PETRUNICEVITCH, AMERICAN SPIDERS 
223 
ordine IV—I—III—II; metatarsi postici tibia cum patella brevier; tarsi cuncti scopu- 
lati; unguis inferior muticus; mamillse anteriores plus duplo longiores et robustiores 
quam mamillse posteriores. 
Typus: M. brasiliensis. 
32. Moenkhausiana brasiliensis sp. nov. 
Plate XXII, Figs. 26, 27, 28, 29. 
Female .— Total length, 10.0; cephalothorax, 5.0 long, 3.7 broad; sternum and 
lip longer than broad; legs in order 4132. 
Legs 
Femur 
Pat. + Tib. 
Metatar. 
Tarsus 
Total 
I 
3.8 
4-4 
2.8 
1.5 
12.5 
II 
3.5 
4.3 
2.8 
1.5 
12.1 
III 
3.4 
4.0 
3.2 
1.8 
12.4 
IV 
4.2 \ 
5.9 
4.4 
2.3 
16.8 
Arrangement of spines on legs same as in male; all 8 tarsi with scopulse;' superior 
claws with a series of 7 teeth, inferior claw smooth; trochanters with a deep notch; 
palpal claw with 4 teeth; color and other characters as in male; arrangement of 
spines on palpus a little different, as follows: femur, EPS, 1 row of 3 spines and 2 
additional distal spines; patella, PRS, 1 spine, RES, 1 spine; tibia, PRS, 2 spines; 
tarso-metatarsus, PRS, 3 bristles; epigynum resembles that of pirata. 
Male .— Total length, 10.0; cephalothorax, 5.0 long, 3.8 broad between second 
and third legs; abdomen, 5.0 long; clypeus, 0.22; entire eye group, 1.35 long; an¬ 
terior row of eyes, 0.90 wide, second row, 1.00, third row, 1.25; diameter of eyes: 
AM, 0.20, AL, 0.16, PM, 0.35, PL, 0.30; distance between inside edges of AM, 0.13, 
between the outside edge of AM and inside edge of AL, 0.08, between inside edges of 
PM, 0.30, between inside edges of PL (eyes of third row), 0.80, sternum, 2.5 long, 
1.9 broad between second and third pair of coxae; lip longer than broad; both mar¬ 
gins of chelae with three teeth; teeth of pro-margin unequal, middle tooth strongest; 
teeth of retro-margin are to all appearance equal; forehead low and broad, gradually 
sloping toward sides; trochanters of all legs with deep notch; fourth metatarsi 
shorter than fourth tibia and patella; all tarsi with scopulse; superior claws with a 
series of 7 teeth; inferior claw smooth; tarso-metatarsus of palpus with 2 smooth 
claws; legs in order 4132. 
Legs 
Femur 
Pat. + Tib. 
Metatar. 
Tarsus 
Total 
I 
3.8 
4.8 
3.1 
1.8 
13.5 
II 
3.5 
4.3 
3.0 
1.8 
12.6 
III 
3.8 
4.3 
3.0 
2.0 
13.1 
IV 
4.3 
5.8 
4.2 
2.2 
16.5 
These measurements show that both sexes are remarkably similar as to the total 
size of their legs. The coloration being also the same in both sexes, it is only the 
structure of the palpus that betrays the sex. Such similarity of sexes is rather un¬ 
usual in Lycosidse. 
Spines on male palpus: femur EPS, 1 row of 3 spines and 2 additional distal 
spines; patella, PRS, 1 bristle. 
