234 
Psyche 
[December 
4.3 mm; patella and tibia, 4.4 mm; metatarsus, 5.0 mm; tarsus, 0.9 
mm. Second patella and tibia, 2.2 mm; third, 1.4 mm; fourth, 3.4 
mm. 
Diagnosis. The palpus of T. bracteata has a longer tibia and a 
different tip than that of T. affinis. The depression in the epigynum 
is almost square and on a projection (Figs. 22-24). 
Natural History: The type specimens were found on underside of 
a leaf. 
Records. Trinidad. Port of Spain, 1913 (R. Thaxter). Colombia. 
Amazonas : Leticia (J. N. Layne). Peru: Huanuco : Tingo Maria, 
8 Oct. 1946 (J. C. Pallister, AMNH) ; Monzon Valley, Tingo 
Maria (E. I. Schlinger and E. S. Ross, CAS). San Martin: Moyo- 
bamba, 20 Dec. 1949 (J. C. Pallister, AMNH) ; Mishqui-yacu, 20 
km NE of Moyobamba, 1600 m, Aug. 1947 (F. Woytkowski, 
AMNH). Ayacucho: Soriano (K. Jelski, PAS). Brazil. Para: 
Belem, Feb. 1959, $, c? (A. M. Nadler, AMNH). Paraguay: 
Concepcion : Apa, 1909 (AMNH) Alto Parana: Taquarazapa 
(AMNH). Bolivia. Cochabamba: El Palmar, Chapare, 900-1000 m, 
Sept. 1956, 9 (L. Pena, ISNB). La Paz: Chulumani, 1700 m, 
Dec. 1955, ? (L. Pena, ISNB). 
Thwaitesia splendida Keyserling 
Figures 25-26 
Thwaitesia splendida Keyserling, 1884, Die Spinnen Amerikas, Theridiidae, 
2(1): 166, pi. 8, fig. 102. Female holotype from “Neu Granada” [Co- 
lombia, Panama and Venezuela] in the British Museum, examined. 
Thwaitesia simoni (Keyserling) 
Figures 20-21 
Hildbolda simoni Keyserling, 1884, Die Spinnen Amerikas, Theridiidae, 
2(1); 157, pi. 7, fig. 97, 9. Female holotype from “Le Para” [Belem, 
Para, Brazil], in the Museum National d’Histoire Naturelle, Paris, 
examined. Keyserling wrote that this species came from “Boston”; 
it does not occur in North America and the label in the vial indicates 
a Brazilian locality. 
Thwaitesia simoni , — Petrunkevitch, 1911, Bull. Amer. Mus. Nat. Hist., 
29 : 21 2 . 
The abdomen of this species is wider than high with silvery spots. 
References Cited 
Levi, H. W. 
1955 (1954). The spider genera Episinus and Spintharus from North 
America, Central America and the West Indies (Araneae: 
Theridiidae.) Jour. New York Ent. Soc., 62: 65-90. 
Levi, H. W. and L. R. Levi. 
1962. The genera of the spider family Theridiidae. Bull. Mus. Comp. 
Zool., 127(1) : 1-71. 
