Scaphiella williamsi Gertsch, 1941

Platnick, N. & Dupérré N., 2010, The Goblin Spider Genus Scaphiella (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2010 (332), pp. 1-156 : 44-45

Scaphiella williamsi Gertsch Figures 470–569; map 11

Scaphiella williamsi Gertsch, 1941: 11 , figs. 18, 19 (male holotype from Barro Colorado Island, Panamá, Panama, in AMNH; examined). – Chickering, 1951: 239, fig. 28; 1968: 155, figs. 53, 54. – Heimer, 1990: 6, fig. 16.

29882), 3 -, 2 U, Nov. 1952 – Mar. 1953, Berlese (J. Zetek, AMNH PBI _OON 29637), 1 -, July 21, 1958, forest litter (D. Blest, BMNH PBI _ OON 316 ), 6 -, 1 U, 9u109N, 79u109W, July 1, 1961 ( AMNH PBI _OON 29631), 1 U, Aug. 24, 1975, Berlese, litter (S. Levings, USNM 2046648 , PBI _OON 29625), 1 -, 1 U, Aug. 31, 1975, same ( USNM PBI _OON 29622), 1 -, Oct. 12, 1975, same ( USNM PBI _OON 29624), 1 U, Dec. 25, 1975, same ( USNM PBI _OON 29623), 1 -, Mar. 28, 1976, same ( USNM PBI _OON 29629), 1 -, May 16, 1976, same ( USNM PBI _OON 29621), 1 -, Feb. 21, 1977, same ( USNM PBI _OON 29619), 1 -, June 4, 1977, same ( USNM PBI _OON 29628), 2 -, 2 U, July 2, 1977, same ( USNM PBI _OON 29626), 4 -, July 9, 1977, same ( USNM PBI _OON 29620), 2 -, 1 U, July 18, 1977, same ( USNM PBI _OON 29627), 1 -, Feb. 12, 1976, Berlese, wet leaves and flood debris, forest stream (A. Newton, MCZ 72884, PBI _OON 29630), 1 U ; Parque Nacional Soberania, Aug. 7, 1983, secondary forest litter (P. Lehtinen, ZMUT PBI _OON 16069), 3 -, 2 U. COLOMBIA: Cundinamarca: Finca Bella Vista, near Sasaima , May 7, 1965, from leaf litter at night (P., D. Craig, CAS 9026679 , PBI _ OON 2620 ), 1 -. Meta: Quebrada Susumuco , 23 km NW Villavicencio, Mar. 2, 1972, Berlese , forest litter, elev. 1000 m (S. Peck, AMNH PBI _OON 29615), 1 U .

DISTRIBUTION: Panama and Colombia (map 10).

DIAGNOSIS: Males can be distinguished from the frequently sympatric S. barroana by the presence of well-developed microsculpture on the sides of the pars thoracica (figs. 483, 484) and the lack of an enlargement at the base of the embolus (fig. 480), females by the much longer anterior epigynal sclerite (fig. 532).

MALE (PBI_OON 26804, figs. 470–523). Total length 1.22. Carapace with obvious granulation reaching halfway up sides of pars thoracica. Sternum smooth. Endites anteromedially with small striated plate. Abdomen unpatterned, scuta smooth. Palpal femur moderately expanded; embolus long, thin; bulb with small knob situated just retrolateral to embolar base.

FEMALE (PBI_OON 26804, figs. 524–569). Total length 1.31. Endites unmodified. Epigynal atrium circular, with long, wide anterior sclerite surrounding medially situated, horseshoe-shaped opening; apodemes long, narrow.

MATERIAL EXAMINED: PANAMA: Cocle´: Antón, El Harino – El Nance, Sept. 3–5, 1988 (D. Quintero, MIUP PBI _OON 36749), 1 U. Colón: Gamboa, Jan. 28, 1958 (A. Chickering, MCZ 71948, PBI _OON 29884), 1 -; Gatún, Feb. 15, 1958 (A. Chickering, MCZ 71960, PBI _OON 26873), 1 U, Feb. 27, 1958 (A. Chickering, MCZ 66855, PBI _OON 29886), 1 U. Panama´: Barro Colorado Island , no date (K. Cooper, AMNH PBI _OON 29635), 1 -, July 9, 1935 (E. Williams, Jr., AMNH PBI _ OON 317 ), 1 - (holotype), June–Oct. 1946, Berlese (J. Zetek, MCZ 71996, PBI _OON 29887), 1 U, Nov. 1952 – Mar. 1953 (J. Zetek, AMNH PBI _OON 29636), 1 -, Aug. 1954 (A. Chickering, MCZ 71934, PBI _OON 29844), 1 U, Aug. 21, 1958, banana litter (D. Blest, BMNH PBI _ OON 318 ), 2 U ; Jan. 1960, leaf litter from base of large tree (W. Brown, MCZ 71961, PBI _OON 29888), 1 U, 9u109N, 79u109W, June 14–July 31, 1961 ( AMNH PBI _OON 29633, 29634 ), 2 U, May 15, 1964 (A. Chickering, MCZ 71950, PBI _OON 26841), 1 -; W Cañita at river flood plain, Jan. 3, 1981, Berlese, palm buttress with stump (W. Suter, FMNH 33695 , PBI _OON 10197), 3 -, 1 U ; Summit Gardens, July 24 ,

1954 (A. Chickering, MCZ 66853, PBI _OON 26874), 1 -, Dec. 20, 1957 (A. Chickering, MCZ PBI _OON 26804), 1 -, 1 U.

DISTRIBUTION: Panama (map 11).