ARANEIDEA. 
Males. 
A. Tibia i. with the two inner spines towards the base elongated and clavate. 
Femur iii. much incrassate at the apex; patella iti, prolonged and 
attenuate at the apex above. [Palpal bulb with two spines starting 
close together from its posterior margin, and encircling the inner 
margin of the bulb, terminating at its apex (the two spines appearing 
as one); tibial spur long, stout, sinuous, and bluntly pointed and 
ineurved at the apex. Femur i. not white on the inner side and with a 
thick fringe of clavate hairs on the outer side.] . 
B. Tibia i. without elongate clavate inner spines. Femur iii. not incrassate 
at the apex; patella iii. not produced at the apex. 
a. Palpal bulb with two spines starting from points widely separate—the 
inner one geniculate, starting from near the centre, with a short 
basal straight piece, and a rather short curving spine set at right 
angles to it; the outer one starting from near the anterior part of 
the external margin, not geniculate, but very long, and encircling the 
whole bulb, its filiform apex lying in a very fine groove on the end 
of the tarsal sheath. Tibial spur of the palpus long, broad, obliquely 
truncate at the apex. Femuri. with no fringe of clavate hairs on 
the outside, but a thin fringe of long white hairs above, and like 
femur ii. entirely clothed on the inner side with cobalt-white scales 
6. Palpal bulb with two stout spines—the inner one the stoutest, not 
c. Palpal bulb with two spines—the inner one stout, the outer slender ; the 
geniculate, springing from the outer posterior part of the margin, 
curving round, and the outer one terminating in a long filiform 
point, which lies in a groove beneath the apex of the tarsal sheath. 
Tibial spur of the palpus long, stout, slightly sinuous, bluntly 
pointed at the apex, not squarely truncate. Femur i. without a 
fringe either of clavate or white hairs . 
former not geniculate, springing from the inner side of the bulb, 
curving round ; the inner spine terminating just beyond the apex of 
the bulb, the outer spine filiform and lying in a groove beneath the 
apex of the tarsal sheath. Tibial spur of the palpus very broad. 
Femur, patella, and tibia i. fringed with hairs 
Females. 
A. Posterior lobes of vulva converging behind. 
1. Abdomen with an indistinct pale marginal band, sometimes broken into 
two more or less distinct oblique pale lines on each side; and a 
central posterior “.-shaped pale spot (or a series of 2 or 8 disconnected 
chevrons), followed by an elongate pale dash on each side; sometimes 
all these coalesce to form a single elongate pale blotch. Vulva 
consisting of a short transverse rim, with an elongate semicircular 
mexicanus, Peckh. 
viridipes, Hentz. 
perfidus, sp. 0. 
paratus, Peckh. 
