DESCRIPTION OF GENERA AND SPECIES. 157 



ence. Should this resemblance prove to be identity, the distribution of the species would 

 be extended, in the United States, to the Rio Grande of Texas, and also into Arizona, 

 and its habitat become the semitropical and tropical parts of North America, including the 

 AVest Indies; jjrobably also the northernmost South American States. 



No. 15. Epeira carbonaria Keen, L. Plate V., Figs, l, 2. 



1SG9. Epeira carbonarin, Kocn, L. . . . Beitr. zur Kentn. den Arachn. Tyrols. Zeitschr. d. 



Ferdinandeums, p. 168. 



1874. Epeira carbonaria, Simon, E. . . Arachn. de France, i., 92. 



1875. Epeira ParkariUi, Thorell . . . Proc. Boston Soc. Nat. Hist., xvii., 490. 

 1884. Epeira carbonaria, Emeeton . . . N. E. Ep., p. .S15, pi. xxxiii., 18. 



1892. Epeira enrhonaria, Keyseri.ing . Spinnen Amerikas, Epeiridre, p. 204, tab. ix., l.'il. 



Female: Total length, 14 mm.; abdomen, 10.4 mm. long and 7 mm. wide; cephalo- 

 thorax, 5 mm. long by 4 mm. wide; width at the face, 1.8 mm. 



Cepiialothorax : A rounded oval; fosse deep; cephalic suture distinct; head but lit- 

 tle depressed at the base, rounding to the face ; coi-selet brown, with yellow marginal stripe 

 covered with rather long grayish white hairs, bristlelike at base and along sides of the 

 caput. Head yellow, well covered with long, stifl' gray hairs. Sternum shield shape, brown, 

 heavily covered with long, gray bristlelike haii-s; labium rather narrow, subtriangular, less 

 than half the height of maxillie, which are apparently somewhat wider than long, rounded, 

 and yellow like the labium and surrounding coxje. 



Legs: 1, 2, 4, 3, as follows: 18, 1G.2, 15.4, 10.7 mm.; stout, strongly annulated, with 

 dark brown rings at tips and middle of tibia and metatarsus ; a brown hue diffused over 

 upper surface of femora ; strongly armored with long gray hairs, bristles, and numerous 

 long black spines; palps colored and armed as legs; mandibles strong, curved at bases, yel- 

 low tipped with brown ; sligbtlj' pubescent. 



Eyes: Ocular quad on a high rounded eminence, which is almost a square, but wider 

 in front than behind ; MR oval and decidedly larger than MF ; the latter separated by 

 about 1.5 to 2 diameters; MR about one diameter. Side eyes on tubercles, scarcely contin- 

 gent ; SR larger than SF, which are separated from MF by at least two and a half limes 

 the space that divides the latter. Clypeus high, its margin removed from !MF by three 

 and a half to four times a diameter of the latter, or considerably more than intervening 

 space between MF and SF ; front row rccurvc<l, roar row somewhat i^rocurved. The face 

 around the central eminence is thickly covered with stiff gray l)ristles which project over 

 the margin. 



Abddme.n: A long oval, the dorsal field yellow interspersed with brown; the folium is 

 outlined by thicker semicircular patches of grayish white Ijristlelike hairs, which heavily 

 cover the entire organ. In the centre is a white herring bone marking with at least five 

 angular projections and indentations symmetrically arranged on either side. This herring 

 bone pattern is chiefly emphasized by the gray hairs, the field beneath being yellow mar- 

 gined with brown. From the middle of the folium downward are arranged symmetrically 

 on either side rows of three circular spots, like buttons. The folium diminishes towards 

 the ape-x ; sides yellow, intermingled with brown amidst gray hairs ; spinnerets at the foot 

 of the apical wall which very slightly overhangs them ; color brown, with lighter hue at 

 the bases. The venter is covered w ith gray hairs over a brownish field, with yellow spots 

 on either side heavily covered with gray hairs. The epigynum (Fig. lb, Ic) is long and 

 triangular, wide at the base and diminishing sharply to a point, upon which is a rounded 

 dot. It is hoUo.wed upon the lower anterior surface and is covered with rows of stiff 

 white hairs. 



jNIai.e (Fig. 2) : In color and marking closely resembles the female ; length (two speci- 

 mens), 9 mm., 8 mm. Cephalothorax a longer oval than the female. The legs differ in 

 lacking the decided brown annuli of the female ; are heavily armed with spines and 



