90 
Psyche 
[June 
Chrosiothes litus sp. n. 
Figures 34-36 
Type. Female holotype from San Bias, Nayarit, Mexico, 6 August 
1947 (C. M. Goodnight, B. Malkin) in the American Museum of 
Natural History. The specific name is an arbitrary combination of 
letters. 
Description. Carapace, sternum, legs dark brown. Distal end of 
third and fourth tarsi yellow-white. Abdomen black with scattered 
small white pigment spots, most distinct on humps. Eyes subequal in 
size; anterior median eyes three-quarters diameter apart, almost 
touching laterals. Posterior eyes their diameter apart. Abdomen 
relatively flat, as wide as long with seven humps (Fig. 36). Total 
length 3.4 mm. Carapace 1.2 mm long, 1.2 mm wide. Third patella 
and tibia, 0.9 mm. Fourth femur, 2.0 mm; patella and tibia, 2.0 mm; 
metatarsus, 2.1 mm; tarsus, 0.8 mm. 
The specimen described is damaged and lacks first and second legs. 
Diagnosis. The seven humps of the abdomen (Fig. 36) readily 
separates C. litus from all other species of Chrosiothes. 
Cabello gen. nov. 
Type species. Cabello eugeni sp. n. Cabello is named after the 
city Puerto Cabello, Venezuela and the name is of masculine gender. 
Description. Small theridiid spider with eight eyes, carapace as 
wide as long, first patella and tibia almost twice as long as carapace 
width. Chelicerae with two teeth on anterior margin, one posterior. 
Fourth leg with tarsal comb. Abdomen wider than long with two 
humps. Colulus lacking. Female genitalia with winding duct. Palpus 
has all sclerites: median apophysis, radix, conductor (Fig. 46). 
Diagnosis. This genus differs from Theridion and Achaearanea in 
having the abdomen wider than long, with two humps, and in having 
the left embolus pointing counterclockwise. It differs from Achaear- 
anea in having a radix in the palpus; from Theridula in having a 
more complex palpus with radix and median apophysis. It differs 
from Chrosiothes and Episinus by lacking a colulus. 
Cabello eugeni sp. n. 
Figures 40-46 
Type. Male holotype from “Corosal, Puerto Cabello”, Venezuela, 
1888 (E. Simon), in the Museum National d’Histoire Naturelle, 
Paris (no. 10959). Corosal was a coffee plantation on the north 
slope of Mt. Silla (Dist. Fed.), Puerto Cabello is in the state Cara- 
