78 
AN EXPEDITION TO MOUNT KINA BAKU. 
-ternally, and its length is only about that of prothorax and 
mesothorax together. The width of the first segment is two- 
fifths that of the metathorax, that of the last segment one-fifth. 
The prothorax bears dorsally two tubercles, about equidistant 
from the middle line and the side, and slightly nearer the pos- 
terior than the anterior margin. The mesothorax bears two pairs 
of tubercles, an anterior and a posterior, the posterior pair being 
situated near the centre of each half of the segment, and the 
anterior pair at equal distance from the posterior pair and the 
anterior margin of the segment, and nearer the middle line ; the 
metathorax also has two pairs of tubercles, placed like those of 
the mesothorax. The first eight abdominal segments bear three 
pairs of spines each, viz. one pair of lateral ones (shown in Gahan’s 
figure), and two pairs of ventral ones ; the last segment has 
lateral spines only. 
Colour : the thoracic tubercles are black, and the tips of the 
ventral spines are yellowish. The rest of the body is uniformly 
deep chesfnut brown. 
Size : length of the largest Singapore specimen 41 mm. ; of 
the largest Perak specimen 49 mm. ; greatest width (metathorax) : 
21 mm. in both cases. 
Hab; mountainous jungle of Singapore and Malay Penin- 
sula. Pare. 
The Kina Balu larva differs from this one (1) in the propor- 
tions of its dimensions, the thorax being narrower, and the abdo- 
men longer and broader ; (2) in the position of the thoracic 
tubercles, which are always placed in one row and close to the 
posterior margin of the segments; (.4) in the presence of ab- 
dominal tubercles, viz., two in each of the first eight abdominal seg- 
ments, also placed close to the posterior margin of the seg- 
ments ; (4) in the structure of the antenna^, which, although of 
the same size and shape, and having also a narrow chitinous ring 
round their base, have the crown-like chitinous structure at their 
distal end divided, not into four, but into 12 narrow finger-like 
lobes; (5) its colour, being of a lighter chestnut brown, with an 
orange line along' the sides of the thorax, the tubercles and feet 
also being orange. The number of thoracic tubercles and ab- 
dominal spines is, however, the same in the two species. 
No luminosity was observed in either species, although I 
