Explanation of Plates. 335 



PLATE CII. 



I. Ventral view of external genitalia of normal female of Amorpha 



populi in retracted position, x 12. 

 II. Lateral view of external genitalia of normal female of A. populi 

 in extended position. 



PLATE CIII. 



Diagrammatic representation of ventral view of external genitalia 

 of gynandromorphous Eronia hippia var. gaea. 



PLATE CIV. 



I. Bursa copulatrix and ostium bursae of normal female of Eronia 



hippia var. gaea. X 15. 

 II. Bursa copulatrix and ostium bursae of gynandromorphous 

 E. hippia var. gaea. x 15. 



