1908] Female Reproductive Organs of Cinihex 95 



toplasm containing one or more nuclei. Within the clear bladder- 

 like structure is a cone [Achsencylinders of Will (32)] which grad- 

 ually becomes thicker toward its basal portion. From the basal 

 region of the sense organ a nerve is given off. 



The epithelium, when traced from the region where the duct 

 of the coUeterial sac opens out, to the triangular plate, is seen 

 to be represented by cells which are somewhat wider than long,, 

 with their basal ends more or less rounded. Anterior to the 

 triangular plate, however, there is an abrupt cellular change; the 

 epithelial cells, as already mentioned in the description of the cell- 

 ular change between the spermatheca and common oviduct, are 

 extremely flattened and are represented chiefly by ovoid nuclei,, 

 which are arranged parallel to the chitinous intima (Fig. 3). 



We are deeply indebted to Professor William S. Marshall for 

 the use of literature taken from his excellent librar^^ 



Zoological Laboratory , Ohio State University. 



BIBLIOGRAPHY. 



1. Andr^, E. '82. La structure et la biologic des insectes. Paris Lib. centrale- 



d. sci. 



2. Ayers, H. '84. On the development of Oecanthus niveus and its parasite, 



Teleas. Mem. Boston soc. nat. hist. IIL 



3. Berlese, A. '06. Gli insectti lora organizzazione sviluppo, abitudini e rap- 



porti coll'unomo. Soc. Editrice Lib. Milano. 



4. Bordas, L. '94. Sur 1' appareil venimeux des Hymenopteres. C. R. acad. 



d. sci. cxviii. 



5. '94. Anatomic de I'appareil venimeux des Ichneumonidae. 



Zool. Anzeig. 



6. '94. Appareil glandulaire des Hymenopteres (Glandes sali- 



vaires, tube digestif, tubes de Malpighi, et glandes venimeuses. Ann. 

 d. sci. nat. zool. xix. 



7. '97. Description anatomique et etude histologique des 



glandes a venin des Insectes Hymenopteres. Paris, Lib. G. Carre et C. 

 Naud. 



8. Brandt et Ratzeburg, '29. Darstellung und Beschreibung der Tiere, IL 



9. Bresslau, E. '05-'06. Der Samenblasengang der Bienenkonigin. Zool. 



Anzeig. xxix. 



10. Cheshire, F. R. '86. Bees and bee-keeping. L London. 



11. '85, The apparatus for differentiating the sexes in bees and 



\vasps. An anatomical investigation into the structure of the recepta- 

 culum seminis and adjacent parts. Journ. R. Micr. Soc. serll Bd. v. 



12. Cholodkowsky, N. '85. Uber den Geschlechtsapparat von Nematois met- 



talicus. Zeitschr. f. wiss. Zool., xliii. 

 1.3. Dierckx, F. '99. Etude coniparee des glandes pygidiennes chez les Carabides 

 et les Dj-tiscides avec quelques remarques sur le elassinent des Carabides. 

 La Cellule, xvi. 



14. Dufour, L. '41. Rechcrches anatomiques et physiologiques sur les Orthop- 



teres, les Hymenopteres et les Neuroptercs. Mem. savants etrang, vii. 

 Paris. 



15. Fenard, A. '97. Recherches sur les organes complementaires internes de 



I'appareil genital des Orthopteres. Bull. sci. France-Belg. xxix. 

 IG. Folsom, J. W. '06. Entomology with reference to its biological and eco- 

 nomic aspects. Philadelphia. .,...,. 



