1975] 
Brady — Oxyopes 
225 
O. tridens and O. pardus. Oxyopes cornutus appears to be most 
closely related to O. felinus in male palpal structure and female 
epigynal structure. It can, however, be readily separated from O. 
felinus by comparing the male palpi (compare Figs. 104, 105 with 
Figs. 102, 103) and female epigyna (compare Figs. 43, 44 with 
Figs. 39, 40). 
Natural History. Oxyopes cornutus is not as well represented in 
collections as O. salticus or O. bifidus. It is apparently not often 
taken by sweeping vegetation. A number of these spiders were ob- 
served as they were running and jumping over a rock slide in Zopi- 
lote Canyon, 10 mi N of Zumpango del Rio. This was an old rock 
slide with sparse, grassy vegetation growing among the rock rubble. 
The over-all background color of this substrate was gray, and the 
black and white pattern of O. cornutus blended well with this par- 
ticular habitat. The spiders became conspicuous only when they 
moved. Specimens from the rock slide were collected by hand since 
there was not enough vegetation to employ a sweep net. 
The occurrence of Oxyopes cornutus in a rather dry, rocky habitat 
with little vegetation fits well with what is known of the biology of 
the tridens species group so far as I’ve observed. Members of this 
group appear to have an ecological niche quite distinct from mem- 
bers of the acleistus group which occur in considerable numbers in 
grassy and herbaceous vegetation. 
Distribution. Colima, Guerrero, and Morelos (Map 2). 
Records. Colima. 8 mi. SW of Colima, 10 May 1963, cf cf : 
499 :oo (WJG, WI) ; 7 mi. SE of Manzanillo, 16 July 1972, cf 
(AJ). Guerrero. Tierra Colorado, cf (HHS), 22-23 Jvily 1972, 
3cf cf •*$ ? :iooo (ARB) ; 10 mi. N of Zumpango del Rio, 23 July 
1972, cf cf 9 9 :4oo (ARB, AJ). Morelos. Acatlipa, 10 Aug. 1946, 
99 (CG,FB). 
Figs. 67-68. Oxyopes cornutus F.O.P.-Cambridge, male from 8 mi. SW 
of Colima, Colima, 10 May 1963. 67. Face view. 68. Dorsal view. 
Figs. 69-70. Oxyopes felinus Brady, male from SW of Acaponeta, 15 
May 1963. 69. Face view. 70. Dorsal view. 
Figs. 71-72. Oxyopes ocelot new species, male holotype from W of Lake 
Sayula, Jalisco, 3 Aug. 1956. 71. Face view. 72. Dorsal view. 
Figs. 73-75. Oxyopes salticus Hentz, males from Veracruz, Veracruz, 30 
July 1972. 73. Face view. 74. Dorsal view. 75. Face view, indicating 
variation in color pattern. 
Figs. 76-77. Oxyopes flavus Banks, male from Tierra Colorado, Guer- 
rero, 23 July 1972. 76. Face view. 77. Dorsal view. 
