EXPLANATION OF PLATE LIX. 



Fig. 1. — Adetocephala hicolor, S < genital armature, from beneath; cl, clasper; la, f:\i\e view of the same. 



Fig. 2. — Adelocephala bisecta, $ , tergal view; s', end of suranal plate. 



Fig. 2a. — Adelocephala bisecta, S , tergal view, end of body removed to show entire suranal plate (8), with it.s tip (s'). 



Fig. 26. — Adelocephala. bisecta, $ , cla-sper (side view); s, suranal plate. 



Fig. .S. — Syssphinx molina, $., from beneath; 2a, clasper. 



Fig. .3a. — Syssphinx molina, S > from above; s, basal piece of suranal plate; cl, clasper, with its solid black tip (2). 



Fig. 4. — Anisofa rirginiensis, $ , seen from end; s', ends of the forked suranal plate; cl, clasper, fi-om the outside; 



cV, the same, seen from the inside. 

 Fig. 4n. — Anisota rirginiensis, $ , the genital armature, from beneath. 



Fig. 46. — Anisota rirginiensis, $ , the genital armature, under side of suranal plate, with the terminal fork (s'). 

 Fig. 5. — Anisota stigma, $ , end of abdomen, from above. 

 Fig. 5a. — Anisota stigma, ^, sternal' view of claspers and forked tip of suranal plate; cl, r, right clasper; cl, I, left 



clasper; st, sternum. 

 Fig. 56. — Anisota stigma, S, a portion (tergite) removed to show the forked eml of the suranal plate [s'). 

 Fig. 5c. — Anisota stigma, $ , end of abdomen, lateral view. 



Fig. 6. — Anisota senatoria, $ , tergal view of genital armature, the tergite of segment nine having been removed. 

 Fig. 6a. — Anisota senatoria, $ . The same, from beneath. 



Fig. 7. — Anisota mbicunda, S, end of abdomen; p, penis; jil, penis sheath; cl, clasper-tip not shown. 

 Fig. ~a. — Anisota rubicurida, $, sternal view: .v, suranal plate bent down. 

 Fig. 8. — Citheronia regalis, $ , segment nine (IX I and clasper intact, dorsal view. 

 Fig. 8a. — Citheronia regalis, $, sternal view of clasper (cl), harpe (/(), with sternite of segment eight (VIII), and 



the suranal plate between the harpes. 



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