202 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
diameter; side eyes on tubercles; tufts of strong gray bristles, like eyebrows, behind them; 
SF about equal in size to MR; SR decidedly smaller than SF, and not quite contingent; 
MF separated from SF by about 1.3 to 1.5 their area; MR from SR 2.3 their alignment. 
The front row scarcely procurved, rear row procuryed and longer; long, gray bristles mark 
the margin of the clypeus, which is about 1.5 diameter of MF in height. 
Leas: 1, 2, 4,3; the fourth leg scarcely as strong and long relatively as in Epeira; 
color yellow, with bright rose tints on the femora-I, II, intermingled with orange hues; 
annuli at joints, and lighter color median annuli underneath tibia and metatarsus; well 
clothed with long, gray bristles and hairs, and with numerous long, light colored spines, 
with brownish bases; the hairs on the feet and metatarsus are strong and _ bristlelike, and 
are curved outward; palps colored and armored as the legs; mandibles conical, arched at 
the bases, which are provided with gray bristles; color yellow, diffused with orange brown 
at the tips. 
Appomen: Subtriangular, slightly overhangs the cephalothorax, broad at the base, 
slightly tapering towards the apex, flat on the dorsum; spinnerets beneath the apical wall; 
color grayish yellow, marked by lateral stripes on the side, and punctuated by dots of 
brownish color on the dorsum. he median line is strongly characterized by an inter- 
rupted band, consisting of three parts, extending about two-thirds of the length ; its upper 
section is rounded, and has projections at either end, the central part is rectangular, and 
the third division is a round spot; the median is marked by a few spots and lines. The 
ventral pattern is black, an irregular quadrilateral, margined by a rather narrow and 
reticulated yellow band. The epigynum is bright yellow and dark brown, with a remark- 
ably long scapus, broad at the base and tapering to a point, the length extending almost 
from the insertion to base of the spinnerets. Although the head of this species is more 
depressed than in the typical Verrucosa and the spinous armature is stronger, in both 
these particulars resembling Epeira, yet other characters seem to justify placing it in this 
genus, 
Disrrisution: Fort Yuma, Arizona. (Marx Collection.) 
Genus KAIRA Campriper, 1889. 
In Kaira the cephalothorax is triangular ovate, widest near the base, sharply 
shelving to the crest, where the corselet is highest, thence sloping forward with consider- 
able inclination toward the face, the caput thus being decidedly depressed. The sternum 
is longer than wide, and the labium wider than long, as are also the maxille. The rear 
eyes of the ocular quad are little elevated, are less than the front; the relative spaces 
between the side eyes and the middle group are as in Epeira, as is the curvature of the 
rows, the front being recurved and the rear procuryed. The clypeus is of moderate height, 
but the high elevation of the quad separates the midfront well from the margin thereof. 
The legs are especially distinguished by closely set rows of short, stout, spinous bristles, 
_ curved towards the apex, and which are especially numerous on the exterior surface of the 
metatarsus. This joint is particularly stubby, and all the legs are stout. The extremely 
hirsute character of the legs appears upon the entire body, for stout, spinelike bristles are 
spread thickly upon the surface of the corselet, and, though somewhat shorter, upon the 
abdomen. The abdomen is broadly shield shape, high, and thick at the base, slightly 
narrowing to the spinnerets, which are distal. The base is distinguished by two castellated 
prominences, which are subdivided into a number of conical protuberances. 
\ 
x 
No. 58. Kaira alba (Hentz). Plate XII, Figs. 3, 3a-c. 
1850. Epeira alba, Hentz. ...°... J.B. 8: vi., 205 Id., Sp. U. 8., p: 122, xiv, 7. 
* 1884. Hpeira alba, Knyspruinc . . . . Neu. Spinn. Amer., vi., p. 531, vi., 29. 
1890. Kaira alba, Knysertinc .. . . Spinn. Amerik., Epeir., iy., p. 64, iii., 50. 
