mi NE San Blas , 21 ° 349N, 105 ° 129W, May 14, 1963 (W. Gertsch, W. Ivie, AMNH PBI_OON 26824), 18 ; 7 mi E San Blas , July 27, 1964 (W. Gertsch, J. Woods, AMNH PBI_OON 26823), 1♀ .

DISTRIBUTION: Known only from Nayarit, Mexico (map 6).

Figures

Figs. 319–327. Escaphiella nayarit, new species, male. 319. Habitus, dorsal view. 320. Same, ventral view. 321. Abdomen, dorsal view. 322. Habitus, anterior view. 323. Same, lateral view. 324. Carapace, dorsal view. 325. Same, lateral view. 326. Abdomen, ventral view. 327. Anterior portion of abdomen, oblique ventral view.

Figs. 328–334. Escaphiella nayarit, new species. 328. Left male palp, dorsal view. 329. Same, prolateral view. 330. Same, ventral view. 331. Same, retrolateral view. 332. Male cephalothorax, ventral view. 333. Same, female. 334. Female abdomen, lateral view.

Figs. 335–342. Escaphiella nayarit, new species, female. 335. Habitus, dorsal view. 336. Same, ventral view. 337. Abdomen, dorsal view. 338. Habitus, anterior view. 339. Same, lateral view. 340. Abdomen, anterior view. 341. Epigynum, ventral view. 342. Carapace, dorsal view.