PE TR UN KEY IT CH, AMERICAN SPIDERS 
221 
Same arrangement of spines on all legs; all tarsi with three claws; third claw 
simple, slightly curved; superior claws with six teeth each, the two basal teeth 
small and almost fused. 
P atria: Brazil. 
Two females were collected on grass in a swamp at Poco Grande, Brazil. 
One of them had an egg sack with one side flat and the other side rounded, 
light brown in color. 
Collection: A. Petrunkevitch. 
LYCOSID.E. 
29. Lycosa avida Walckenaer, Ins. Apt., vol. i. 1837. 
= L. erratica Hentz. Journ. Bost. Soc. Nat. Hist., vol. iv, p. 388, pi. 18, 
fig. 8. 1844. 
= L. communis Em. Trans. Conn. Acad. Sci., vol. vi, p. 489, pi. 47, fig. 6. 
1885. 
The synonymy of this species was given some time ago by Nathan Banks. 
Walckenaer’s description corresponds fairly well with that of Emerton. 
This is especially true of his description of the color of the venter so character¬ 
istic in typical specimens. The great variability of this species makes it 
possible that Walckenaer’s L. mordax, or at least some of its varieties, is 
also a synonym of avida, in which case the name mordax would have pre¬ 
ference. But the remark on page 344 that the eyes of mordax remind one of 
Dolomedes makes such synonymy doubtful. 
30. Lycosanychthemera Bertkau, Verz. d. Bras. Ar., p. 68, pi. 2, fig. 21. 
18S0. 
Plate XXII, Fig. 36. 
Bertkau has described the female only. I have in my collection two 
females with cocoons and two males of this beautiful species. They were 
collected by Dr. fMoenkhaus at Ypiranga, Brazil. 
Female .— Total, including mandibles, 29.5; cephalothorax, 12.2 long, 9.0 broad 
between second and third pair of legs; abdomen, 14 long; legs in order 4123. 
Legs 
Femur 
Pat. + Tib. 
Metatar. 
Tarsus 
Total 
I 
9.6 
11.7 
7.3 
4.3 
32.9 
II 
9.0 
11.0 
6.8 
4.2 
31.0 
III 
8.0 
9.0 
6.3 
3.8 
27.1 
IV 
10.5 
12.5 
10.4 
5.0 
38.4 
