EXPLANATION OF PLATE XLL 



Fki 1. — AiUUini>lialn hlsecln, ^'enital annatui'c; <■/, clasiier; s, spffiali/.ed, tuothed end of siiranal iilatc; ji, penis; p', 



penis sheath. 

 Frt;. 2. — Syssphinx moliva, genital armature, side view, showing' jienis; '2tl, end vrew of the same, sliowiiig the elasper 



and doubly mucronate suranal plate.. 

 Fi(i. ',i. — Anisota rirgijiicniils, deeply forked suranal plate, below which is the penis and its sheath. 

 Flo. 4. — Anis(4a stigma, dorsal view of genital armature, showing the deeply divided, specialized en<l of the suranal 



plate; 4((, the same seen from beneath; 46, side view of the same. 

 Fig. 5a. — Anisota senatoria, genital armature, clasper; 56, side view of the armature. 

 Fic;. 6. — Anisota riibicmidci, deeply l)ilobed end of suranal plate (.«') ; 6(i, inner view, showing the penis and its sheath; 



6li, the same from beneath; .s', the specialized bilobed extremity of the suranal plate. 

 Fio. 7. — Kiicli-ti iiiiperialin, side view of clasper; To, suranal plate from above; 76, genital armature seen from the side, 



pi, pleural membrane; Ic, a minute adjunct of the penis sheath. 

 Fki. 8. — Portion of male antenna of Eacles imperialis. 

 Note. — Lettering as on Plate XL. 



232 



