46 
Psyche 
[March-June 
Diagnosis. Sosippus janus is similar to S. mimus in color pattern, 
but unlike that species, it has 4-4 cheliceral teeth and differs from 
S. mimus in epigynal structure (compare Figs. 14-18 with Figs. I- 
9). The epigynum of S. janus is like that of S. floridanus (compare 
Figs. 14-18 with Figs. 10-13), but with consistent differences be- 
tween the two species. In addition, based on present information, 
S. janus is restricted to mesic habitats such as that surrounding Lake 
Lochloosa in Figure 43, while S. floridanus occurs in drier and more 
open habitats such as the Pine and Palmetto community in Figure 
42. Thus, the color pattern of S. janus , the structure of the epigy- 
num, and its habitat indicate reproductive isolation from S. floridanus 
and S. mimus. 
Records. Florida. Alachua Co.: 18 Apr. 1935 900, 13 Apr. 
1950 ? (H. K. Wallace); NW shore of Lake Lochloosa, 11 Apr. 
1968 5 cTc ?:$9 : 00', 10 June 1968 18 9 9 :90c (A. R. Brady, J. 
Toothaker; 2.7 mi W of Melrose, 13 June 1962 cf cf : 9 : 400 (A. 
R. Brady). Levy Co.: 20 Apr. 1935 cT 9 9 00 (G. V. Hyn). Marion 
Co.: Kerr Park near Lake Kerr 9 (H. K. Wallace). Putnam Co.: 
2 May 1947 9 °> 2-3 June J 947 9 °° (H. K. Wallace). 
Sosippus placidus sp. n. 
Figures 25-27, 39. Map 1. 
Sosippus mimus, — Brady, 1962, in part: figs. 13, 14, not S. mimus Cham- 
berlin. 
Holotype. Female from 6 mi. S of Lake Placid, Highlands 
Co., Florida, 12 June 1968 (A. R. Brady, J. Toothaker) in the 
Museum of Comparative Zoology. The species is named after the 
type locality. 
Discussion. Two immature specimens and a single mature female 
of S. placidus were examined and described under S. mimus in 1962. 
The presence of a single mature female did not warrant description 
of a new species at that time. Because of the 3-3 pattern of pos- 
terior cheliceral teeth and their color pattern (in alcohol) these speci- 
mens were thought to represent a southern population of S. mimus. 
The uniqueness of the single female’s epigynum prompted a drawing 
of the female genitalia and these are illustrated in figures 13 and 
14 of Brady (1962). Additional evidence now clearly indicates that 
this southern Florida population of Sosippus near Lake Placid rep- 
resents a distinct species. 
Measurements : Total body length of three females 15.0-17.6 
mm. Carapace width 5. 3-6. 3 mm, carapace length 7.7-9. 1 mm. 
Width of anterior eye row 1.63-1.88 mm. Posterior ocular quad- 
