Mfllo-Leitaq - Sobre os Bothriuridas Sul-Americanos 
IOQ 
a median anterior V of pointed granules; tergite VII with four keels 
with pointed granules. Esternites sinooth, V without median longitu¬ 
dinal ridges. Tail under surface of segment, I to IV rounded, smooth, 
presenting only little lateral granulous keels at the apieai half; under 
surface of segment V dense ly granulous, with lateral keels, complete and 
presenting a transverse file of strong printed granulations, similar to 
than of B. cVOrbignye; at the distai area there are some strong 
median granules; upper surface of segments I to V with median and 
lateral keels complete, with strong pointed granules and lateral inters 
pace at I granulous. Caudal vesicle very granulous with a dcep lateral 
g roo ve, 
Palps: femur with inner surface granulous; tibia and cheia 
smooth; movable digit with 7 'tecth. Combs with 26 tecth. 
Bothriurus díspar sp. n. 
o” — 35 mm, 
Carapace and tcrgites uniformly dark fulvous; the tail líghter. 
Esternites chestnut brown. Legs yellowish brown. Chelicers and pedi- 
palps dark chestnut brown. 
Carapace and tergites very densely granulous, the last tergite 
(VIí) without longitudinal keels. Esternites smooth; the last onc (V) 
with two median keels, without granules. 
Tail: dorsal median and lateral keels complete; the spaces 
between them densely granulated, with strong roundish granules; 
ventral surface of segments I to IV with median keels, and very stron- 
gly.granulous; under surface of segment V strongly and irregularly, 
granulous, the granules of lateral keels scarcely stronger than th o 
others. Vesicle with strong granules, dorsalíy and irregularly disposed 
and dorsalíy excavated. 
Pedipalps densely granulous (more than in other species). 
cheia twelve wider than tibia, with the movable digit íonger than tha 
hand, and with 5 teech. 
Comb with only 7 large tecth and a basal unarmed spacc. 
A key is presented for the eight species of Brachistosternus 
one of whieh is possibly new (B, pcntheri) and anothcr for the subs- 
pecies of Thestylus glasioui, of whieh one is new: — 
Thestylus glasioui signátus subsp. n. ; 
$ — 38 mm. 
Carapace blackish brown with, some irregular fulvous markiugs. 
Abdominal tergites with a narrow longitudinal marginal mark 
on each side, a row of 3 os 4 srnall circular spots on the anterior! 
