B 

 Fig. 16. A. Tactile hair from the larvae of Vanessa urticae. B. Scolopoid 

 body in the tactile hair of the larva of Fieri s rapae. S, scolopoid sheath; 

 Sb, scolopoid peg; D, dendrite; N, bipolar neuron; A, axon; Tr, 

 trichogen cell ; To, tormogen cell. (Redrawn from Hsii, 1 938.) 

 C 



