ACH AHA.—ARGYRODES, . 401 
The two species recorded from Central America may be known by the following 
characters :— 
a. Apex of palpal bulb rounded, with a short, truncate, projecting lamina, 
having a short black spine lying beneathit . . . . . . =. . . crocea, O. P.-Cambr. 
b, Apex of palpal bulb narrowed into a truncate slightly bifid termination. mendax, O. P.-Cambr. 
1, Achza crocea, (Tab. XX XVII. figg. 30, 304, 3.) : 
Achea crocea, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 210, t. 26. figg. 11, 
ll a-e (¢)’. 
Type, ¢, in coll. Godman & Salvin. Total length 2 millim. 
Hab. GuatTEmata, Cubilguitz (Sarg 1). 
2. Achza mendax. (Tab. XXXVII. figg. 31, 81a, 3.) 
Achea mendax, O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i, p. 294, t. 39. figg. 7, 
7a-e(d)’. 
Type, ¢, in coll. Godman & Salvin. Total length 2 millim. 
Hab. Guatemaua, Coban (Sarg '). 
ARGYRODES. 
Argyrodes, E, Simon, Hist. Nat. Araign, i. p. 253 (1864). 
Type -A. epeire, E. Simon, =A. argyrodes (Walck.). Mediterranean Region. 
The spiders belonging to this genus are well known to most collectors. They are 
found abundantly in the webs of various species of Nephila and Argyope, where they 
live amongst the confused tangle of threads, hanging like minute silver globules, the 
females making their small characteristic wine-glass-shaped brown cocoons which are 
hung up by the stem. 
It is difficult to separate the species of Argyrodes from those of Rhomphea, if, indeed, 
the two genera do not run together. 
The tibie of the first pair of legs are shorter than the femora and longer than the 
protarsi. The central posterior eyes are less than one diameter apart and are not 
adjacent to the laterals, as in Khomphewa. The colulus is very distinct and the tarsal 
comb present on the fourth pair of legs. Figures of the typical European species, 
A. argyrodes (Walck.), are added for comparison (Tab. X XXVIII. figg. 9, 9 a-d, ¢ ; 
10, ¢ ). 
The species known to me from Central America may be recognized by the following 
characters :— | 
Males. 
A. The four central eyes situated on apical portion of the pos- 
terior lobe of the cephalic region ; the lateral pair on each’ 
side being three or four diameters removed from the base of 
the fissure. 
BIOL. CENTR.-AMER., Arachn. Aran., Vol. II., October 1902. 3 FL 
