1971] 
Reiskind — Genus Psellocoptus 
201 
Pedipalp yellow with red-brown cymbium. Tarsus with a small 
globose genital bulb drawn out into an extremely long neck with a 
moderately small, straight sclerotized embolus with a distinct twist 
at the tip (Fig. io and n). 
Female 
Measurements. Based on 7 females: carapace length 4.25-4.60 
mm; carapace width 2.10-2.20 mm; carapace index 47-49; sternum 
length 2.OO-2.15 mm; sternum width 1.15-1.25 mm; sternum index 
52-60. 
Femur IV length 3.55-4.00 mm; femur IV width 0.45-0.50 mm; 
leg thickness index 1 1 .5-13.1 ; leg length index 83-91. 
Abdomen length 4.30-5. 15 mm; abdomen width 1.75-2.55 mm; 
abdomen index 38-52. 
Description. Carapace deep maroon-brown surface heavily gran- 
ulated. Cephalic region width 75-82% of maximum carapace width. 
White plumose hair pattern as in male. 
Dorsum of abdomen brown-black, with a small dark red-brown 
dorsal sclerite extending 25-29% the length of the abdomen. A 
white plumose hair pattern consisting of pairs of spots and horizontal 
bands — complete and incomplete — extending over the dorsum from 
thick longitudinal lateral bands; similar to the male. Scattered long, 
thin erect hairs on dorsum, but fewer than in the male. A trace 
of an inframammilliary sclerite. 
Sternum deep reddish-brown, slightly granulated with sparce long 
thin simple hairs. 
Chelicerae deep red-brown. The apices of the endites and cheli- 
cerae with heavy scopulae. Face of chelicerae shiny with some simple 
hairs and patches of white plumose hairs near the clypeus. 
Leg color and pattern as in the male. Tibia I ventral spination: 
usually 5-4 (54%) or 5-5 (39%). 
External epigynum with two semicircular openings directed lat- 
erally (Fig. 13). Area between openings with a series of horizontal 
ridges. Internal structure with a large anterior and posterior sperma- 
thecal bulb on each side (Fig. 12). 
Records. All twelve specimens from Rancho Grande, a research 
station in the Cordillera de la Costa near Maracay, Venezuela. 
Psellocoptus prodontus new species 
Figures 1, 2, 8, 9, 15, 16. 
Holotype. Male from Rancho Grande, Venezuela, 16-XII-1954 
(A. M. Nadler) ; in the American Museum of Natural History. The 
specific name is from the Greek meaning tooth in front. 
