BY E. MEYRICK, B.A. 633 



specific difference between the Tortricina of Australia and New 

 Zealand, the matter is deserving of a full investigation. 



The little genus Stigmonota is also worthy of notice, as being, 

 with the exception of the abnormal and doubtful genus Epitymbia 

 the sole representative of the large Grapholitha group. Its 

 presence probably indicates the antiquity of the genus ; the 

 species are very similar in facies to the European. 



Of the Conchylidee there are five Australian and one New 

 Zealand species, all endemic, distributed amongst four endemic 

 genera, the New Zealand species being congeneric with an 

 Australian one. These appear to form two groups, both of which 

 are very distinct from anything yet known to occur in other parts 

 of the world, and are characterised by the structure of the hind- 

 wings. These in all other known genera of the family contain 

 eight veins, of which 3 and 4 are stalked or from a point ; but 

 in one Australian type, represented by the genus Heliocosma, 

 these veins 3 and 4 are widely remote at origin and parallel, 

 whilst in the other type, of which the other three genera are 

 examples, there are only six veins in the hindwings altogether. 

 The curious bladder-like swelling of the f orewings in Coscinoptycha, 

 and the spherical radiating tuft of hairs on the hindwings of 

 Olstophora, are abnormal and remarkable characters to which no 

 analogy is found elsewhere. The facies of Heliocosma is that of 

 the normal European type, but the species of the other group 

 are eccentric and peculiar in appearance, and indeed are hardly 

 recognisable superficially as belonging to the lortricina. The 

 origin of the whole of the Australian forms may probably be 

 referred to some single ancestor of extinct type, finding its way 

 hither at a very remote period, perhaps intermediate in structure 

 between Heliocosma and Paramorpha, which have many points of 

 resemblance. The habit of the only larva of this family which 

 I have yet met with is also very extraordinary, for it constructs 

 for itself a portable case of the fragments of the flowers on which 

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