172 



DR. A. D. IMMS ON 



Text-fig. 1. 



aZ. 



Neuration of the upper and lower wings of a typical specimen of Embia major (slightly diagrammatic). — c, costal 

 vein ; sc, subcostal vein ; r., radial vein ; al., anterior radial line ; pi., posterior radial line ; to., upper stem 

 of radial vein ; m.,, m. , m. 3 , branches of the upper stem of the radial vein ; m. 4 , lower stem of radial vein ; 

 Hi., cubital vein and its branches ; a., anal vein. The courses of the anterior and posterior radial lines in bolh 

 wings are represented by the dotted lines, x 9. (Westwood Bequest.) 





The probable neuration of the ancestral type from which Emhia major has originated. This conclusion is arrived 

 at by combining in one figure the variations exhibited in different individuals, and also the condition of the 

 neuration seen immediately after the last ecdysis. (Reference lettering as in text-fig. 1.) x 9. (Westwood 

 Bequest.) 



