30 Journal New York Entomological Society. t Vo1 - xxvii. 



BIBLIOGRAPHY. 



19 1 2. Alt. Ueber das Respirationssystem von Dytiscus marginalis. Diss. 



Marburg. (See also Zeit. Wiss. Zoologie, Bd. 99.) 

 1909. Berlese. Gli Insetti. Milano, 1909. 

 1841. Dufour. Recherches anatomiques et physiologiques sur les Orthop- 



teres, les Hymenopteres, et les Neuropteres : Mem. math. Sav. etrang, 



Paris, 1 84 1, T. 7, pp. 265-647. 

 1762. Lyonet. Traite anatomique de la Chenille qui ronge les bois du saule. 



La Haye, 1762. 

 1669. Malpighi. Dissertatio epistolica de Bombyce. Londini, 1669. 

 1886. Miall & Denny. The Cockroach. London, 1886. 

 1878. Packard. Anatomy and Embryology of Locust: First Rpt. U. S. Ent. 



Comm., p. 257. Washington, 1878. 

 1880. Packard. The Air-sacs of Locusts: Second Rpt. U. S. Ent. Comm., 



p. 178. Washington, 1880. 

 1877. Palmen. Zur Morphologie des Tracheensystems. Helsingfors, 1877. 

 1903. Snodgrass. Anatomy of the Carolina Locust Dissosteira. Washing- 

 ton State Agr. College, 1903. 

 1828. Straus-Durckheim. Anatomie comparee des Animaux articules. Paris, 



1828. 

 1737. Swammerdam. Bybel der Natuure. Leydae, 1737. 



Terminology. 

 Spiracle Terminology. 



I — First thoracic spiracle. 

 II — Second thoracic spiracle. 

 Ill — First abdominal spiracle. 

 IV— X — Second to eighth abdominal spiracles. 

 stm — Septum. 

 ocm — Occluding muscle. 

 In Fig. 16 Arabic numerals (3 to 10) are used instead of Roman numerals 

 to represent the spiracles. 

 Tracheal Terminology. 

 Air sacs. 



A — Cephalic air sac. 

 B — Main thoracic air sac. 

 C — Air sac connecting with spiracle //. 

 D, E and F — Other air sacs found in thorax." 

 Tracheal Tubes, 

 (a) Head. 



I x — Superior cephalic trachea. 

 L 2 (a and b) — Median cephalic trachea and branches. 

 gt — Genal trachea. 

 ot — Ophthalmic trachea. 



