Pechham—Spiders of the Family Attidae. 249’ 
Myrmarvachne Marshallii sp. nov. 
Plate XXIX, figs. 6-6b. 
$. Length 6.5 mm. Length of cephalothorax 3 mm. Length 
of faloes 2.7 mm. Legs 4132. 
?. Length 6 mm. Legs 4132. 
The whole spider is black, covered with fine yellowish pubes¬ 
cence. There is a deep constriction in the cephalothorax be¬ 
tween the cephalic and thoracic parts, and a slighter one in 
the abdomen, near the anterior end. The female has two white 
rings on the abdomen, one in the constriction and one behind 
the middle. In the male the first leg has the femur, metatar¬ 
sus and tarsus dark, while the patella and tibia are light with 
a dark line on each side. The second leg is yellow with black 
lines along the sides, more distinct in front, than behind. The 
third leg has the coxa,, trochanter and femur black and the 
other joints brown, with faint lines. In the fourth leg the 
coxa and trochanter are white, the femur is black, and the other 
joints are brown. The male has the palpus black and the 
falces brown, long, and horizontal, with a long curved fang, 
which has a hook near the base. The teeth on the lower margin 
are short and small, while on the upper they are long and nu¬ 
merous. The upper surface is rugose. 
In the female the falces are short,, vertical, parallel, and of 
a light reddish color. The palpi are light brown and have the 
tarsi enlarged. The first and second legs are light yellow with 
black lines on their front faces. The third leg is dark as far 
as the end of the patella, the other parts being light. The 
fourth leg has the coxa, trochanter, and proximal end of patella 
light yellow, and the rest dark. 
We have a male and female and several immature specimens 
from Mashonaland, sent to us by Mr. Guy A. K. Marshall, for 
whom, we have named the species. 
In the genus Myrmarachne we have three males (Marshallii, 
solitarius, ichneumon) 7 and two females (Marshallii, ichneu¬ 
mon). These are distinguished as follows: Of the males,. 
Marshallii and ichneumon have at least seven teeth on the upper 
