A REVISION OF THE PISAURIDAE OF THE UNITED STATES Al 
Labium and endites dark reddish brown, lighter distally. Epigynum 
with the median lobe convex, hemispherical, bordered behind by the 
lateral lobes which are broadly in contact on the middle line. 
Male (alcohol): length, 7.5mm to 12.5mm; legs (1-2)-4-3, 20- 
AORUO- MOAN S Ol, isy, Mer) AE Fol, its wakes, at 
Cephalothorax above much as in the female but with colors 
brighter and in greater contrast; submarginal, light bands distinct ; 
light patches on sides of head covered with short, white hairs. 
Chelicera yellowish white with a broad dark longitudinal stripe on 
the front. Anterior half of abdomen above dark brown to black 
sometimes bordered on the sides with dull yellow; median figure 
obscure; chevrons on posterior half of abdomen sometimes united 
and bordered by dull yellow; sides of abdomen gray, venter some- 
what lighter. Legs yellowish white with broken annulations; coxae 
yellow. Sternum margined with dusky, center yellow. ‘Tibia of pal- 
pus short; the external apophysis broad, concave internally, and 
armed at each distal corner with a sharp tooth; sometimes one or twe 
teeth between the lateral ones. The median apophysis of the bulb 
sharply angled at the middle of its length, basal half strongly swollen 
in the middle. 
Synonymy 
Dolomedes tenebrosus Hentz, Bost. Jour. Nat. Hist., 1843, 4:396, 
pl. 10, figs. 10-13 
olomedes tenebrosus Hentz, Reprint, Occ. Papers Bost. Nat. 
Hist., 2, 1875, p. 38, pl. 5, figs. 10-13 
Dolomedes tenebrosus, Marx, Proc. Nat. Mus., 1800, 12:566 
Dolomedes tenebrosus, Banks, Proc. Acad. Nat. Sci. Phila., 1892, 
44:73 
Dolomedes tenebrosus, Marx, Proc. Ent. Soc. Wash., 1802, 2:160 
Dolomedes tenebrosus, Fox, Proc. Ent. Soc. Wash., 1892, 2:260 
Dolomedes tenebrosus, Banks, Jour. N. Y. Ent. Soc., 1895, 3:91 
Dolomedes tenebrosus, Banks, Ent. News, 1895, 6:206 
Dolomedes tenebrosus, Slosson, Jour. N. Y. Ent. Soc., 1898, 6:248 
Dolomedes idoneus Montgomery, Proc. Acad. Nat. Sci. Phila., 
1902, 54:588-590, pl. 30, fig. 51 
Dolomedes idoneus Montgomery, Proc. Acad. Nat. Sci. Phila., 
1903, 55 :654 
- Dolomedes tenebrosus, MacGillivray and Houghton, Ent. News, 
1903, 14:262 
Dolomedes tenebrosus, Britcher, Proc. Onon. Acad. Sci., 1903, 
I :129 
an olomedesidoneus Montgomery, Proc. Acad. Nat. Sci. Phila., 1904, 
50 :319 
Dolomedes tenebrosus, Ruthven, Rep’t, State Board Geol. Surv. 
Mich., 1906, p. 100 
Dolomedes tenebrosus, Banks, Ind. Dep’t Geol. and Nat. Res. 
31st Ann. Rep’t, 1907, p. 743 
Dolomedes idoneus, Bryant, Occ. Papers Bost. Soc. Nat. Hist., 7, 
1908, p. 79 
Pee ie medes idoneus, Emerton, Trans. Conn. Acad., 1900, 14:211, pl. 
7, hig. 
Dolomedes vernalis Emerton, ibid, pp. 211-212, pl. 7, figs. 7, 7d 
