190 AMERICAN SPIDERS AND THEIR SPINNINGWORK. 



marked ; color yellowish brown, darker at the fosse, and with four stripes of brown ui)on 

 the caput. The caput is about as high as the corselet at its base, but is depressed at its 

 face, which is yellow and slightly pubescent; the head, like the corselet, is glossy. The 

 sternum is but little longer than broad, heart shaped, blackish brown, with sternal cones, 

 with tufts of long bristlelike hairs. Labium short, semicircular, about one-third the height 

 of the maxillte, which are gibbous, rather longer than wide. 



Eyes: Ocular quad elevated only in front; the rear wider than the front, and the sides 

 longer than either ; eyes are about equal in size ; IMF separated by less than one diameter, 

 while MR are separated by about one diameter. Side eyes are contingent; placed on a 

 black patcli, with a slight tubercle. The space between SF and MF is noticeably greater 

 than that between MF, and is little greater than the area of SF, and about equals the space 

 between SR and MR; front row recurved, rear row slightly longer and procurved ; clypeus 

 lieight about 1.5 diameter MF. 



Legs: 1, 2, 4, 3; relatively long and thin, narrowing much toward the feet; color 

 yellow, with slight brownish annnli at the joints. Tlie leg armature is rather sparse ; long 

 aculeate spines are scantily distributed on the femora and tibia. The antennse are marked 

 and colored as the legs. Mandibles conical, parallel, but little separated at the tips. 



Abdomen : Oval, somewhat wider at the base than the apex ; slight, rounded shoulder 

 humps ; the dorsum arched ; color shining cretaceous or yellowish ; the folial margin drawn 

 in black or blackish brown, and irregularly undulating, with a median cretaceous herring- 

 bone pattern, which blends with the cretaceous color on the front. Branching longitudinal 

 lines pass from near the base to the spinnerets, which are distal. An irregular band of 

 cretaceous yellow, which, however, is sometimes greenish, marks the sides, and beyond this 

 is a mottled band of black and brown. The ventral pattern is a long blackish band, which 

 includes the spinnerets, flanked on either side by a yellowish ribbon, which passes around 

 the spinnerets in interrupted patches. The epigynum is without seapus, and might be 

 described as a simple short scoop, whose convexity is directed toward the spinnerets. 



Male: Fig. 6. In general form and marking resembles the female. Length, o mm.; 

 legs long; uniform brownish yellow, sparsely pubescent, a few spinous bristles underneath 

 femora and tibia; about three rows of long, rather slight spines on femora and tibia, also 

 on the inside of metatarsus-I a row of four spines; no special clasping spines or thickening 

 on tibia-IL The palp (Fig. 6a) has a well rounded dark brown digital joint almost as long 

 as the cubital and humeral ; the femoral joint is as long as the three terminal ones. The 

 basal processes of the digital joint are much specialized. The mandibles are rather stout 

 and widely separated at the tips ; the sternum shield shape, wide at the base, narrowing 

 at the apex, somewhat longer than wide, with strong sternal cones before coxse-II, III ; 

 color blackish brown, with a lighter shade or yellowish in the middle ; labium subtriangular, 

 about one-half the length of the maxillae, which are decidedly longer than wide, and about 

 the same width throughout. 



Distribution : Wisconsin, male and female, sent by Professor Peckham. Dr. INIarx has 

 sent me specimens from Biscayne Bay, Fla. These widely separated points would indicate 

 a general distribution over tlie ]Middle United States. 



No. 48. Epeira nephiloides Cambridge. Plate XIV, Figs. 5, (i; PI. XXII, Figs. 3, 3a-c. 

 1889. Epeira nephiloides, Cambridge . . Biol. Cent Amer., Aran., p. 32, vii., 1, 2. 



Female: Total length, 10.5 mm. ; cephalothorax, 4.5 mm. long, 3.75 mm. wide, 2 mm. 

 at the face ; abdomen, 6.5 mm. long, 4 mm. wide across the base, narrowing to 2 mm. at 

 the apex. 



Cephalothorax : Cordate, truncated and indented at the base ; corselet edges rounded, 

 flat on the summit; the fosse semicircular; corselet grooves sufficiently distinct; cephalic 

 suture distinct; color (in alcohol) dull yellow, with streakings of brown from the corselet 

 along middle of caput; slightly pubescent; a few long gray hairs at the caput base, which 

 is lowly arched upon a level with the corselet, and slightly depressed at the face. Sternum 



