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* See Tabular Review at the end of this part of this chapter for an explanation of the lettering of the illustrations. * Horn, Trans. Am. Ent. Soc., III. p. 79, with figure. This is the case in one of the most important works in the literature of American entomology, "The Classification of the Coleoptera of North America," by Le Conte and Horn. The student in the use of this indispensable work must bear this change of names mind. These authors have termed the true mentum the hypoglottis, and state that in Carabidae the homologous portion is often called the " basal membrane of the ligula" (/. c. p. xviii). * The more important works on the nomenclature of the parts of the thorax are the following : Audouin, J. V. Recherches anatomiques sur le thorax des animaux articules et celui isectes hexapodes en particulier. Annales des Sciences Naturelles, T. I. (1824)'. The works of Kirby and Spence, MacLeay, Straus-Durckheim, Newman, and Newport cited on p. 12. The description of the anatomy of the thorax by MacLeay was re published in the Ann. des Sci. Nat. t. 25 (1832). * Edward Burgess, Contributions to the Anatomy of the Milkweed Butterfly (Memoirs of the Boston Society of Natural History, 1880). George Dimmock, The Anatomy of the Mouth-parts and Sucking Apparatus of some Diptera (Boston, 1881). * See Dr. V. Graber, Ueber den propulsatorischen Apparat der Insecten, Archiv fUr mikroscopische Anatomic, Band IX. (1873). Straus-Durckheim, Animaux Articules (1828). Miall and Denny, The Cockroach (1886).

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