216 J. H. Emerton, 
The cephalothorax is shaped as in guimquenotata, a little narrowed 
in front and not much elongated. In some individuals the cephalo- 
thorax is unusually narrowed behind, so that the widest part is in 
front of the middle. The cephalothorax is a little less than 2 mm. 
long. The abdomen is oval without any constriction in the middle, 
sometimes in females twice as long as it is wide, in males not 
much longer than the cephalothorax. 
The color of the cephalothorax varies from light brown to black, 
covered with light shining hairs not very close together. The first 
and second legs have the femora dark like the cephalothorax, and 
the other joints light yellow. The third and fourth legs are brown, 
the femora darker. The sternum is dark brown and the front coxe 
are the same color; the other coxz are partly light colored; the 
fourth pair almost entirely light yellow. The abdomen is covered 
with dark green iridescent scales, with a narrow white band across 
tho middle, and in some individuals another transverse white band 
near the front end, but this is oftener broken into two short white 
streaks at the side. 
The epigynum has.a large opening in front, covered by a wide 
rim with a dark colored edge, Fig. 3d. 
The male palpi have no process on the tibia. The palpal organ 
is flatter than it is in /ongipes and quinquenotata, but has a hook 
in the middle as in those species. 
Castaneira lineata, new. (Plate X, figures 5, 5a, 5b.) 
This small species has the general appearance of a Micaria. It 
measures 6 mm. in length, the cephalothorax nearly 3 mm. The 
cephalothorax is twice as long as wide, widest in the middle and 
narrower behind than in front. It is shghtly indented at the sides 
between the second and third, and between the third and fourth 
legs, Fig. 5. The head is three-fourths as wide as the thorax, 
wider than in the other species, and the eyes are farther apart. 
The upper eyes are equidistant and cover three-fifths of the width 
of the head. The sternum is narrowed and pointed behind, more 
than it is in the other species. The abdomen is a little longer than 
the cephalothorax, widest behind and a little constricted in the 
middle. The pedicel is as long as wide and can be seen from 
above between cephalothorax and abdomen. 
The color of the cephalothorax is dull orange asin Micaria longipes. 
The femora are marked with two longitudinal dark stripes as in 
M. longipes and C. bivittata. The other joints of the legs are orange 
