ENTOMOLOGY 



FIG. 223. Section through left hind wing in larva of Picris rapce, the section being a frontal 

 one of the caterpillar; the base of the wing is anterior in position, and the apex posterior, c, 

 cuticula; h, hypodermis; /, trachea; w, developing wing. After MAYER. 



v-.. 



B 



FIG. 224. Internal transformations of Sphinx ligustri. A, larva; B, pupa; C, moth; 

 a, aorta; an, antenna; b, brain; /, fore intestine; fr, food reservoir; h, hind intestine; ht, 

 heart; m, mid intestine; mt, Malpighian tubes; p, proboscis; s, subcesophageal ganglion; 

 /, testis; lg, thoracic ganglia; v, ventral nerve cord. After NEWPORT. 



