1945 ] 
185 
Southern Spiders 
States. The p.m.e. do not touch, the abdomen is covered with 
a brown net work and the epigynum has a large chitinized hood 
that protrudes from the venter and shows a triangular opening 
below. Theridiosoma argentatum Keyserling was described 
from an immature male from Georgia. The cephalothorax is 
0.8 mm. long and the abdomen, 2.2 mm. long, with silvery spots 
and a brown net work, this is shown in the figure of the entire 
spider but the figure of the eyes is undoubtedly wrong as the 
a.m.e. are the largest and neither the anterior or the posterior 
median eyes touch. 
Theridiosoma nelsoni is probably the species figured by Dr. 
Archer, 1941, p. 18, pi. 1, fig. 4, as Theridiosoma argentatum. 
He describes it in life as “a minute spider — a red abdomen 
with a conspicuous transverse band across the middle. The red 
fades to greyish in alcohol.” Unfortunately he gives no meas- 
urements but mentions several places in Alabama where it is 
found. The figure of the epigynum agrees fairly well with 
Theridiosoma nelsoni. 
Family Gnaphosim; 
Genus Sergiolus Simon 1891 
Sergiolus meretrix Chamberlin 
Figure 3 
Sergiolus meretrix Chamberlin, 1922, p. 153. “ S North Caro- 
lina; Raleigh.” 
Sergiolus meretrix Kaston, 1945, p. 4, figs. 13, 22-24. 
Female. Length, 5.3 mm., ceph. 2.5 mm. long, 1.5 mm. wide, 
abd. 3.0 mm. long, 1.5 mm. wide. 
Cephalothorax yellow with scattered long dark hairs, mod- 
erately convex, anterior margin narrowed to about one-third 
greatest width, thoracic groove very short and faint at posterior 
third; eyes cover middle two-thirds of anterior margin, anterior 
row straight, eyes subequal and equidistant, a.m.e. diurnal, 
separated by about a diameter, posterior row longer than an- 
terior row, recurved, eyes subequal, p.m.e. little nearer to p.l.e. 
than to each other; quadrangle narrower in front and higher 
than wide; clypeus narrow, about equals diameter of a.m.e.; 
mandibles yellow, with many long black bristles, vertical, cone- 
shaped; labium yellow, longer than wide, tip pointed; maxillae 
yellow, twice as long as labium, strongly impressed, tips trun- 
