BY R. J. TI 1. 1. YARD. 



087 



and Kj basally is obliterated in Euploea, though a remnant of it 

 may still he seen in Danaida. The veinlet Inn develops into a 

 strong costal spur, which helps to strengthen the enlarged am- 

 plexiforni humeral area. Text-fig. 102 shows the imaginal vena- 

 tion of Euploea corinna, for comparison with that of Eusehemon 

 rafflesia. 



The Archetype of the Suborder Heteroneura may now be de- 

 termined, by summing up the characters of the various groups 

 studied, and selecting the most archaic condition of each. This 

 is most conveniently done by means of a Table ( Table iv . ) 

 similar to that already given for the Homoneura, in which the 

 letter A indicates the most archaic condition for each character, 

 while P>. C, . . indicate more specialised conditions in as- 

 cending order. The Rhopaloeera are included in this Table, 

 though not strictly one of the more archaic groups of this Sub- 



sc Ri R ? 



1A+2A 



Text-Fig.103. 



Wings of the Archetype of the Suborder Heteroneura. Lettering as 



on p. 535. 





