230 
Psyche 
[December 
dorsum of the abdomen black, the sides white, and the venter yellow- 
ish without pigment (Fig. 55). The carapace and palpi of this species 
are black. The illustrations were prepared from the types of Achaea 
pulchra. 
Ghrysso caraca sp. n. 
Figures 61, 62 
Type. Female from Caraca, Minas Gerais, Brazil (E. Gounelle), 
in the Museum National d’Histoire Naturelle, Paris (no. 8881). 
The specific name is a noun in apposition after the type locality. 
Description. Carapace yellow. Sternum yellow, gray or black. 
Legs yellow, sometimes with irregular black marks. Abdomen with a 
median longitudinal dorsal white band and white patches on sides; a 
black spot on each side of posterior tip and sometimes a black patch 
on each side. Carapace fairly high. Anterior median eyes slightly 
smaller than others, their diameter apart, one-quarter from laterals. 
Posterior median eyes one diameter apart, their radius from laterals. 
Chelicerae with two teeth on anterior margin, probably none posterior. 
Abdomen barely longer than high. Total length 2.9 mm. Carapace 
0.98 mm long, 0.79 mm wide. First femur, 1.7 1 mm; patella and 
tibia, 1.69 mm; metatarsus, 1.43 mm; tarsus, 0.62 mm. Second 
patella and tibia, 1.00mm; third, 0.59 mm; fourth, 1.12 mm. 
Diagnosis. The opening of the epigynum is bordered by an anterior 
lip (Fig. 62) unlike C. pulchra ; the shorter, straighter ducts (Fig. 
61 ) separate this species from C. ribeirao. 
Records. 3 paratypes collected with type. 
Chrysso backstromi (Berland), new combination 
Figures 58-60 
Theridion backstromi Berland, 1924, The Natural History of Juan Fernandez 
and Easter Island, 3 : 426, figs. 4-6, $ . Female type from Juan Fernandez 
Island, [Chile] in the Naturhistoriska Riksmuseum, Stockholm, examined. 
Description. Yellow-white with white and black markings (Fig. 
58). Legs yellow-white with black rings on ends of femora and tibiae 
of fourth leg. Anterior median eyes smaller than others, a little more 
than one diameter apart, their radius from laterals. Posterior eyes 
two-thirds their diameter apart. Eyes appearing white and relatively 
large. Chelicerae without teeth. Abdomen with a hump (Fig. 58). 
Total length 2.5 mm. Carapace, 1.1 mm long, 1.0 mm wide. First 
femur, 2.2 mm ; patella and tibia, 2.2 mm ; metatarsus, 2.0 mm ; tarsus, 
0.9 mm. Second patella and tibia, 1.3 mm; third, 0.9 mm; fourth 1.5 
mm. 
