1941] 
Sumatran “Trilobite Larva ” 
29 
by Mjoberg as “No. 5” which he speaks of as the common 
lowland type in this portion of Borneo. It is much lighter 
in color, being a uniform light brown with the dorsal pro- 
tuberances and warts greatly reduced. The pronotum and 
abdominal tergites lack the warts completely and those of 
the meso- and metanotum are reduced to a single elongate, 
streak-like, smooth elevation midway between the median 
line and lateral margin, longer on the metanotum. The 
mesonotum is very wide, fully three times as broad as long 
and the metanotum is produced at each side into a very long, 
obtuse lobe. The lateral projections on the abdominal seg- 
ments are very long, curved evenly upwards and backwards 
and evenly attenuated from the base to the tip, with the 
basal one as usual much shorter. The anterior margin of 
the pronotum bears four prominent rounded or more or less 
tooth-like tubercles or projections separated by conspicuous 
emarginations. The specimens range in size to fully 45 mm. 
A description undoubtely of this form has been given by 
Bourgeois 6 and the preceding paragraph refers mainly to 
characters of use in differentiating it from other species. 
Captain Barnard’s Larva 
(Plate 3) 
This is a very striking form, similar in habitus to the 
Bornean species of which Mjoberg reared the female and 
later secured the male, Duliticola paradoxa Mjob. 7 It differs 
at once, however, in the presence of large shining tubercles 
on the disk of the three thoracic segments. The arrange- 
ment and size of these raised areas are the same as in the 
Sumatran species as are also the minute warts on the pos- 
terior margin of these segments, except that the latter are 
very minute. The mesonotum is slightly more than twice 
as wide as long. The abdominal tergites bear also pairs of 
minute warts at the posterior margins ; these are very dis- 
tinct, becoming smaller on each succeeding tergite and not 
visible at all beyond the fifth. The lateral processes of the 
abdomen are very strongly curved upwards and posteriorly, 
6 Bull. Entom. Soc. France, 1899, p. 59. 
7 This is apparently the form described at length, but not named by 
Hanitsch in 1900 (Journ. Roy. Asiatic Soc., Straits Br. No. 34, p. 78). 
