216 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 
Genus CERCIDIA, Torey, 1869. 
In Cercidia the cephalothorax is oval, the head elevated and somewhat quadrate. 
The sternum is somewhat longer than wide, and marked with distinct sternal cones. 
The labium and maxillz are as in Epeira. The eyes are substantially as in Epeira, 
except that the siderear eye is larger. The fourth leg is longest of all. The abdomen 
is a regular oval, but is distinguished from Epeira, Zilla, and Singa by the glossy hard 
skin. The individuals of. Cercidian species are small. The typical American species is C, 
funebris. The cocoon is a small egg shaped sac.* 
) 
No. 70. Cercidia funebris Krysrriine. Plate XIX, Fig. 9, 9a-e. 
1889. Cercidia funebris, Marx in litt... . Catalogue, p. 540 (Krysrriine in Titt.). 
1892. Cercidia funebris, Keyseruina . . Spinnen Amerikas, Hpeir., p. 37, ii., 32, 32a. 
Femarte: Total length, 4 mm.; abdomen, 3 mm. long by 2.5 mm. wide across the 
shoulders; cephalothorax, 1.75 mm. long by 1.8 mm. wide. The general colors in front, dark 
brown to blackish ; the abdomen glossy black, with longitudinal stripes of eretaceous or yellow. 
CrrnatoTHorRAx: A rounded oval; head prominent; cephalic suture strongly marked ; 
fosse entirely overhung by the abdomen; caput high; color blackish brown. Sternum shield 
shape, somewhat longer than wide, but rather rounded at the apex; sternal cones distinct; 
flat in the middle; slightly pubescent; color jet black. Labium triangular, half the height 
of the maxilla, which are as broad as long; cut square at the tips, and, like the labium, 
glossy black, in contrast with the yellow coxee. 
Eyrs: Eye space black or blackish brown; ocular quad on a rounded eminence; man- 
ifestly wider in front than behind, and the sides longest; MF decidedly smaller than MR, 
separated by about one and a half to two diameters, while MR are separated by about or a 
little more than one; side eyes on tubercles, subequal, contingent, removed from MF by 
a space equal to the area of the latter, and at least half greater than the intervening space 
of MF; front eye row recurved, the longer rear row procuryed; clypeus two and a half to 
three diameters MF in height. 
Lees: 4,1, 2, 3, as follows: 4.4, 4.2, 3.9, 2.6 mm.; color dark brown, lighter at the 
bases of the femora, the cox underneath yellow; stout rows of strong, short, yellow 
bristles both above and beneath along the joints, and apparently without spines; palps 
colored and armed as legs; mandibles strong, conical, parallel. 
Aspomen: An oval longer than broad; narrower at the apex than at the base; the 
dorsum arched; the skin hard and bright, glossy; the folium a black to blackish brown 
figure, undulating at the margin, and a broad interrupted ribbon of cretaceous or yellow 
along the median band, which is divided in the middle by an irregular thread of blackish 
brown color, except upon the base. A broad waving band of yellow passes longitudinally 
along each side beyond the folium; and below that again on the sides are broad bands of 
glossy brown, which terminate in a narrow longitudinal strip of cretaceous that borders the 
blackish quadrilateral venter. This black ventral band quite encompasses the spinnerets, 
which are of a light color, and also the epigynum. The latter organ (Fig. 9b) appears to 
be a crescent shaped cup, with the opening toward the front, and without a distinct scapus. 
In the figure, however, upon the plate the artist has represented a short scapus, widening 
into a spoon shaped atriolum. 
Disrripution: Crescent City, Florida. (Marx Collection.) 
Genus ARGIOPE, Savieny anp Aupourn, 1825. 
Argiope is distinguished by a cephalothorax which is flattened upon the summit of 
the corselet, giving this organ a comparatively low and weak appearance. The caput also 
is flattened along the entire length, and placed upon, or very nearly upon, a level with the 
* Thorell, ‘On Buropean Spiders,” page 59. 
