1975] 
Brady — Oxyopes 
199 
Oxyopes occidens Brady 
Map 1. 
Oxyopes occidens Brady, 1964, Bull. Mus. Comp Zool., 131 (13) :464, figs. 7, 
8, 23-26, 33, 34, $9. Male holotype from Sabino Pond, Sabino Canyon, 
Santa Catalina Mtns., Pima Co., Arizona, in the Museum of Compara- 
tive Zoology. 
Discussion. For figures, measurements, color descriptions, diag- 
nosis, notes on natural history, and collection records north of Mex- 
ico, see Brady ( 1964), pages 464-467. 
Distribution. Arizona, Baja California (Map 1). 
Record. MEXICO. Baja California. San Jose del Cabo, 1896, 
$ (NB). 
Oxyopes bifidus F.O.P. -Cambridge 
Figures 1, 2, 25-30, 55, 56, 78-81. Map 1. 
Oxyopes bifidus F.O.P.-Cambridge, 1902, Biologia Centrali-Americana, 
Arachnida, Araneidea, 2:344, pi. 32, figs. 20, 20a, $. Male holotype 
from Acapulco, Guerrero, Mexico, in British Museum (Natural His- 
tory), examined. Roewer, 1954, Katalog der Araneae, 2(a) :3 3 1 . 
Bonnet, 1958, Bibliographia Araneorum, 2(4):3225. 
Discussion. Oxyopes bifidus is one of the most common and wide- 
spread species of Oxyopes in Mexico and Central America. The 
epigyna of this species is remarkable for its variation in structure 
(Figs. 25-30). This variation is also characteristic of O. acleistus. 
a member 
of the 
same species 
group (see Brady, 
1964, 
figs. l3-20). : 
Measurements. 
Ten females and ten males. 
FEMALES: 
Mean 
Range 
Mean 
Range 
Clypeus 
.518 
.45-. 58 
Femur I 
2.42 
2. 1-2.8 
AME 
.343 
.30-.38 
Patella-Tibia I 
3.01 
2.7-3. 7 
ALE 
.625 
.5 5-.68 
Metatarsus I 
2.44 
2. 2-2. 8 
PLE 
1.148 
1.00-1.25 
Tarsus I 
.99 
.8-1.3 
PME 
.623 
.55-. 68 
Total Length I 
8.86 
7.8-10.4 ; 
Carapace 
Width 
1.78 
1. 6-2.0 
Carapace 
Patella-Tibia II 
2.72 
2.4-3. 1 
Length 
2.37 
2.1-2.7 
Patella-Tibia III 
2.06 
1. 7-2.4 
Total 
Patella-Tibia IV 
2.40 
2. 2-2. 8 
Length 
5.58 
4.8-6. 6 
Total Length IV 
8.05 
7.2-9.4 
