MISCELLANEOUS NOTES. 271 



discal white bar on the tore wing obsolete ami the siimous bhiok lines less 

 ilefined. Ochreoiis red discal and purple submarginal lunular markings on hind 

 wing large and distinct. 



h\ regard to the outline oi the fore wings, careful measurements of several 

 males of C.fabiiis from different parts of India show the relative lengths of the 

 costa, termcn and dorsum to be in the proportions of UK) : 75 :64 or 65 ; while 

 similar measurements of the new form are in the proportions of 100 : 70 : 60. 

 The difffJi'ence in outline, though slight, is distinct. 



The species is not represented either in the de Nictville collection or in the 

 Indian Museum collections ; nor is it described in Rothschild's '' Monograph on 

 the Charaxes and allied genera" (^Novitates Zoologies, vols, v, vi and vii). It 

 would appear to approach some of the Malaj'an forms of the genus ; except for 

 the almost unmarked fore wing, the upper side is not unlike that of C. echo 

 Butler, as illustrated and described in the above work. 



Expanse 3-1 6 inches. Described from a single male taken near Jainti on 

 the Raidhak River (Bhutan frontier), 2,000 feet, in June, and now in my 

 collection. 



l^The above is from the "Records of the Indian Museum, ^^ Vol. II, Part III. 

 October, 1908, i?. 285.] 



No. XXX —MIGRATION OF BUTTERFLIES. 



On Sunday, October I8th, I was spending the day in a small river-bed in the 

 Ouchterlony Valley : it was a hot calm day with no appreciable breeze, at about 

 10 o'clock. Etiplaas began flying high over the treetops — the river is in heavy 

 forest — by thousands. They were floating over in their laziest fashion, all 

 without exception, in the same direction, viz., about due west, and kept this up 

 until I left soon after 2 o'clock. It is impossible to estimate the numbers I 

 could see passing over, but hundreds were in sight the whole time, so that tens 

 of thousands must have passed over within sight during four hours. On the 

 following Wednesday I was in the same place, but there was no sign of any 

 such flight. The day was altogether cooler, and up till 11 o'clock, cloudy on 

 the whole, with a good deal of wind at intervals. After 11 the sun shone 

 almost continuously, but I hardly saw a EupUea during the whole day. I 

 mention this flight as I do not remember having seen EupUtas migrating in this 

 manner, even on a small scale, before. There Avas none of the business-like 

 aspect which a migration of Pieridse always suggests : they seemed rather to be 

 going as slowly as they could, without any flapping of wings, and to be enjoy- 

 ing the sunshine rather than trying to get anywhere, though from the fact that 

 they did not turn to the right or to the left, but kept a very exact coui-se, it is 

 to be supposed that they had some destination in view. With luck the earlier 

 starters may have reached the Malabar border by nightfall, unless, as is possible, 

 they were travelling in a circle. 



H. L. ANDREWES. 

 Barwood Estate, Nilgiri?, 



23rd October 1(M»H. 



