138 The Rev. W. F. Johnson and Mr. G. H. Carpenter 
sions ; the colour is deep black in the centre, shading off 
to dark brown at the sides. 
The mesonotum and metanotum are each three-quarters 
as long as the pronotum, deep black, each with two lateral 
sintiate depressions. 
A central longitudinal suture is apparent on the dorsal 
aspect of all the thoracic and abdominal segments. 
The prothorax is chitinous beneath from the front 
margin to the insertion of the legs. In the meso- and 
metathorax, the sternite is reduced to a small sub- 
triangular median plate. 
Legs. The legs are of moderate length, the two hinder 
pairs as long as the breadth of the metathorax, the front 
pair rather shorter. The coxa is twice as long as broad, 
its outer surface bearing a row of strong sete. The 
trochanter is half as long as the coxa, thickened distally, 
bearing on its inner surface a double row of spines and a 
long tactile seta. The femur is slightly longer than the 
coxa, bearing spines along its inner margin (in double 
row), and around its thickened distal extremity. The 
tibia is two-thirds as long as the femur, slightly thickened 
distally, bearing a single external basal spine and a 
prominent subapical series. The tarsus is slightly 
shorter than the tibia, cylindrical, bearing a fine spine 
near the base, and two stout ones at apex; the two claws 
are equal in length, slightly curved and ending in a blunt 
point (Figs. 11, 12). 
Abdomen. The terga of segments 1—8 are similar in 
form, transverse with anterior and posterior ridges and 
lateral sinuate depressions; the tergum of the ninth 
segment is much narrower and shorter than the pre- 
ceding. ‘The pleurze of segments 1—8 are oblong-oval, 
that of segment 9 oblong. ‘There are seven ventral plates 
on each of the segments 1—7: a transverse hexagonal 
anterior plate, four small plates arranged transversely 
posterior thereto, the two centrals being subquadrate and 
the two laterals subtriangular, and a pair of lateral oval 
plates arranged longitudinally. The eighth segment has 
a single quadrate central plate, and the pair of lateral 
oval plates as the preceding segments. The ninth 
segment has only a single ventral plate (Fig. 9). The 
anal cylinder is about twice as long as its diameter or as 
the length of the ninth segment. The cerci are long and 
mobile, provided with numerous nodulose tubercles bear- 
