A REVISION OF THE PISAURIDAE OF THE UNITED STATES 39 
brosus; sides of abdomen usually uniform reddish brown but 
sometimes mottled; venter a little lighter. Legs brown above with 
soft yellowish brown pubescence, more or less annulate on the femora 
and tibiae ; below, lighter, scopulate on metatarsi and tarsi. Sternum 
yellowish or reddish brown, often lighter mesally. Labiwm and 
endites dark reddish brown, lighter distally. Epigynum with the 
median lobe broadly convex; lateral lobes heavily chitinized on inner 
margins and scarcely meeting on middle line behind (pl. 19, fig. 2). 
Male (alcohol) : length 8mm; legs 4-1-2-3, 24.5-24-23.5-20.25mm ; 
(BUly) MS}, TaN, Te TOL.) NO) sk, Al 
Body color and pattern much as in the female but brighter and 
more distinct. Cephalothorax with an indistinct submarginal band 
of white hair in patches; sides of head with a conspicuous patch of 
white hairs asin the maleof D. tenebrosus. Eyes surrounded 
with black and placed as in female except that posterior median are 
as large as the posterior lateral and separated from them by their 
diameter. Clypeus dusky with a median, vertical, light stripe; width 
of clypeus, about twice the diameter of an anterior median eye. 
Chelicera yellow with a diagonal, dark stripe down the front. An- 
terior half of abdomen above dark brown with a median, lanceolate, 
light stripe, posteriorly with a series of chevrons, dark brown on the 
lighter ground; venter yellowish. Legs proportionally longer and 
more slender than in female; yellowish, blotched irregularly with 
blackish; coxae immaculate. Sternum yellow with gray border; 
Labium yellow tinged with gray. Endites pale yellow. Palpus: 
the bulb resembles that of D. tenebrosus but is proportionally 
longer and more slender. The median apophysis (which in 
D. tenebrosus is sharply bent at the middle of its length 
and has the basal part greatly swollen) is bent at a right angle and 
the basal part is only slightly enlarged (pl. 10, fig. 1). 
Remarks. The relation of this species to Dolomedes tene- 
brosus Hentz is evidenced not alone by size and general appear- 
ance but by structure of the sexual organs. Although the differ- 
ences in the structure of these organs in the two species are not 
striking, they are constant and readily discernible and must be con- 
sidered of specific value. 
Habits. This species and Dolomedes tenebrosus were 
both collected under similar conditions on Billy’s island, Okefinokee 
swamp, Georgia and no observations were made that would indicate 
striking differences in habit. They were found on herbage and the 
prostrate trunks of trees and not usually in such close proximity 
tOomwater) as in the case’ of DWolomedes albineu's and 
Dromore dies) \tyy vit om). 
