DESCRIPTION OF GENERA AND SPECIES. a ipal 
brown on the sides, and a brighter yellow band along the margin; dorsum slightly pubes- 
cent, except at the caput, which is well covered with yellowish gray hairs. Sternum shield 
shape, about as wide as long, covered with yellowish hairs, brown, with a broad yellow 
median band. Labium and maxille light yellow, and as in Epeira. 
Eyrs: Ocular quad on a central prominence, wider in front than behind, the side 
about as long as front; eyes about equal in size; MR amber yellow, MF blackish; MF 
separated by about 1.5 diameter; MR by less than 1 diameter; side eyes on slight tubercles, 
barely contingent; SF somewhat larger than SR; MF separated from SF by about or less 
than their area, and set close to clypeus margin, less than one diameter MF therefrom. 
Front row recurved, the longer rear row slightly procuryed. 
Leas: 1, 2, 4, 3; stout, well provided with bristles and hairs, and rather sparingly with 
blackish spines; the color is yellow, with brown annuli at tips of joints and middle of 
tibia and metatarsus. Palps colored and armed as legs; mandibles conical, tapering to 
widely separated tips; the base rounded and with a brown chitinous cog. 
AxspomMEN: Triangular ovate, almost as wide as long, widest at the base; carried nearly 
perpendicularly ; dorsum arched to distal spinnerets. Color yellow, with a cretaceous folial 
pattern, resembling rudely a butterfly, with outspread wings, on the base, and the body 
extending backward along the median line. This figure is margined with black, and irreg- 
ular lines of black pass from the dorsum along the sides toward the venter, leaving the 
sides marked by a broken band of yellow. Four brownish lines pass from the middle of the 
dorsum longitudinally to the apex, and spots of black are symmetrically arranged on either 
side receding to the spinnerets. In front the abdomen is marked by two or three rows of 
black circular spots; the whole surface is strongly reticulated. The venter has a broad 
patch of white or whitish yellow, marked in the middle by a lateral band of blackish 
brown; the epigynum (Fig. 8a, 8b) is marked by a decided scapus. 
Maur: Closely resembles female in color and markings; the inner apical half of 
tibia-II provided with a double row of strong clasping spines, and somewhat thicker than 
tibia-I. The color, in some examples at least, tends to be lighter than in the female, and 
the markings upon the abdomen are more cretaceous. 
Disrrreution: My collection places this species from New England southward along the 
Atlantic seaboard, and westward through Pennsylvania and Ohio, as far northwest as Wis- 
consin (Professor Peckham); along the Pacific Coast at Santa Cruz, Cal. (Mr. Harford), 
and San Diego (Mrs. Eigenmann and Mrs. Smith). It will probably be found distributed 
throughout the entire United States. 
No. 30. Epeira labyrinthea Henrz. Plate VII, Figs. 10, 11, 12. 
1847. Lpeira labyrinthea, Hentz. . . . J. B.S. v., 471, pl. xxxi., 3. 
1875. Epeira labyrinthea, Hentz. . . . Sp. U.S. p. 111, pl. xiii, 3. 
1884. Epeira labyrinthea, Emerton . . N. E. Ep., p. 314, pl. xxxiv., 8. 
1889. Hpeira labyrinthea, McCook . . . Amer. Spiders and their Spinningwork. 
Fremate: The specimens vary much in size, from the large examples on the Pacific 
Coast to those which inhabit the Atlantic Coast and interior; I describe from the latter. 
Total length, 5.5 (8) mm.; abdomen, 3.5 (5.5) mm. long, 2.5 (6) mm. wide; cephalothorax, 
2.3 (3) mm. long, 2 mm. (2.5) mm. wide. <A large female from the Pacific Coast measures 
7 mm. long, of which the abdomen is 4.5 mm. long by 4 mm. wide; the cephalothorax, 
3 mm. long, by 2.3 mm. wide in the middle, narrowing at the face to one mm. 
CrPHALoTHoRAX: Blackish brown, with lighter yellow patches on corselet and face; 
the margin of lighter color; the caput, especially around the eye space, covered with long. 
white, bristlelike hairs; sternum shield shape, pointed at the apex, but little longer than 
broad, elevated in the middle, traversed by a wide yellow band, the margins of which are 
brown; the surface covered with hairs and bristles, and broken by slight sternal cones ; 
the lip more than half the length of the maxillee, which are rounded and as wide as or 
wider than long; colored as the sternum, except lighter tips. 
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