138 
Psyche 
[March 
of death. I now have in my collection specimens from the moun- 
tainous regions of Panama as well as from several locations in the 
Panama Canal Zone. I also have a male from Trinidad, W. I. and 
a male from Puerto Rico, W. I. The species has previously been 
reported from Bermuda and Cuba. The species seems to be the most 
abundant of any member of the genus from the region under con- 
sideration. Drawings are offered of specimens from Panama, Trini- 
dad, W. I. and Puerto Rico, W. I. 
Erigone digena sp. nov. 
Figures 17-23 
Holotype. The male holotype is from the Panama Canal Zone, 
Gatun, February 27, 1958. The name of the species is an arbitrary 
combination of letters. 
Description. Total length 1.69 mm. Carapace 0.88 mm long; 
nearly 0.64 mm wide; nearly 0.4 mm tall in cephalic region where 
it is tallest; posterior declivity beginning opposite second coxae is 
somewhat steeper than in E. antegona sp. nov. and E. bereta sp. nov. 
Eyes : eight as usual in the genus ; viewed from above, posterior row 
moderately recurved and anterior row more definitely so. Ratio of 
eyes AME : ALE : PME : PLE = nearly 5 : 6.5 : 6 : 6 (some 
variation noted among available paratypes) ; lateral eyes somewhat 
protuberant and PLE somewhat angular. AME separated from one 
another by about one third of their diameter and from ALE by about 
their radius. PME separated from one another by about two-thirds 
of their diameter and from PLE by about the same distance. Laterals 
contiguous to one another as usual. Height of clypeus nearly equal 
to eight-thirds of the diameter of AME. Central ocular quadrangle 
wider behind than in front in ratio of nearly 5 : 4 ; and about as 
wide behind as long. Chelicerae: essentially typical of males of the 
genus; teeth along lateral margin and near the fang groove essen- 
tially as shown in Figure 17. Promargin of fang groove apparently 
with four teeth and retromargin with three. Maxillae: with few 
very small cusps and each with a bristle; otherwise essentially typical 
of males of the genus. Lip : essentially typical of males of the genus. 
Sternum: moderately convex; almost as wide just behind first coxae 
as long; extended between fourth coxae which are separated by about 
two-thirds of their width. Legs: 1423 in order of length; tricho- 
bothria observed but not placed accurately. Palp : the trochanter has 
a ventral tooth; the femur has a series of small cusps on the ven- 
trolateral surface; the patella has a short apophysis near the distal 
