
No. 427.] HAIRS OF LEPIDOPTEROUS LARV&E. 577 
cells and fibers which (a) stain lighter than the larger nerves 
and (7) are closer to the hypodermis than the other cells 
and fibers. 
4. Nerves from bipolar sensory nerve cells go to the central 
nervous system, run to the ganglia, leaving at once to follow 
on the outside of the connectives cephalad, forming a well- 
marked sensory tract. Motor nerves — those that go to mus- 
cles — seem to come directly from the central cell areas of the 
ganglia. 
5. Almost the only sensory termination of nerves on the 
body of insects is by means of hairs. 
I wish to make my very sincere acknowledgments to Pro- 
fessor Comstock and the Department of Entomology for much 
invaluable aid in the preparation of this paper. 
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