1962] 
Levi — Chrysso 
229 
tain whether the palpus (Fig. 30) has a radix. The palpal structure 
separates C. arops from other Chrysso. 
Chrysso ribeirao sp. n. 
Figures 52-54 
Type. Female from Ribeirao Pires, 700-800 m alt., Est. Sao Paulo, 
Brazil, Dec. 1945 (H. Sick), in the American Museum of Natural 
History. The specific name is a noun in apposition after the type 
locality. 
Description. Carapace yellow-white with some gray around pos- 
terior margin. Sternum all black in most specimens, in some only 
partially. Legs yellow-white with a black band on distal end of first 
femora and first tibiae. Abdomen with black and white areas and a 
median dorsal white band (Fig. 52). Eyes subequal in size. Anterior 
median eyes their diameter apart, almost touching laterals. Posterior 
median eyes their diameter apart, two-thirds from laterals. Abdomen 
without grooves (Fig. 52). Total length 2.7 mm. Carapace 0.89 
mm long, 0.77 mm wide. First patella and tibia 1.8 mm; second 1.04 
mm; third 0.74 mm. fourth 1.22 mm. 
Diagnosis. The curved connecting ducts opening near the posterior 
rim (Figs. 53, 54) separates this species from others. The distance 
between the opening and the rim is variable. 
Records. Brazil. Guanabara: Teresopolis, March 1946, 3 9 para- 
types (H. Sick, AMNH). 
Chrysso pulchra (Keyserling) , new combination 
Figures 55-57 
Achaea signata Keyserling, 1891, Die Spinnen Amerikas, Brasilianische 
Spinnen, 3: 199, pi. 7, fig. 1+3, 9. Female type from Alto da Serra do 
Novo Friburgo [Nova Friburgo, Est. Guanabara], Brazil: in the British 
Museum, Natural History, examined. NEW SYNONYMY. 
Achaea pulchra Keyserling, 1891, op', cit., p. 200, pi. 7, fig. 144, 9. Female 
type from Alto da Serra do Novo Friburgo [Novo Friburgo, Est. Guana- 
bara], Brazil in the British Museum, Natural History, examined. 
Theridion pulchrum, — Roewer, 1942, Katalog der Araneae, 1: 497. 
T heridion signatellum Roewer, 1942, op. cit., p. 498. New name for signata, 
thought to be preoccupied by Theridion signata Walckenaer, 1805. NEW 
SYNONYMY. 
Comments. Although signata has page priority, it will help nomen- 
clatural stability to use the namei pulchra , since Theridion signata is 
preoccupied and some authors might consider Chrysso and Theridion 
synonymous. The types of signata and pulchra differ only in the color- 
ation of the abdomen, a variable character. Chrysso pulchra has the 
