274 



Transactions. 



^~ ^5C= 



Fig. 50. — Wing- base of N. hudsoni. 

 Fig. 51. — Wing-base of A. harrisi. 

 Fig. 52. — Wing-base of C. chiltoni. 



Fig. 53. — Wing-base of P turrifer. 

 Fig. 54.— Macrotrichia round R4 + 5 on 

 wing of C. chiltoni 



