230 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
CrpHatotHorax: A rounded oval, almost as broad as long; corselet highest in the 
centre, sloping sharply behind from the caput to the face; corselet grooves not distinct; 
cephalic suture marked, thus sharply delineating the caput; fosse, a longitudinal pit; color 
orange yellow, darker on the centre of the caput to the face, which is blackish. Sternum 
shield shaped, manifestly longer than wide; sternal cones well marked, slightly pubescent; 
color orange yellow to yellow, like the surrounding cox; labium subtriangular, widest at 
the base; maxille as wide as long; rather obtusely triangular at the tip, and, like the 
labium, yellow in color, with darker shades at the base. 
Eyes: Ocular quad on a blackish eminence, wider in front than behind, the sides 
somewhat longer than front; MF somewhat larger than MR, and separated by a little more 
than one diameter; MR by not more than a radius; SR on slight tubercles; SF longer than 
SR, and separated by about a diameter of the latter, the dividing space being greater than 
that between SR. SF removed from MF by a space but little greater than that which 
separates the latter; SR removed from MR by a space manifestly greater than that which 
separates SF and MF. Front row recurved, rear row slightly procurved, or aligned; clypeus 
height about one diameter MF. 
Leas: 1, 2, 4,3; stout; yellow, with slight tinge of orange; the tips of the joints 
annulated with brown; the armature is more decided than with many species of Singa, the 
bristles passing into light, long, yellowish spines. The palps are colored as the legs; the 
maxillze conical, strong, brownish yellow color, as the sternum; curved at the base, but not 
extending beyond the eyes, which, howeyer, project slightly over the face. 
Aspomen: A short oval, thickest at the base, and diminishing somewhat toward the 
apex; the entire dorsal field is a reticulated cretaceous color, with an indistinct marginal 
band, which is strongest on the front, and which continues along the side. <A black 
irregular line extends along the median, with branches to the dark impressed dots, which 
are increased to four at and along the apex. The sides are yellowish white, merging into 
brown, the whole beautifully reticulated. The ventral pattern a quadrilateral patch of 
yellowish or testaceous color, extending to the spinnerets, which are light brown. The 
epigynum (Fig. 1c) has a short spooned scapus, very wide at the tip, extending to the 
margin of the atriolum, leaving the portulse well displayed on either side. 
Disrrisution: Biscayne Bay, Florida; District of Columbia, where it was taken in 
June by Dr. Marx, to whom I am indebted for the single specimen here described. I have 
adopted the name suggested by him, which was given in honor of one of his lady. friends. 
No. 82. Singa Keyserlingi, new species. Plate XIX, Figs. 2, 2a-c. 
1889. Singa rubella, Marx....... Catalogue, p. 549 (Hpeira rubella, Hrnvz). 
1893. Singa rubella, Knyseruina . . . . Spinn. Amerik. Epeir., p. 284, xiv., 209. 
Femare: Total length, 5.6 mm.; cephalothorax, 2-- mm. long, 1.5 mm. median width ; 
at the face, nearly 1 mm.; abdomen, 4 mm. long, 2 mm. broad. Dr. Marx in his Catalogue 
considers this species identical with Hentz’s Epeira rubella, Sp. U. 8., page 120, pl. 31, Fig. 
22; but I find it impossible to agree with this opinion. The eyes are not unlike, and the 
broad, median, longitudinal band which traverses the abdomen at least suggests the folial 
stripe of this species. But apart from difference in general form, the characters of the 
legs, and especially of the maxille, in Hentz’s drawings are so wholly unlike those of the 
specimens in hand that they cannot be attributed to-the same species. I have, therefore, 
felt it necessary to propose a new name. 
CrpHALorHorAx: Oval, corselet rather high, sloping behind; base of caput raised 
above level of corselet, but sloping to the face; fosse a lateral pit; corselet grooves suffi- 
ciently distinct; cephalic suture decided, giving the head a marked delineation; color 
reddish brown; skin glossy, with slight pubescence; the caput a blackish brown to blackish, 
smooth, glossy, a little pubescence. Sternum shield shaped; somewhat longer than broad, 
with sternal cones before; cut square in front; a broad, yellow, median band, with a margin 
of blackish brown; slightly pubescent. Labium triangular, color dark brown, less than half 
the height of maxillee; maxillee as wide as, or wider than, long; squarish at the tip. 
—— ee 
