1960] 
Levi 
Spider genus Styposis 
15 
Record. Nicaragua. Musawas, Waspuc River, Oct. 10-31, 1955, 
9 , cT, Nov. 1-4, 1955, ?, cT (B. Malkin). 
Styposis chickeringi, new species 
Figures 10-17 
Types. Male holotype and female paratypes from El Valle, Pana- 
ma, July 1936 (A. M. Chickering), in the Museum of Comparative 
Zoology. 
Description. Spider colorless, except for silvery eyes and spots of 
pigment where anterior median eyes usually are. Posterior median 
eyes one diameter apart, touching laterals. Chelicerae with one blunt 
tooth (Fig. 11). Abdomen wider than long (Fig. 10). Measure- 
ments of male holotype, total length 1.3 mm. Carapace, 0.77 mm. 
long, 0.72 mm. wide. First femur, 1.50 mm.; patella and tibia, 1.82 
mm.; metatarsus, 1.32 mm.; tarsus, 0.44 mm. Second patella and 
tibia, 1.22 mm.; third, 0.75 mm.; fourth, 0.96 mm. Measurements 
of female paratype, total length 1.3 mm. Carapace, 0.60 mm. long, 
0.55 mm. wide. First femur, 1.25 mm.; patella and tibia, 1.35 mm.; 
metatarsus, 0.96 mm. ; tarsus, 0.36 mm. Second patella and tibia, 0.88 
mm. ; third, 0.52 mm. ; fourth, 0.82 mm. 
Diagnosis. The genitalia (Figs. 12, 13, 16, 17) as well as the eye 
distance separate this species from the others of this genus. 
Styposis nicaraguensis, new species 
Figures 8-9 
Type. Male type from Musawas, Waspuc River, Nicaragua, Oc- 
tober 10, 31, 1955 (B. Malkin), in the American Museum of Natural 
History. 
Description. Spider slightly yellowish. Anterior median eyes ab- 
sent. Anterior eyes slightly more than their diameter apart. Posterior 
median eyes their radius apart, touching laterals. Chelicerae with 
two teeth on the anterior margin. Total length of male type 1.4 mm. 
Carapace 0.62 mm. long, 0.55 mm. wide. First femur, 1.46 mm.; 
patella and tibia, 1.55 mm.; metatarsus 1.03 mm.; tarsus, 0.47 mm. 
Second patella and tibia, 1.0 mm.; third, 0.56 mm.; fourth, 0.94 mm. 
Diagnosis. The male palpus (Fig. 9) distinguishes this species. 
Styposis clausis, new species 
Figure 1-4 
Types. Female holotype, female paratype from Forest Reserve, 
Canal Zone, July 4-6, 1939 (A. M. Chickering), in the Museum of 
Comparative Zoology. 
