14 University of California Publications in Zoology [Vol. 16 



All of the laboratory nymphs examined were free from parasites, but 

 it was impossible to keep the laboratory njTnphs alive long enough 

 to get conclusive evidence. The contents of eggs were examined but 

 no parasites were found. 



The regions of infection are the stomach, mid-intestine, ilium, 

 colon, and rectum. Examination of the salivary glands, Malpighian 

 tubules, reproductive organs and body cavity of the box-elder bug for 

 Cr it India have always yielded negative results. 



VIII. LITERATURE CITED 



Chagas, C. 



1909. Ueber eine neue Trypanosomiasis des Menschen. Mem. Inst. Os- 



waldo Cruz, 1, 1.59-218, pis. 9-13, 10 figs, in text. 

 KoFOiD, C. A., and Swezy, O. 



1915. Mitosis and multiple fission in trichomonad flagellates. Proc. Am. 



Acad. Arts and Sci. (In press). 

 MACKINNON, D. L. 



1910. Eerpetonionas from the alimentary tract of certain dung-flies. Para- 



sitology, 3, 255-274, pi. 19, 4 figs, in text. 



MiNCHiN, E. A., and Thomson, J. D. 



1915. The rat-trypanosome, Trypanosoma lewisi, in its relation to the vat- 

 flea, Ceratophyllus fasciatus. Quart. Jour. Micr. Sci., 60, 463-692, 

 pis. 36-45, 24 figs, in text. 



Patton, W. S. 



1908. The life-cycle of a species of Crithidia parasitic in the intestinal tract 



of Gerris fossarum Fabr. Arch. f. Prot., 12, 131-146, pi. 9. 

 Porter, A. 



1909. The morphology and life-history of Crithidia gerridis, as found in the 



British waterbug, Gerris paludum. Parasitology, 2, 348-366, pi. 4. 



1910. The structure and life-history of Crithidia melophagia (Flu), an endo- 



parasite of the sheep-ked, Melophagus ovinus. Quart. Jour. Micr. 



Sci., 55, 189-224, pis. 12-13, 15 figs, in text. 

 Prowazek, S. 



1904. Die Entwicklung von Eerpetomonas, einem mit den Trypanosomen 



verwandteu Flagellaten (Vorlaufige Mitteilung). Arb. Kais. 



Gesuudh., 20, 440-452, 7 figs, in text. 

 Strickland, C. 



1911. Description of a Eerpetomonas parasitic in the alimentary tract of 



a common green bottle fly, Lucilia sp. Parasitology, 4, 222-236, 

 pis. 8-9, 2 figs, in text. 

 Wenyon, C. M. 



1913. Observations on Eerpetomonas muscae domesticae and some allied 

 flagellates. Arch. f. Prot., 31, 1-36, pis. 1-3, 6 figs, in text and 

 1 diagram. 



Transmitted May 21, 1915. 



Zoological Laboratory, 



University op California. 



