BY R. J. TILL YARD. 



751 



Appendix. 

 The text-blocks above the legends of Text-fig. 1 and Text-fig. 3 

 on pp.215 and 217 of Mr. Tillyard's paper "On the Development 

 of the Wing-venation in Zygopteroiis Dragonflies, etc.," [antea, 

 p. 2 12), were inadvertently transposed. The figures are now re- 

 printed as they should have appeared in the original paper. [Ed.] 



^aXXXs 1/ I ! / // // I I I // /J^-l, 

 C Sc. ^ _R 



Text-fig. 1. — Tracheatioii of larval wing of Diphlehia lesto'ides Se\ya. 

 A. Antepenultimate instar. B. Penultimate instar. Compare 

 PI. xxxii., figs 1-3, PI. xxxiii., fig. 1. 



M,-3M, 



Text-fig. 2. — Imagiiial venation of Diphlehia lesto'ides Selys, for com- 

 parison with Text-fig. 1. 



