204 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
labium is compressed at the base, triangular at the tip, wider than long. The maxillee 
are gibbous, rounded upon the outer margin, inclined toward each other, rather longer than 
broad. The eyes, as in Epeira, have a wide space between the central and sidefront 
groups; but the intervening spaces are relatively greater, the sidefront being separated 
from the midfront by about four times their intervening space, the siderear from the mid- 
rear eyes by even a greater distance. Both rows are procuryed, the rear row the longer. 
The legs, in order of length, are 1, 2, 4, 3, the difference between 1, 2, and 4 being slight; 
the tibise are curved, as in Gasteracantha; the patella is wide, somewhat flattened upon 
the exterior surface; the ordinary spinous armature is wanting in the female, but the legs 
are clothed with rows of stout spinelike bristles. The abdomen is cylindrical-ovate or 
rectangular-ovate in form, about one-third longer than wide. The dorsal margins of the 
abdomen are characterized by a number of conical tubercles, of which the two forward ones 
in the typical species are thornlike, sharpened, and curved forward, resembling miniature 
cow’s horns. The dorsal apex is also tuberculated and overhangs the spinnerets, the 
yentral part of the body haying a somewhat conical form. ‘The male resembles the 
female in general form and pattern; fhe palps are short, the palpal bulb large, and 
the copulatory organs prominent, large, and complex. The tibie-I and II are armed with 
a few short spines. Leg-IV has a series of strong, long spines, arranged the entire length 
underneath; while the femora have a row of short, black, denticulate spines. The cephalo- 
thorax is not as highly peaked as in the female, nor the head as high. 
No. 59. Wagneria tauricornis (Camsricr). Plate XII, Figs. 1, 2. 
1889. Epeira tauricornis, Marx in litt. . Catalogue, p. 548. 
1892. Epeira tauricornis, CampripGe. . Biol. Centr. Amer. Aran., p. 44, vi., 2,35 viii. 1, 2. 
1892. Epeira tauricornis, Knyseruine . Spin. Amer., Epeir., p. 90, iv., 68. 
Frmate: Total length, 7.8 mm.; cephalothorax, 2.7 mm. long, 1.9 mm. wide; facial 
width, 1.3 mm.; abdomen, 4.5 mm. long, 3 mm. wide. 
CrrHALoTHorAx: Corselet rounded at the edges, high and peaked at the summit, 
descending abruptly to the truncated base; corselet grooves distinct ; cephalic suture marked 
so that the head is distinctly differenced from the corselet. Color brown to brownish 
black, caput dark brown, covered with hair; fosse a deep indentation; caput squarely 
truncate at the base, rising thence and arched to the vertex, whence it slopes to the face, 
which is broad and rather quadrate, well rounded on the forehead. Sternum cordate, 
squarely truncate at the base, where it is tufted with yellowish bristlelike hairs that are 
sparsely distributed along the margins; sternal cones distinct, flattened in the middle; color 
black to blackish brown. The labium is compressed at the base, yellow; maxille scarcely 
as wide as long, gibbous, yellow. (Fig. 1d.) 
Eyes: Ocular quad on a rounded and projecting eminence, more prominent before than 
behind; front somewhat wider than rear, the sides a little longer; MF but slightly, if any, 
larger than MR, and separated by 1.5 to 2 diameters; MR by about 1.3. Side eyes are on 
low tubercles; somewhat smaller than those of the middle*group. SF separated from MF 
by 1.5 the area of the latter, or about three times their intervening space; SR from MR by ~ 
even a greater distance. The clypeus height about 1.5 diameter MF; both rows are pro- 
curved, the rear the longer. 
Leas: Order, 1, 2, 4, 3; color yellow to yellowish brown, with dark apical and median 
annuli, with golden yellow bristles and hairs, with rows of stout spinous bristles on the 
inter surface, curved toward the apex, and almost comblike, on the metatarsi especially ; 
the ordinary spinous armature is otherwise wanting; patellee wide, somewhat flattened on 
the exterior surface; tibiee short and curved, as in Gasteracantha (Fig. le); palps colored 
and armed as the legs; mandibles rather short, strong, conical, wide at the base, covered 
rather evenly with short, yellow, bristlelike hairs. 
wee [Ven 
