17 



THE DESTRUCTIVE SPHINX. 

 Sphiruv Exitiosa United States. 



PLATE LXIll. 



j^Sgeria Exitiosa, Sat/. ^-Journal of the Academy of Natural 

 Sciences, vol. iii. p. 216, New Say, American Entomo- 

 logy, vol. 11. pi. 19 ; upper and middle figures. 



Male. — The body is steel-blue ; antennae ciliated 

 on the inner side, black, with a tinge of blue ; palpi 

 beneath yellow ; head with a band at its base ; both 

 above and beneath pale yellow ; eyes black-brown ; 

 the thorax with two pale yellow longitudinal lines, 

 and a transverse one behind, interrupted above, and 

 a spot of the same colour beneath the origin of the 

 wings ; the wings are hyaline ; nervures and margin 

 steel-blue, which is more dilated on the costal mar- 

 gin, and on the anastomosing band of the superior 

 wings ; the feet are steel-blue ; the coxce two bands 

 on the tibise, including the spines, incisures of the 

 posterior tarsi, and anterior tarsi behind, pale yel- 

 low ; the abdomen, with two very narrow pale 

 yellow bands, one of which is near the base, and 

 the other on the middle ; the tail is fringed, the 

 fringe margined with white on each side. 



Fe.male. — The body is very dark steel-blue, with 



