58 
Psyche 
[June 
row straight, eyes surrounded by red rings, p.m.e. larger 
than a.m.e., separated by less than a diameter, p.l.e. sepa- 
rated from p.m.e. by about a diameter of p.l.e., lateral 
eyes touching, p.l.e. larger than a.l.e. ; quadrangle slightly 
higher than wide and about the same width in front as 
behind; clypeus higher than quadrangle; mandibles ver- 
tical, pale brown; labium dark, fused to the sternum, 
wider than long; maxillce pale, more than twice as long 
as the labium, slightly inclined; sternum white, triangu- 
lar, about as wide as long, ending in a truncate lobe be- 
tween the fourth coxae which are separated by fully a di- 
ameter; abdomen globose, pale, with no definite pattern, 
a small white inverted V at the base surrounded by 
black that quickly fades, dorsum with small cliitinized 
dots that may be the bases of colorless hairs, venter a 
dull brown with an irregular median white spot; legs 
relatively short, 1-2-4-3, II left missing, white with bro- 
ken dark rings at the tips of tibiae and metatarsi, no 
spines but rows of colorless hairs, most conspicuous on 
the anterior tarsi and metatarsi; epigynum , a pair of 
heavily chitinized round openings just above the fold 
that touch on the median line with larger and more 
widely separated sacs beneath the surface just anterior. 
Holotype 2 Mexico; Acapulco, 19 December 1944 (S. 
Jones). 
Theridion maculipes is very small even for a Theri- 
dion. The most conspicuous characters are the white 
legs with the black dots and the black inverted V at the 
base of the abdomen. The openings of the epigynum 
are very distinct. 
Theridion placidum spec. nov. 
Figure 5 
Female. Length, 2.6 mm., ceph. 0.9 mm., abd. 1.6 mm. 
long, 1.5 mm. wide. 
Cephalothorax pale, cephalic portion slightly darker, 
shining, no hairs ; eyes cover the anterior margin, an- 
terior row slightly recurved, a.m.e. dark, separated by 
less than a diameter, convex, a.l.e. smaller than a.m.e., 
separated from them by about a radius of a.m.e., pos- 
