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LITERATURE CONSULTED. 



1833. Dufour. Recherches anatomiques et physiologiques sur les Hemipteres. 



1860. Flor. Rhynchoten Livlands Vol. 1. 



1875. Fieber. Les Cicadines d'Europe. Introduction, pp. 8-31. 



1883. Gise. Die Mundtheile der Rhynchoten. Archiv. f. Naturg. Vol. XLIV. 



1885. Wedde. Beitrage zur Kenn. des Rhynchotenrussels. Archiv. f. Naturg. 



(2) LI. 



1886. Miall and Denny. The Structure and Life History of the Cockroach. 

 1896. Hyatt. Cicada Septendecim, its mouthparts and terminal armour. Am. Mo. 



Mic. Journ. Vol. XV. id. Vol. XVII. 

 1896. Marlatt. The Hemipterous Mouth. Ent. Soc. Wash. Vol. III. pp. 241-2.50. 

 1896. Melichar. Cicadinen von Mittel-Europa. 

 1896. Osborn. The Phylogeny of Hemiptera. Ent. Soc. Wash. Vol. III. pp. 



lS.5-190. 

 1896. Melichar. Cicadinen von Mittel-Europa. 

 1898. Packard. Text Book of Entomology. 

 1898-1899. Holmgnen. Beitrage zur Kenntnis der Weiblichcn Geschlechtorgane 



der Cicadanen. Zool. Jahrb. Abt. fur Syst. XII. 

 1902. Comstock and Kochi. The Skeleton of the Head of Insects. Am. Nat. 



Vol. XXXVI. 

 1902. Smith. The Structure of the Hemipterous Mouth. Science. Vol. XIX. 



No. 478. 

 1904. Haller. Lehrbuch der Vergleichenden Anatomic. 



1908. Bugnion. L'Appareil Salivaire des Hemipteres. Arch. D'Anat. Mic. Vol. X. 



pp. 227-268. 



1909. Berlese. Gli Insetti. Vol. I. 



1910. Gadd. Zur Anatomic der Cicaden und Tettigonia viridis. Revue Russe 



d'Entom. X. No. 3. pp. 20.5-213. 

 1910. Faure-Fremiet. Contribution a L'Etude des Glandes Labiales des Hydro- 



corises. Ann. des Sci. Nat. Zool. N. S. 9. Vol. XII. 

 1910. Kershaw. A Memoir on the Anatomy and Life History of the Homopterous 



Insect, Pyrops candelaria. Zool. Jahrb. Abth. f. Anat. XXIX. pp. 105-124. 



1910. Pantel and Licent in Bull. Soc. Entom. de France, pp. 36-39. 



1911. Bugnion and Popoff. Les Pieces Buccales des Hemipteres (Prem. Partie). 



Arch. Zool. Exper. et General. 5e Serie, Vol. VII. pp. 643-674. 



1911. Licent. Signification de la dilation proventriculaire chez les Homopteres 

 superieurs. Bull. Soc. Entom. France, pp. 48-52, 284-296. 



1911. Sulc. Uber Respiration, Tracheensystem und Schaumproduktion der 

 Schaumcikadenlarven. (Aphrophorinae-Homoptera). Zeits. f. Wissensch. 

 Zool. Band. 99. pp. 147-188. 



1911. Muir and Kershaw. On the Homologies and Mechanism of the Mouth- 

 Parts of Hemiptera. Psyche. Vol. XVIII. No. 1. pp. 1-12. pi. 1-5. 



1911. Muir and Kershaw. On the later Embryological Stages of Pristhesancus 



papucnsis. Psyche. Vol. XVIII. No. 2. pp. 75-79. PI. 9-10. 



1912. Muir and Kershaw. The Development of the Mouthparts in the Homoptera 



with observations on the Embryo of Siphanta. Psyche. Vol. XIX. No. 3. 

 pp. 77-89. 



1913. Kershaw. Anatomical Notes on a Membracid. Ann. Soc. Entom. Belgique. 



T. 57. pp. 191-201. 

 1913. Kershaw. The Alimentary Canal of Plata and Other Homoptera. Psyche, 

 Vol. XX. No. 6. pp. 175-187. PI. 5-6. 



1913. Tower. The External Anatomy of the Squash Bug, Anasa tristis DeG. 



Ann. Ent. Soc. Amer. Vol. VI. pp. 427-437. PI. LV-LVIII. 



1914. Kershaw. The Alimentary Canal of a Cercopid. Psyche, Vol. XXI. No. 2. 



pp. 65-72. PI. 4. 



1914. Tower. The Mechanism of the Mouthparts of the Squash Bug, Anasa 



tristis DeG. Psyche, Vol. XXI. No. 3. pp. 99-108. PI. 1-11. 



1915. Peterson. Morphological Studies of the Head and Mouthparts of the 



'I'hysanoptera. Ann. Ent. vSoc. Amer. Vol. VIII. No. 1. pp. 22-57. PI. 1-7. 



1916. Martin. The Thoracic and Cervical Sclerites of Insects. Ann. Ent. Soc. 



Amer. Vol. IX. No. 1. 



