52 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



Figs. 45-46.— Thrips spinosus. 45, head and prothorax ok female, dorsal, view; 46, left antenna 

 of male, dorsal view. figs. 47-49.— tlirips helianthi. 47, head and prothorax of female, dorsal 



view; 48, LEFT ANTENNA OF FEMALE, DORSAL VIEW; 49, TIP OF ABDOMEN OF FEMALE, DORSAL VIEW. 



Figs. 50-54.— Trichothrips flavicauda. 50, head, prothorax, and fore legs of female, dorsal 

 view; 51, TIP OF abdomen of female, dorsal view; 52, head, prothorax, and fore leg of male, 

 dorsal view; 53, left antenna of male, dorsal vlew; 54, tip of abdomen of male, dorsal view. 



