1925 ] Mystery of “ Trilobite Larvce ” Definitely Solved 143 
Measurements'. Greatest length 80 min. 
Greatest width 18 min. 
Locality: Mt. Murad, N. Sarawak. Altitude 6500 feet. 
Adult 9 and d unknown! 
No. 4. (Plate III Fig. 4). 
Resembling No. 3; cinnamon colored like it, but the post- 
erior prothoracic angles more rounded and the meso- and meta- 
thorax differently shaped, the rows of tubercles not so pro- 
nounced and between them a dark colored fascia. Otherwise 
like No. 3 and probably a species of the same genus. 
Measurements: Greatest length 45 min. (if full grown?) 
Greatest width 16 min. 
Locality: Mt. Dulit, N. Sarawak. 
Altitude 3500-4000 feet. 
Adult $ and d unknown! 
No. 5. (Plate III Fig. 5). 
The ordinary common type from the lowland frequently 
mentioned and figured by various authors. 
Body strongly depressed, thin as a leaf, light brown, thoracic 
segments strongly dilated, with a streak-like mark on each side. 
Measurements: Greatest length 40 min. 
Greatest width 25 min. 
Locality: Kuching and surroundings, Ramboengan, Lundu, 
South Sarawak. Especially common during the rainy season 
(Nov. -March). 
Adult 9 and d unknown! 
Represents another distinct genus! 
No. 6. (Plate III Fig. 6). 
The type figured and briefly described by Westwood. Of 
much more elongate and parallel-sided type than the previous 
ones. 
Measurements: Greatest length 50-55 min. 
Greatest width 13 min. 
