NO. 6 CATERPILLAR AND BUTTERFLY — SNODGRASS 47 



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1937- Gustation and olfaction in lepidopterous larvae. Biol. Bull., vol. 72, 



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 1941a. Chemical factors determining the choice of food plants by Papilio 



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1914. On the nervous system of the larva of Sphida obliqua Walker. Trans. 



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J953- The development of imaginal buds in the head of Pieris brassicae 

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 Eastham, L. E. S. 



1930. The embryology of Pieris rapac. Organogeny. Philos. Trans. Roy. 

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!955' The feeding mechanism of the butterfly Pieris brassicae L. Philos. 

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 Ehrlich, P. R., and Davidson, Susan E. 



1961. The internal anatomy of the monarch butterfly, Damns plexippus L. 

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1950. The life-history of the greater wax-moth (Gallcria vtcllonclla L.) 

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1928. On the production of silk by species of the genus Hilara Meig. 

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1938. Muskelmechanik des Raupen-Abdominalfusses (Lep.). Mitt. Deut. 

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1956. Normal and induced degeneration of abdominal muscles during meta- 

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