Escaphiella catemaco, 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 : 44-49

Escaphiella catemaco , new species Figures 240–268 ; map 4

TYPES: Male holotype and female allotype taken from litter at base of tree at an elevation of 160 m at Los Tuxtlas Biological Station , 33 km NE of Catemaco, Veracruz, Mexico (Aug. 1, 1983; S., J. Peck), deposited in AMNH (PBI_OON 36872) .

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

DIAGNOSIS: Males resemble those of E. acapulco in having the right palp reduced (figs. 249–256) but have a distinctive black seta at the anteromedian tip of each endite (fig. 245–247); females can be distinguished by the posterior extension on the anterior epigynal sclerite (fig. 267).

MALE (PBI_OON 36871): Total length 1.17 (figs. 240, 241, 244). Carapace pale orange, surface of elevated portion of pars cephalica smooth, sides granulate, sides of pars thoracica granulate, granulation not reaching apex; lateral margins with blunt denticles (figs. 242, 245). Eyes: ALE circular, PME squared; ALE touching, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching (fig. 243). Sternum pale orange, without radial furrows between coxae I–II, II–III, III–IV, surface smooth, microsculpture absent (fig. 247). Chelicerae, endites, and labium pale orange. Endites anteromedialy with distinctive spiniform tip (fig. 246). Abdomen ovoid; book lung covers large, ovoid (fig. 257); pedicel tube medium, ribbed, scutum extending far dorsal of pedicel, with small scutal ridge above pedicel and long, oval scutal ridge far above pedicel; dorsal scutum pale orange, covering more than 3/4 of abdomen, no soft tissue visible from above, middle surface smooth, sides smooth; postepigastric scutum pale orange, sides smooth (fig. 248). PMS present (compound microscope). Legs pale orange. Palp right palp consistently different from left palp, much less robust (figs. 249– 256), proximal segments pale orange; embolus dark; femur normal size; cymbium and bulb pale orange.

FEMALE (PBI_OON 36872): Total length 1.19 (figs. 260, 262, 266, 268). Abdomen with soft portions of dorsum white (figs. 258,

261); pedicel tube small (fig. 259); single scutal ridge present above pedicel; margins of anterior part of epigastric scutum with small ridge and granulations (figs. 264, 265). Anterior epigynal sclerite posteriorly extend- ed, widened (figs. 263, 267).

OTHER MATERIAL EXAMINED: MEXICO: Morelos: Tepoztlán, 18 ° 589N, 99 ° 079W, May 5, 1963 (W. Gertsch, W. Ivie, AMNH PBI_OON 36874), 18, 1♀. Oaxaca: 12 mi W Tehuantepec, 16 ° 209N, 95 ° 209W, Apr. 29, 1963 (W. Gertsch, W. Ivie, AMNH PBI_OON 36873), 18. San Luis Potosí: Tamazunchale, 21 ° 159N, 98 ° 479W, Aug. 17, 1964 (J., W. Ivie, AMNH PBI_OON 36876), 1♀, 21 ° 159N, 98 ° 489W, Apr. 19, 1963 (W. Gertsch, W. Ivie, AMNH PBI_OON 36875), 1♀. Veracruz: Los Tuxtlas Biological Station , 33 km NE Catemaco, Aug. 1, 1983, tree base litter, elev. 160 m (S., J. Peck, AMNH PBI_OON 36872), 2♀ ; Playa Azul, Catemaco , 18 ° 259N, 95 ° 049W, Aug. 9, 1966 (J., W. Ivie, AMNH PBI_OON 36871), 18 ; 3 mi S Veracruz , 19 ° 089N, 96 ° 079W, Apr. 26, 1963 (W. Gertsch, W. Ivie, AMNH PBI_OON 36870), 1♀ .

DISTRIBUTION: Eastern Mexico (map 4).

Figures

Figs. 240–248. Escaphiella catemaco, new species, male. 240. Habitus, dorsal view. 241. Same, ventral view. 242. Carapace, dorsal view. 243. Habitus, anterior view. 244. Same, lateral view. 245. Carapace, lateral view. 246. Endite, lateral view. 247. Cephalothorax, ventral view. 248. Epigastric region, ventral view.

Figs. 249–257. Escaphiella catemaco, new species, male. 249. Left palp, dorsal view. 250. Same, prolateral view. 251. Same, ventral view. 252. Same, retrolateral view. 253. Right palp, dorsal view. 254. Same, prolateral view. 255. Same, ventral view. 256. Same, retrolateral view. 257. Abdomen, ventral view.

Figs. 258–268. Escaphiella catemaco, new species, female. 258. Habitus, dorsal view. 259. Same, ventral view. 260. Carapace, dorsal view. 261. Habitus, anterior view. 262. Same, lateral view. 263. Abdomen, ventral view. 264. Same, anterior view. 265. Anterior portion of abdomen, lateral view. 266. Cephalothorax, ventral view. 267. Epigynum, ventral view. 268. Carapace, lateral view.