DESCRIPTION OF GENERA AND SPECIES. 265 



No. 111. Eugnatha pallida (BANKS). Plate XXV, Figs. 10, 11. 



1892. Tetragnatha pallida, BANKS . . . Proceed. Acad. Nat. Sci., Phila., p. 51. 



1893. Eugnatha pallida, BANKS .... Jour. N. Y. Entom. Soc., i., p. 132. 



FEMALE: Total length, 11.5 mm.; abdomen, 9 mm. long, 2.3 mm. at the base, dimin- 

 ishing in some specimens to 1 mm. at the apex; cephalothorax, 3 mm. long, 1.5 mm. wide; 

 mandibles, 2.3 mm. long. 



CEPHALOTHORAX: Oval, squarely truncated at the base; fosse a triangular depression; 

 corselet grooves and cephalic suture distinct; caput elevated above level of corselet; color 

 brown, with yellow markings upon the caput, face, and sides, and slight grayish pubescence. 

 Sternum yellowish brown, raised in the middle, a depression between coxae-I and II, 

 scantily pubescent, with a line of long curved bristles along the concavely truncated base, 

 extending towards the labium ; the latter is roundly triangular, wide at the base, which is 

 of a brownish color, the tip being yellow; maxilla; more than twice the length of the 

 labium; widest at the tips, which are roundly truncated, pointed outward, slightly concave 

 on the margin ; the fangs when folded do not touch the maxillee. 



EYES: Ocular quad on a rounded eminence most prominent in front; the rear width 

 greatest and about equal to the length ; MF somewhat larger than MR, separated by about 

 or a little more than one diameter, MR separated by about two diameters. Side eyes upon 

 small tubercles about equal in size, smaller than MF, separated by a space about one quarter 

 greater than that which divides the middle group ; space between MR and MF about twice 

 the interspace of MF; the space between MR and SR somewhat less than that between MR. 



LEGS: 1, 2, 4, 3; uniform yellow in color, abundantly armed with -small aculeate 

 bristles, and well provided with long blackish spines. The palps are colored and armed as 

 the legs. The mandibles are long, strong, extended forward nearly horizontally from the 

 face, almost straight or but slightly concave upon the exterior; about ten teeth on the 

 superior claw furrow, of which two are on the apex of the mandible ; color yellow, with 

 long bristles, particularly upon the inner surface ; fang dark brown, glossy, evenly curved 

 on the exterior surface. 



ABDOMEN: About four times as long as wide; the dorsum slightly arched; in some 

 specimens thickened, in others of almost uniform width throughout, and with but little 

 curvature; dorsal surface beautifully reticulated, the skin in alcoholic specimens having a 

 metallic golden lustre; the dorsal pattern is a central median line, with a cruciform figure 

 near the base, and two curved longitudinal branches further down. The spinnerets are just 

 under the apical wall. The ventral pattern is a lighter band of reticulated yellow. The 

 epigynum is situated close up to the base, and is a simple arch without scapus. 



MALE: 10.3 mm. long, somewhat shorter and slighter in general form than the female, 

 but in color and pattern closely resembling her. The corselet grooves and cephalic suture 

 are less distinct; the midfront eyes are decidedly larger than the midrear; SF somewhat 

 smaller than SR. The legs are long, the first leg much longer relatively than the second ; 

 it is about eleven times the length of the cephalothorax. The mandibles are three to four 

 mm. long, straight upon the exterior surface, and but little curved on the interior, which is 

 marked by strong rows of long bristles; the teeth are small, those upon the interior furrow 

 numbering about nine, with two additional and larger ones on the apex ; a long spur curved 

 and widely bifid, or with a short tooth below the point, mark the upper and inner surface 

 near the apex. The fang is long and somewhat undulate towards the apex. The radial 

 joint of the palp is nearly twice as long as the cubital. The jaws are slightly inclined to 

 the face instead of being extended almost horizontally, as with the female. Banks says 

 that the outer tooth (spur) is not bifid. This characteristic should, I think, be modified as 

 above by speaking of the spur as "widely bifid," or at least with a toothlike projection 

 upon the side near the apex. 



DISTRIBUTION: My specimens are from New York, New Jersey, and Florida; Dr. Marx 

 has a specimen from Texas, thus indicating a distribution along the entire Atlantic and 

 Gulf Coasts. 



