194 
Psyche 
[June 
palpi (compare figs. 70, 71 and figs. 68, 69 of Brady, 1964) ; (4) tri- 
dens and panther have color patterns (compare figs. 62, 63 of Brady, 
1964 with figs. 5, 6 of Brady, 1969 and Figs. 15, 16) and epigyna 
alike (compare figs. 53-55 of Brady, 1964 with figs. 16, 17 of Brady, 
1969 and Figs. 45, 46). It is possible that panther is the female of 
pardus. 
Also ( 1 ) ocelot , cornutus, and felinus have predominant black 
and white color patterns, but they lack prominent tibial apophyses. 
Oxyopes felinus has a small knob on the tibial segment (Figs. 102, 
103), (2) the male palpi (Figs. 100-105), as well as the epigyna 
and internal genitalia (Figs. 39-44) of these three species are much 
alike. Oxyopes \ocelot is the most distinctive of the three. 
Color patterns in Oxyopes seem to be a conservative feature and 
are useful in determining relationships. It should be pointed out, 
however, that color is often altered by scraping off hair during 
handling and to :a lesser extent by preservation in alcohol. Also, one 
needs an adequate sample of specimens to determine the color pat- 
tern norm, because of individual variation within a population and 
geographic variation within the species. The structure and arrange- 
ment of male palpal sclerites and apophyses as well as external and 
internal structure of the female genitalia are the most reliable cri- 
teria for determining species relationships. Because of a need for 
more specimens from certain critical areas in Mexico and Central 
America the proposed dendrograms must be considered strictly tenta- 
tive as based on the available material. 
cougar lynx tridens pardus panther ocelot cornutus felinus 
Diagram 2. 
