232 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
s 
than a diameter; MR separated a little less than a diameter; side eyes on tubercles, about 
equal in size; almost contingent; SF removed from MF by about the area of the latter, the 
intervening space being about 1.5 MF; front row recurved, longer rear row slightly pro- 
curved; clypeus height about two diameters MF; the front eyes project somewhat beyond 
the bases of the mandibles. 
Lees: 1, 2, 4, 3; stout, of uniform yellow color, well provided with yellowish hairs, 
and a few short, feeble, dark spines, with a few stout bristles; the palps are colored as the 
legs; the mandibles conical, yellow, thick at the bases, and slightly retreating towards the 
sternum. 
Aspomen: Oval, considerably longer than broad; slightly thicker across the shoulders, 
and diminishing but little towards the apex, which is high above the spinnerets; the latter 
placed immediately beneath the apical wall; the base extends well over the corselet. The 
dorsum has a broad, median, yellow ribbon, in the centre of which runs longitudinally, the 
entire length, an irregular thread of brownish hue; on either side are longitudinal bands 
of brown extending to the base in front, and quite to the spinnerets posteriorly. These are 
followed on each side by a band of yellow similar to those on the dorsum, and this again 
lower down upon the sides by a broader longitudinal band of brown, which extends to the 
venter. These markings give to the dorsum the appearance of being longitudinally striped. 
The skin is glossy, pubescent, and reticulated over the entire surface. The original color of 
the specimens is lost in the alcohol, but appears to be brown and yellow. The venter has 
an oblong band of yellowish brown, with a bright marginal ribbon of yellow on either side, 
the latter surrounding the dark spinnerets in interrupted lines. The epigynum (Fig. 3a) 
has a rather wide atriolum, with a short, rounded, subtriangular scapus extending a little 
beyond the margins of the portulee, which are slits under the atriolum. 
The male (Fig. 4) is somewhat smaller than the female, being 4 mm. in length. In 
marking and color it quite closely resembles the female, but the hues appear to be some- 
what lighter. The palpal digits are distinguished as in Fig. 4a. 
Disrrizution: Georgia and North Carolina. Specimens presented by Mr. Thomas Gentry. 
No. 84. Singa nigripes Krysrriine. Plate XIX, Figs. 5, 6. 
1863. Singa nigripes, Knyseruina . . . Neue Spinn. Amer., v., p. 655, pl. 21., Fig. 7. 
1889. Singa nigripes, Marx ..... Catalogue, p. 549. 
1893. Singa nigripes, Knyspruinc . . . Spinnen. Amerik. Epeir., p. 290, xv., 214. 
Fremate: Total length, 3.5 mm.; abdomen, 2-+ mm. long, 1.75 mm. wide. The general 
colors are orange and yellow, and on the abdomen a light reddish yellow or ash color, 
except on the legs, where the last three members in most species are black or blackish. 
This peculiarity of the feet casually marks the species, in connection with the black spots 
on the abdominal dorsum. 
CrpHALorHorAx: A well rounded oval, elevated in the centre, sharply sloping behind 
the caput; prominent, squarish, slightly pubescent; corselet and head a uniform orange, 
with a slightly darker shade on the marked cephalic suture; the sternum heart shaped, 
almost triangular, wide in front, much rounded at the apex; sternal cones distinct, flattened 
in the middle, very slightly pubescent; color orange yellow, uniform with the surrounding 
coxee and the mouth parts; the width in front almost equal to the length. Labium tri- 
angular; maxillee as broad as long, cut square at the tips. 
Eyes: Ocular quad on a rounded eminence, whose interior is blackish, thus sharply 
contrasted with the orange color of the face; front somewhat narrower than rear, the sides 
somewhat longest; MF slightly smaller than MR, separated by about one diameter, MR by 
a less space. MF from SF by about their area, the intervening space about that between 
MF and MR. Side eyes on a slight tubercle; contiguous; SR separated from MR by a 
space about equal to the area of the latter; clypeus high, the margin separated from MF 
by at least three or more diameters. Front eye row recurved, rear row slightly procurved, 
nearly aligned. The caput somewhat contracted at the face, which projects over the 
mandibles. 
