178 
Leg 3 (pl.V fig. 4). The third pair of legs is a little shorter 
than the second pair, chiefly the femur. The trochanters are pro- 
vided with fan hairs below and along the sides. Trochanter I is 
provided with a pointed hair on each side at the base of the tro- 
chanter II, the latter is provided with one or two fan hairs above. 
The sides of the femurs are provided with comparatively few fan 
hairs. Above there are fan hairs and a few pointed hairs. The 
patella, tibia and metatarsus are similar to those of the second pair 
of legs with the exception of the longer. fan hairs of the metatarsus. 
There is no cloven hair near the tip of the tarsus. 
Leg 4 (pl. V fig. 5 & 6). The sides of the two trochanters 
are below provided with a great number of fan hairs. Near the 
basis of the trochanter II there is a pointed hair. The trochanter 
II is provided with some few dorsal fan hairs. The inner side of 
the femur is provided with fan hairs all over, arranged in seven 
rows; the outer side has only fan hairs above and below, while 
there is a distal upper row of pointed hairs and behind these a 
few sense hairs (s). The patella has a median dorsal row of pointed 
hairs and marginal ones of fan hairs. The sides bear many fan 
hairs. The tibia (d) bears the usual dorsal, median row and a 
marginal inner and outer row of fan hairs, while the sides have 
inwardly two rows of fan hairs and outwardly an upper row of fan 
hairs and a lower one of pointed hairs and fan hairs. The meta- 
tarsus is provided above with proximal sense hairs (s) and several 
distal pointed hairs, and on each side of these it bears few but 
very long fan hairs. The sides have a single inner and outer row 
of fan hairs; below there are pointed hairs. 
Sexual organs. The distance between the median paired glands 
of the male and the anus is five times as long as their diameter. 
The organs are described pag. 168 (pl. VI fig. 18). 
Colour (pl. IV fig, 2). The head and first thoracieal tergite is 
yellowish with lilac spots as described below. The most conspicuous 
spot is a more or less triangular one, broad at the back and placed 
in the middle of the head. On both sides of this spot the ocular 
