398 ARANEIDEA. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith+); Panama, Bugaba (Champion *). 
The palpal organs of E. putus, 3, are precisely similar to those of L. biyibbosus, 3. 
2, Episinus cognatus. (Tab. XX XVII. figg. 26, 26, ¢; 27, 2.) 
Episinus cognatus,O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 109, t. 15. figg. 2, 
2a-e(d)’. 
Type, d, in coll. Godman & Salvin. Total length 4:5 millim. 
- Hab. Mexico, Teapa in Tabasco (H. H. Smith '). 
This species is exceedingly closely allied to E. putus, but there are distinct differences, 
very hard to observe, except under a high power, in the form of the spurs at the apex 
of the palpal organs. The two species are sure to be confused together, unless a very 
careful examination be made, for the organs are in general character precisely alike. 
SPINTHARUS. 
Spintharus, Hentz, Bost. Journ. Nat. Hist. vi. p. 283 (1850). 
irype S. flavidus, Hentz. N. America. 
The species included under this genus differ from those placed under Argyrodes, 
Rhomphea, and Ariamnes in having no broad transverse groove on the carapace 
behind; the central anterior eyes are also much smaller than the laterals, and the 
central eye-quadrangle is narrower in front. The central posterior eyes are at least 
two diameters apart. The colulus is very minute, its existence being indicated by the 
presence of two hairs or bristles on its apex ; and the tarsal comb on the fourth pair 
of legs is very distinct. 
A single species only, which I identify as S. flavidus, Hentz, occurs in the collection 
before me. 
1. Spintharus flavidus. (Tab. XXXVII. fige. 28, 3; 29, 29 a-d, 2.) 
Spintharus flavidus, Hentz, Bost. Journ. Nat. Hist. vi. p. 284, t. 10. fig. 8 (2) (1850) '; Spid. 
U.S. (ed. Burgess), p. 156, t. 17. fig. 8 (9)*; Keyserl. Spinn. Amer., Therid. i. p. 176, t. 8. 
_figg. 107, 107 a-d (2), 107 e-g (¢)*; Simon, P. Z.S. 1894, p. 521 (?)*; Banks, Proc. 
Calif. Acad. Sci. (3) i. p. 287°; Emerton, Trans. Conn. Acad. Sci. vi. p. 28, t. 5. fig. 7 (?)°. 
Spintharus elongatus, Keyserl. loc. cit. p. 178, t. 8. figg. 108, 1084 (?)’. 
Spintharus lineatus,O. P.-Cambr. Biol. Centr.-Amer., Arachn. Aran. i. p. 190, t. 23. figg. 11, 
lla-f(d)’. 
Spintharus affinis, O. P.-Cambr. loc. cit. p. 190, t. 24. figg. 2, 2a-f(¢)°. 
Type, 2, of S. flavidus, non-extant; of S. elongatus, 9, in coll. Univ. Warsaw; of S. lineatus, 3, and 
S. affinis, §, in coll. Godman & Salvin. Total length of S. flavidus, 3 3°25, 9 4:5 millim. 
Hab. Nortu America!*36, Lower California °.—Mexico, Omilteme (H. H. Smith) ; 
/GuateMALa, Chichochoc §, Coban® (Sarg); Panama, Bugaha (Champion).—Pxru ? ; 
ANTILLES, St. Vincent 4. 
