﻿43 



Length of costa, 76 mms. ; of outer margin, 53 mms. ; 

 of inner margin 45 mms. Length of posterior wing, 52 

 mms. ; of costa, 37 mms. ; of abdominal margin 40 mms. 

 Greatest width of wing, 31 mms. Length of abdomen or 

 antennas, 41 mms. ; of thorax with head, 23 mms. 



Length [1st pair : femur, 10; tibia, g; tarsi, 12 mms. 

 of j2nd ,, : ,, 11 ; „ II ; ,, 13 ,, 

 Legs: (3rd ,, : ,, 11; ,, 11; ,, 16 ,, 



Habitat : Selaru, Loeang Island, Babber. 



This species is related to Plato and Iris, and is certainly 

 a member of the Haliphron group. Its nearest affinity is 

 with Iris. 



In the Tring Museum. 



I am indebted to the Hon. Walter Rothschild for the 

 use of the examples from which the above descriptions 

 are written. 



Babba, or Baba Island as it is spelled in the Admiralty's 

 Chart, is one of a small group of islets situated at a com- 

 paratively short distance west of the Tenimber Islands in 

 the Banda Sea, in about i3i°east longitude and 90 south 

 latitude, or about 100 miles due west of the Tenimber 

 Group. The recorded depth of the ocean at about this 

 locality is 2627 fathoms, that is to say nearly the deepest 

 recorded part of the sea between the West Coast of New 

 Guinea and Timor on the south-west, and the Celebes on 

 the north-west — the deepest part of the Banda Sea is 2880 

 fathoms. The depth diminishes in the direction of 

 Celebes and Timor, though not so greatly as it does to the 

 east and north-east towards New Guinea. The seas of 

 Banda, Arafura, and Flores are thickly studded with archi- 

 pelagos and small islands ; and doubtless many interest- 

 ing local forms of Pompeoptera will be found on these 

 islets, which appear to be pretty rich in insect life, and its 

 different orders. Loeang Island belongs to the same 

 group. 



