A LIST OF THE BUTTERFLIES OF BORNEO. ET 
Symetha pandu, Horsfield, Cat. Lep. Mus. E. I. C. pl. TH, 
figs. 2, 2a-1. (1828). 
Miletus zinckenti, Felder, Reise, Nov. i. p. 284, pl. 35, 
fig. 34, 6 (1865). 
Sandakan, Labuan; Trusan and Pulo Laut (Sar. Mus.). 
Distribution; Tenasserim; Moulmein and. south of Mergui; 
Malay Peninsula and Archipelago; from Philippines to New 
Guinea. ; | 
[An example of this species was observed in May 1904 in 
the Botanic Gardens, Singapore, settled on a large leaf on 
which several ants were moving about. On a closer examin- 
ation it was seen that both the ants and the butterfly were 
sucking the fluid secretion from the cloacal aperture of some 
small larval Fulgoridae or Jassidae. ‘The larvae rested placid- 
ly whilst their attendant guests imbibed the presumably sweet 
fluid; but when disturbed they hopped off the leaf and were 
lost in the surrounding vegetation]. R. 8. 
Similar’cases have been reported to me by native collectors 
during the last eighteen months in connection with other 
Gerydinae (viz. Gerydus ancon, Allotinus horsfieldi, A. nivalis, 
Logania sriwa, L. drucei and L. staudingert)*; and in May this 
year (1911) I was fortunate enough to make the observation 
myself. 
The above observations are of some interest as affording a 
parallel to the case of Allotinus horsfieldi, Moore, which was 
observed by Col. H. J. W. Barrow, -R.A.M.C., in attendance on 
Aphidae in India.? 
The record of the two JLogania_ species attending 
Homoptera is interesting because their legs are of normal 
length, while those of Allotinus and Gerydus are peculiarly 
long, and as remarked by Col. Barrow, are well adopted for 
standing over a mass of Aphides, 
261. Gerydus ancon, Doherty. 
Gerydus ancon, Doherty, Journ. As. Soc. Beng. p. 438, pl. 
23, fig. 8 (1889). 
A male and female, taken in the upper waters of the Limbang 
River, Sarawak, the latter near Batu Lawi (Sar. Mus.). 
Only recorded from ‘Tenasserim and Burma before. Bing- 
ham remarks on its rarity. 
The Sarawak male differs from the mainland form in 
the white band on upperside of fore-wing not being completely 
interrupted by the junction of basal and hind-marginal fuscous 
colouring. Also the marginal dark line on the underside of 
hind-wing of the continental G. ancon male is replaced in the 
1. Moulton. Proc. Ent. Soc., Lond. 1910. pp. xxxvili—xli. 
2. Fauna of British India: Butterflies. Vol. II. 1907. p. 287. 
R, A. Soc., No. 60, 1911 
