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Hickernell, Louis Max 
1920a The digestive system of the periodical cicada, Tibicen septendecim 
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1923a The digestive system of the periodical cicada, Tibicen septendecim 
Linn. III. Morphology of the system in the nymph. Biol. Bui. 45: 
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Hildreth, Samuel Prescott 
1820a Notes on certain parts of the State of Ohio. Amer. Jour. Sci. 10: 
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Notes on the life history of the periodical cicada 
1828a Ueber die amerikanische Cicade. Not. Nat. Heilk. 22: 33-35 
Notes on the life history of the periodical cicada 
1828b On the Cicadidae, or locusts of the State of Ohio. Edinb. Jour. Sci. 
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Notes on the life history of the periodical cicada 
1830a Notices and observations on the American cicada, or locust. Amer. 
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Notes on the life history of the periodical cicada 
1832a Bermerkungen ueber die amerikanische Cicada septendecim. Isis 
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Notes on the life history of the periodical cicada 
1847a On the habits of Cicada septendecim . Ann. and Mag. Nat. Hist. 20: 
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Notes on the life history of the periodical cicada 
1847b Die Siebzehnjahr-Locuste. Not. Nat. Heilk. (3) 3: 241-245 
Notes on the life history of the periodical cicada 
1847c Cicada septendecim in 1846. Amer. Jour. Sci. (2) 3: 216-222; Figs. 
1-2 
Notes on the life history of this species 
1848a Details sur les moeurs de la Cicada septemdecim. L’Institut 16: 
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Notes on the life history of the periodical cicada 
Hilgendorf, F. W. 
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Hilton, W. A. I 
1939a Nervous system and sense organs. LXXAIII Homoptera. Jour. | 
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Brief discussion of the morphology of the central nervous system 
