BY E. MEYRICK B.A. 483 



hindniargin. Hindwings with veins 3 and 4 from a point, 5 

 approximated to 4 at base, 6 and 7 separate. 



This genus only differs from Tortrix by the presence of a costal 

 fold in the male ; in conjunction with Tortrix, it constitutes the 

 type of the principal and most universally distributed group of 

 the family. In this group the only other genus of which the 

 male possesses a costal fold is Ptycholoma, Stph., characterised by 

 the very short palpi. Loxotccnia, HS., is generally maintained 

 by European writers as a distinct genus from Caccccia, the 

 separation being based on the character of the costal fold of the 

 male, which is defined as being strong and membranous in Caccecia 

 and imperfect and hairy in Loxotcenia, but I do not think myself 

 that this distinction is worthy of being maintained ; the form of 

 the fold differs so much in different species, that every gradation 

 can be found between a very slight upward curving and roughen- 

 ing of the extreme costal edge near base, and a broad strong 

 membranous fold extending over basal half of costa. I have 

 consequently included all these species in Caccecia, employing the 

 shape of the fold only as a means of grouping them into natural 

 sections. The length of the palpi also varies considerably ; all 

 the New Zealand species have elongate palpi, but are otherwise 

 not generically separable. Idiogr aphis, Ld., which has elongate 

 palpi and is referred by Heinemann to this group, has been 

 shown to belong in reality to the Conchylidce. 



The species are mostly rather large, with ample wings but dull 

 colouring. The genus contains about twenty European species, 

 and is represented, probably to a considerable extent, in North 

 aud South America ; it is probably cosmopolitan in distribution. 

 I am acquainted with twelve Australian species, and eleven from 

 New Zealand ; in the latter country the genus appears to be 

 represented by an unduly large proportion of species, in com- 

 parison with the entire fauna. The following is a tabulation of 

 those described : 

 I. Costal fold of male extending to base of wing. 



