398 REV. O. P. CAMBRIDGE ON [June l, 
side, diminishing in length towards the spinners; the abdomen is 
thinly clothed with short hairs. 
The female resembles the male in colours and markings; but the 
occiput wants the bristly elevation so characteristic of the male. 
Adults of both sexes of this fine and very interesting Spider, found 
on pine and juniper trees, were received from Mr. J. H. Emerton, by 
whom they were captured at Beverley, Swampscott, Boston, Massa- 
chusetts, U. S. A., in May 1874. 
ERIGONE PROVIDA, sp.n. (Plate XLVI. fig. 5.) 
Adult female, length rather more than 1 line. 
The cephalothorax, falces, and sternum of this Spider are of a rather 
dark yellow-brown colour; the legs are brightish orange-yellow, the 
palpi, maxillee, and labium dull yellow, suffused with brown; and 
the abdomen blackish yellow-brown, tinged with olive. 
The form of the cephalothoraz is of the ordinary type ; the profile- 
line from the eyes to the thoracic junction almost level, with a slight 
dip or hollow close behind the occiput; the normal grooves and in- 
dentations are distinctly but not very strongly marked; and the 
height of the clypeus, which is a little impressed just below the eyes, 
is equal to half that of the facial space. 
The eyes are on black spots in the usual position, of tolerable size ; 
and although closely grouped together, they occupy the whole 
width of the fore part of the caput; those of the hinder row are 
equidistant from each other, being separated by an interval not much, 
if any, greater than half the diameter of one of the central pair; 
those of each lateral pair (of which the foremost is the largest of the 
eight) are obliquely placed on aslight tubercle, aud contiguous to each 
other ; the foremost one is also contiguous (or as nearly so as pos- 
sible) to the fore central eye nearest to it, the fore centrals also being 
contiguous to each other, and the smallest of the eight; the two 
pairs of lateral eyes thus form, with the fore central pair, a continu- 
ous curved line; and the interval between each of these last and the 
hind central eye nearest to it is equal to the diameter of the latter. 
The degs are moderate in length and strength; their relative 
length appeared to be 4, 1, 2, 3; and they are furnished with hairs 
and slender bristles. 
The falces are strong and of tolerable length, a little inclined to- 
wards the labium, and (as far as could be ascertained, though not 
with absolute certainty) armed with small teeth on the inner mar- 
gin towards the extremity. 
The palpi, maxillz, labium, and sternum present no unusual or 
distinctive feature in form or structure. 
The abdomen is of rather an elongate oval form, and not very con- 
vex above, nor projecting much over the base of the cephalothorax ; 
it is of a dull greenish-black yellow-brown hue, marked (like many 
others) with pale lines and spots on the upperside, probably not 
visible except through spirit of wine ; the form of the genital aper- 
ture is simple but characteristic. 
Two examples of this species, which is nearly allied to #. cornu- 
