1904.] NATURAL SCIENCES OF PHILADELPHIA. 317 



with its fellow of the opposite side it forms nearly a circle, its indistinct 

 posterior end joining the median band anterior to the middle and at 

 the point where a pair of small elongate black spots are apposed to 

 the median line. On each side of the thoracal portion are three sub- 

 marginal, rather broad and always distinct yellow marks which are 

 placed obliquely. The extreme margin is black, and there are reticular 

 black lines radiating from the dorsal groove. Sternum blackish with a 

 yellow median band. Abdomen above greenish-brown, patterned dis- 

 tinctly with yellow as follows: There is a narrow median orange band, 

 pointed at each end, which extends caudad not quite to the middle, 

 from which arises on each side three obhque yellow lines, one from its 

 posterior end, one (the longest) from its middle, and from its anterior 

 end one which passes like the others latero-caudad and then bends at an 

 angle to join the median band where the middle line joins it. On the 

 posterior half of the dorsum are 4 transverse yellow bands, each of the 

 shape of a W, the first of which is broadest and the first and second 

 most distinct. The sides are greenish-brown, the venter paler greenish 

 or yellowish. Chelicera black, labium and maxillm reddish-brown with 

 yellow ends. Legs above more or less distinctly ringed with yellow 

 and reddish-brown, with a number of alternating rings on the femora, 

 patellae brownish, tibiae yellow at the middle and brown at the ends, 

 metatarsi dark at the middle and yellow at the ends, tarsi yellow proxi- 

 mally and brown distally ; below the annulations are not as distinct as 

 above, the femora finely mottled with greenish-brown and yellow, the 

 coxae yellow and lighter than the sternum. Pal-pi like the legs. 



Color of Male (specimen from North Carolina, in alcohol). — Cephalo- 

 thorax with the same pattern as in the ? , but with yellowish-brown in 

 place of dark brown. Abdomen like the 9 , but the yellow lines edged 

 with black. Mouth parts yellow. Legs pale yellow without annula- 

 tions, the distal ends of the tibiae, metatarsi and tarsi black. The pal 

 pus yellow, tibial apophysis and dorsal proximal portion of tarsus 

 black. 



Comparisons. — This may possibly be the same as D. scriptus of Hentz, 

 but that species is hardly recognizable from Hentz's brief description 

 and poor figure. It is nearly related to D. urinator Hentz (cf.). 



Dolomedes urinator Hentz. 



Dolomedes urinator Hentz, 1841. 

 Dolomedes tenebrosus Hentz, Emerton, 1885. 

 Dolomedes tenebrosus Hentz, Stone, 1890. 

 Dolomedes urinator Hentz, Montgomery, 1902. 



(Numerous 9 ? from Massachusetts, Pennsylvania, New Jersey, and 

 Austin, Texas; 1 d^ from Massachusetts.) 



