536 



lidae, Tischeriidae and Leucopterigidae, as shown by larval 

 characters. 



In the forewings of Oposfcga there are no cross veins and 

 only three long-itudinal veins. Aleyrick speaks of this as the 

 extreme of neural degeneration, while Busck and Heinrich say 

 that this venation of Opostega is the most advanced in Lepi- 

 doptera. 



IMeyrick has described seven species of Opostega in Aus- 

 tralia (P. L. S. N. S. W. (2), VII:605-608, 1893), which is more 

 than is known elsewhere. Four are known in England and 

 three in United States. Not much is known of the larval 

 habits, probably the observations above reported are more than 

 known elsewhere. 



Chalcid parasites have been bred from the mines in Pclca, 

 but their identity is not yet known. Sometimes more parasites 

 issue than moth larvae from the mined leaves brought m. 



EXPLANATION OF PLATE IX. 



Leaves of various species of Pelea showing mines of larvae of Opostega. 



A. Mine of Opostega callosa. 



B. " " maculata. 



C. " " serpentina. 



D. " " piforma. 



E. " " peleana. 



F. Mine of an undetermined species. 



