458 
W.A. Shear 
Figures 5-9 Hesperopilio mainae n. gen., n. sp., i. 5, chelicera, mesal view; 6, leg 1; 7, leg 2; 8, leg 3; 9, leg 4. Scale line 
= 0.3 mm for Figure 5, 0.40 mm for Figures 6-9. 
mm long, with large subapical tooth, row of 
subequal smaller teeth on blade. 
Palpus (Figure 3; lengths of articles given in Table 
1) with trochanter robust, subquadrate, bearing 
three setae on ventral surface, mesal seta arising 
from prominent tubercle. Femur slightly sinuous, 
with row of six macrosetae on ventral surface of 
basal half; two small setae on mesal surface near 
distal end. Patella as long as femur, densely setose, 
drawn out mesoapically into large, globose lobe; 
ventrally with row of five macrosetae. Tibia 
reduced, subglobular, mesally with dense patch of 
about 20 small setae. Tarsus slightly longer than 
wide, subequal in length to tibia, with few dorsal 
setae, prominent curved claw lacking teeth. 
Legs (Figures 6-9) in order of length 2:4:3:1; 
lengths of articles given in Table 1. Legs 1, 3 and 4 
with 9 tarsal articles, leg 2 with 14. 
Penis (Figure 4) with broad basal division 
strengthened ventrally with Y-shaped 
sclerotization, dorsally with single sclerotized bar, 
sharply bent posteriad at articulation with penis 
Table 1 Lengths of appendage articles of holotype 
Hesperopilio mainae 
TR 
FEM 
PAT 
TIB 
MTAR 
TAR 
palpus 
0.15 
0.34 
0.34 
0.11 
_ 
0.08 
leg 1 
0.12 
0.48 
0.22 
0.34 
0.44 
0.88 
leg 2 
0.14 
1.40 
0.26 
0.86 
1.02 
1.56 
leg 3 
0.10 
0.46 
0.18 
0.32 
0.56 
0.94 
leg 4 
0.12 
0.72 
0.22 
0.46 
0.94 
1.26 
shaft; shaft broad at base, narrowing to slightly less 
than half basal width. Gians sinuous, acute, 
tapering, with membranous inflated region at base. 
Color light brown dorsally, darker on carapace 
around eyemound, with metallic highlights; paired 
white dots on each abdominal segment; palpi and 
chelicerae yellowish; legs dark brown, lighter 
distally. 
Female 
As described for male, but 1.6 mm long, 1.0 mm 
wide. Palpus (Figure 10) with trochanter bearing 
distinct ventral setose knob; femur with series of 
seven proximoventral setae, distomesal setose lobe 
at articulation with patella; patella lacking distal 
lobe, with five ventral setae, numerous setae on 
mesal surface; tibia subglobose, heavily setose; 
tarsus much reduced, with few setae and small 
claw. Ovipositor (Figure 11) with 12 darkly 
pigmented rings, distal nine with six setae each; 
labia with two series of six setae, distinct apical 
sense organs. 
Distribution 
All specimens were taken in pitfall traps. The Mt 
Lindsay locality is about 40 km northwest of 
Torbay Head, while the Bluff Knoll sites are 100 
km north-northeast. This indicates a fairly general 
distribution for the species in the area. 
Etymology 
It is my great pleasure to name this species for 
Barbara York Main, the collector of the holotype, 
