Explanation of Plate 52. 



[All fig^ures enlargrcd.] 



Drawn by R. A. Cooley. 



I. Venation of fore wing of male. 

 " " hind " " " 



" " fore wing of female. 



" ".hind " " " • 



Base of fore wing, showing outline of the spiny area. 

 Portion of the spiny area, showing the spines, greatly en- 

 larged. 



7. Area from near the middle of the upper side of the fore 



wing of female, showing scales and hairs. 



8. External outer border of wing, shovving spines and a fringe 



scale. 



9. Singlfe blunt spine from outer border. 



10. Section of figure 19 greatly enlarged, showing spiny sur- 

 face. 



II," 12, 13, 14, 16. Various types of scales from the wings. 



15. Scale from the upper side of the fore wing of the female, 

 showing the striae. 



17, 18. Scales from the fringe of the fore wing. 



19. Hair from the end of the abdomen of the female. 



20. " " " " " " "' male. 



21. Section of a scale near the base. 



22. " " " " " middle. 



