86 
Sl. 
82. 
86, 
87. 
88. 
89. 
90, 
ole 
92. 
AN EXPEDITION TO MOUNT BATU LAWI. 
Taias undatus, But. 
Salindong, June 9th and 12th. Rather a rare Pierime in 
Sarawak, though less scarce in the Limbang district than else- 
where. Confined to Borneo. 
Catophaga plana, Butl. 
Kuala Madalam, Limbang River, May 11th. A common 
Pierine. Also found in Malay Peninsula and Sumatra. 
Catophaga nero, Fab. 
Limbang River, May 11th and 14th. Also occurs in Java. 
Catophaga flavius, Gr. Smith. 
Limbang, May, and Salindong, June. Both these red 
Pierines were often seen up the Limbang. Originally des- 
cribed from N. E. Borneo. 
Catophaga cardena, Hew. 
One from Mt. Selinguid, alt. 4,850 ft., May 31st. A 
typical mountain species. Also occurs in Malay Peninsula and 
Sumatra. 
Huphina hespera, Butl. 
‘T'wo males from Salindong, June 9th, and two females 
from the same place June 11th and 12th. A common species 
in Sarawak. Confined to Borneo. 
Hebomoia borneensis, Wall. 
Salindong, June 12th. A common species. 
Troides brookeanus, Wall. 
Fairly common in the Madihit hills and generally up the 
Limbang. 
Troides amphrysus ruficollis, Butl. 
A female from Limbang, June. 
Papilio noctula, Westw. 
One female from Limbang, June, which I refer with some 
doubt to this species. It differs from the only other female in 
the Sarawak Museum in the internervular fuscous ground- 
colour on the underside of. the hind-wing which shows hght 
constrictions suggestive of an approach towards the noctis type 
in which this constriction has been carried out, resulting in a 
hind-marginal row of well defined spots. A typical female 
nochis was taken on the Limbang River in April 1910. 
Papilio demolion, Cr. 
Salindong, June 11th. A common butterfly in Sarawak. 
Papilio iswara, White. 
Salindong, June 12th. A common butterfly in Sarawak. 
Jour. Straits Branch 
